1996 Civic Check Engine Light
#16
Guest
Posts: n/a
Re: 1996 Civic Check Engine Light (update)
ExtremeValue <raheem@gmail.com> wrote in news:b180c524-6ca9-4c6f-97de-
17f0082d7a90@n75g2000hsh.googlegroups.com:
> P0420: Catalytic converter efficiency low on Bank 1.
>
> So, the code was reset two days ago and it re-appears today. Thanks.
> Last time, as I have mentioned, the mechanic said I have to replace
> the catalytic converter. Any thought on this?
>
> Thanks
>
>
May simply be poor connections at the igniter. Believe it or not.
Check that before replacing the cat.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
17f0082d7a90@n75g2000hsh.googlegroups.com:
> P0420: Catalytic converter efficiency low on Bank 1.
>
> So, the code was reset two days ago and it re-appears today. Thanks.
> Last time, as I have mentioned, the mechanic said I have to replace
> the catalytic converter. Any thought on this?
>
> Thanks
>
>
May simply be poor connections at the igniter. Believe it or not.
Check that before replacing the cat.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
#17
Guest
Posts: n/a
Re: 1996 Civic Check Engine Light (update)
On Mar 6, 8:32 pm, Tegger <teg...@tegger.c0m> wrote:
> ExtremeValue <rah...@gmail.com> wrote in news:b180c524-6ca9-4c6f-97de-
> 17f0082d7...@n75g2000hsh.googlegroups.com:
>
> > P0420: Catalytic converter efficiency low on Bank 1.
>
> > So, the code was reset two days ago and it re-appears today. Thanks.
> > Last time, as I have mentioned, the mechanic said I have to replace
> > the catalytic converter. Any thought on this?
>
> > Thanks
>
> May simply be poor connections at the igniter. Believe it or not.
>
> Check that before replacing the cat.
>
> --
> Tegger
>
> The Unofficial Honda/Acura FAQwww.tegger.com/hondafaq/
Ignition connectors are reconnected and tightned as per my request.
The code was reset and it came back again in 2-3 hours after the car
was driven for sometime to make the engine warm. The mechanic said he
checked both O2 sensors and the second one (after the Converter) shows
fluctuation on the readinds meaning that the cat converter is not
functioning efficiently. Ideally the the readings from the second O2
sensor should stabilized after sometime. (this is what he said).
Thanks for all the comments.
> ExtremeValue <rah...@gmail.com> wrote in news:b180c524-6ca9-4c6f-97de-
> 17f0082d7...@n75g2000hsh.googlegroups.com:
>
> > P0420: Catalytic converter efficiency low on Bank 1.
>
> > So, the code was reset two days ago and it re-appears today. Thanks.
> > Last time, as I have mentioned, the mechanic said I have to replace
> > the catalytic converter. Any thought on this?
>
> > Thanks
>
> May simply be poor connections at the igniter. Believe it or not.
>
> Check that before replacing the cat.
>
> --
> Tegger
>
> The Unofficial Honda/Acura FAQwww.tegger.com/hondafaq/
Ignition connectors are reconnected and tightned as per my request.
The code was reset and it came back again in 2-3 hours after the car
was driven for sometime to make the engine warm. The mechanic said he
checked both O2 sensors and the second one (after the Converter) shows
fluctuation on the readinds meaning that the cat converter is not
functioning efficiently. Ideally the the readings from the second O2
sensor should stabilized after sometime. (this is what he said).
Thanks for all the comments.
#18
Guest
Posts: n/a
Re: 1996 Civic Check Engine Light (update)
ExtremeValue <raheem@gmail.com> wrote in news:7a4daf2c-1f02-4150-85f5-
e6ed4f84cad3@d4g2000prg.googlegroups.com:
> On Mar 6, 8:32 pm, Tegger <teg...@tegger.c0m> wrote:
>> ExtremeValue <rah...@gmail.com> wrote in news:b180c524-6ca9-4c6f-97de-
>> 17f0082d7...@n75g2000hsh.googlegroups.com:
>>
>> > P0420: Catalytic converter efficiency low on Bank 1.
>>
>> > So, the code was reset two days ago and it re-appears today. Thanks.
>> > Last time, as I have mentioned, the mechanic said I have to replace
>> > the catalytic converter. Any thought on this?
>>
>> > Thanks
>>
>> May simply be poor connections at the igniter. Believe it or not.
>>
>> Check that before replacing the cat.
>>
>>
>
>
> Ignition connectors are reconnected and tightned as per my request.
> The code was reset and it came back again in 2-3 hours after the car
> was driven for sometime to make the engine warm. The mechanic said he
> checked both O2 sensors and the second one (after the Converter) shows
> fluctuation on the readinds meaning that the cat converter is not
> functioning efficiently. Ideally the the readings from the second O2
> sensor should stabilized after sometime. (this is what he said).
>
> Thanks for all the comments.
Looks like your cat is in fact no longer good. Replace it. Happens all the
time.
With legislated emissions limits at incredibly low levels, cats these days
are operating close to their limits. A cat that would have been deemed in
fine shape in 1990 is considered junk now.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
e6ed4f84cad3@d4g2000prg.googlegroups.com:
> On Mar 6, 8:32 pm, Tegger <teg...@tegger.c0m> wrote:
>> ExtremeValue <rah...@gmail.com> wrote in news:b180c524-6ca9-4c6f-97de-
>> 17f0082d7...@n75g2000hsh.googlegroups.com:
>>
>> > P0420: Catalytic converter efficiency low on Bank 1.
>>
>> > So, the code was reset two days ago and it re-appears today. Thanks.
>> > Last time, as I have mentioned, the mechanic said I have to replace
>> > the catalytic converter. Any thought on this?
>>
>> > Thanks
>>
>> May simply be poor connections at the igniter. Believe it or not.
>>
>> Check that before replacing the cat.
>>
>>
>
>
> Ignition connectors are reconnected and tightned as per my request.
> The code was reset and it came back again in 2-3 hours after the car
> was driven for sometime to make the engine warm. The mechanic said he
> checked both O2 sensors and the second one (after the Converter) shows
> fluctuation on the readinds meaning that the cat converter is not
> functioning efficiently. Ideally the the readings from the second O2
> sensor should stabilized after sometime. (this is what he said).
>
> Thanks for all the comments.
Looks like your cat is in fact no longer good. Replace it. Happens all the
time.
With legislated emissions limits at incredibly low levels, cats these days
are operating close to their limits. A cat that would have been deemed in
fine shape in 1990 is considered junk now.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
#19
Guest
Posts: n/a
Re: 1996 Civic Check Engine Light (solved, Tegger was the key)
On Mar 10, 5:58 pm, Tegger <teg...@tegger.c0m> wrote:
> ExtremeValue <rah...@gmail.com> wrote in news:7a4daf2c-1f02-4150-85f5-
> e6ed4f84c...@d4g2000prg.googlegroups.com:
>
>
>
> > On Mar 6, 8:32 pm, Tegger <teg...@tegger.c0m> wrote:
> >> ExtremeValue <rah...@gmail.com> wrote in news:b180c524-6ca9-4c6f-97de-
> >> 17f0082d7...@n75g2000hsh.googlegroups.com:
>
> >> > P0420: Catalytic converter efficiency low on Bank 1.
>
> >> > So, the code was reset two days ago and it re-appears today. Thanks.
> >> > Last time, as I have mentioned, the mechanic said I have to replace
> >> > the catalytic converter. Any thought on this?
>
> >> > Thanks
>
> >> May simply be poor connections at the igniter. Believe it or not.
>
> >> Check that before replacing the cat.
>
> > Ignition connectors are reconnected and tightned as per my request.
> > The code was reset and it came back again in 2-3 hours after the car
> > was driven for sometime to make the engine warm. The mechanic said he
> > checked both O2 sensors and the second one (after the Converter) shows
> > fluctuation on the readinds meaning that the cat converter is not
> > functioning efficiently. Ideally the the readings from the second O2
> > sensor should stabilized after sometime. (this is what he said).
>
> > Thanks for all the comments.
>
> Looks like your cat is in fact no longer good. Replace it. Happens all the
> time.
>
> With legislated emissions limits at incredibly low levels, cats these days
> are operating close to their limits. A cat that would have been deemed in
> fine shape in 1990 is considered junk now.
>
> --
> Tegger
>
> The Unofficial Honda/Acura FAQwww.tegger.com/hondafaq/
Original problem: Check Engine Light came on
Secondary problem: Engine was vibrating when put on drive but resting.
Problem might have been resolved!!
I think I should thank Tegger for his key comment that helped me
solving the Check Engine light problem. Tegger mentioned that it is
related to ignition and since I noticed this problem after replacing
the distributor caps and the wires, there was a high probability that
it is related to ignition.
I tried to convince my mechanic saying about the this group and also
mentioned that one experienced guy (Tegger!) suggested to check all
the ignition connections. In the mean time, I noticed another problem
which, to my mechanic, looked like a "misfire" (I dont know what it
is). He then spent about an hour on my car after connecting the engine
to his "Scope" and tested rigorously but did NOT find any proof of
misfire.
He then put a new set of distributor cap and wires and again tested
for about half an hour. By this time he reset the Check Engine Light.
Now that I am driving it without any trouble and the light did not
came on again! Seems like the problem is solved!!!!
Thanks to Tegger for his comment that lead to the solution. Thanks
are due to my mechanic (who spent about 3 hours on my car in total
without charging me a single dollar). And he is the one who I was able
to talk to regarding my thoughts (which obviously came from this
group) and he gladly considered my opinions. This is kind of unusual
for a person with 30 years of experience! Seems like learning has no
limit.
I put all this information here so that others might get benefited.
> ExtremeValue <rah...@gmail.com> wrote in news:7a4daf2c-1f02-4150-85f5-
> e6ed4f84c...@d4g2000prg.googlegroups.com:
>
>
>
> > On Mar 6, 8:32 pm, Tegger <teg...@tegger.c0m> wrote:
> >> ExtremeValue <rah...@gmail.com> wrote in news:b180c524-6ca9-4c6f-97de-
> >> 17f0082d7...@n75g2000hsh.googlegroups.com:
>
> >> > P0420: Catalytic converter efficiency low on Bank 1.
>
> >> > So, the code was reset two days ago and it re-appears today. Thanks.
> >> > Last time, as I have mentioned, the mechanic said I have to replace
> >> > the catalytic converter. Any thought on this?
>
> >> > Thanks
>
> >> May simply be poor connections at the igniter. Believe it or not.
>
> >> Check that before replacing the cat.
>
> > Ignition connectors are reconnected and tightned as per my request.
> > The code was reset and it came back again in 2-3 hours after the car
> > was driven for sometime to make the engine warm. The mechanic said he
> > checked both O2 sensors and the second one (after the Converter) shows
> > fluctuation on the readinds meaning that the cat converter is not
> > functioning efficiently. Ideally the the readings from the second O2
> > sensor should stabilized after sometime. (this is what he said).
>
> > Thanks for all the comments.
>
> Looks like your cat is in fact no longer good. Replace it. Happens all the
> time.
>
> With legislated emissions limits at incredibly low levels, cats these days
> are operating close to their limits. A cat that would have been deemed in
> fine shape in 1990 is considered junk now.
>
> --
> Tegger
>
> The Unofficial Honda/Acura FAQwww.tegger.com/hondafaq/
Original problem: Check Engine Light came on
Secondary problem: Engine was vibrating when put on drive but resting.
Problem might have been resolved!!
I think I should thank Tegger for his key comment that helped me
solving the Check Engine light problem. Tegger mentioned that it is
related to ignition and since I noticed this problem after replacing
the distributor caps and the wires, there was a high probability that
it is related to ignition.
I tried to convince my mechanic saying about the this group and also
mentioned that one experienced guy (Tegger!) suggested to check all
the ignition connections. In the mean time, I noticed another problem
which, to my mechanic, looked like a "misfire" (I dont know what it
is). He then spent about an hour on my car after connecting the engine
to his "Scope" and tested rigorously but did NOT find any proof of
misfire.
He then put a new set of distributor cap and wires and again tested
for about half an hour. By this time he reset the Check Engine Light.
Now that I am driving it without any trouble and the light did not
came on again! Seems like the problem is solved!!!!
Thanks to Tegger for his comment that lead to the solution. Thanks
are due to my mechanic (who spent about 3 hours on my car in total
without charging me a single dollar). And he is the one who I was able
to talk to regarding my thoughts (which obviously came from this
group) and he gladly considered my opinions. This is kind of unusual
for a person with 30 years of experience! Seems like learning has no
limit.
I put all this information here so that others might get benefited.
#20
Guest
Posts: n/a
Re: 1996 Civic Check Engine Light (solved, Tegger was the key)
ExtremeValue <raheem@gmail.com> wrote in
news:345c1ad9-4f4e-4fa0-92d8-41714e4d3d5c@s12g2000prg.googlegroups.com:
>
> Thanks to Tegger for his comment that lead to the solution. Thanks
> are due to my mechanic (who spent about 3 hours on my car in total
> without charging me a single dollar). And he is the one who I was able
> to talk to regarding my thoughts (which obviously came from this
> group) and he gladly considered my opinions. This is kind of unusual
> for a person with 30 years of experience! Seems like learning has no
> limit.
>
> I put all this information here so that others might get benefited.
Thanks for the credit, but I'm a bit confused...
So then there wasn't anything wrong with the /igniter/ connections, but
problems with /other/ ignition componentry?
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
news:345c1ad9-4f4e-4fa0-92d8-41714e4d3d5c@s12g2000prg.googlegroups.com:
>
> Thanks to Tegger for his comment that lead to the solution. Thanks
> are due to my mechanic (who spent about 3 hours on my car in total
> without charging me a single dollar). And he is the one who I was able
> to talk to regarding my thoughts (which obviously came from this
> group) and he gladly considered my opinions. This is kind of unusual
> for a person with 30 years of experience! Seems like learning has no
> limit.
>
> I put all this information here so that others might get benefited.
Thanks for the credit, but I'm a bit confused...
So then there wasn't anything wrong with the /igniter/ connections, but
problems with /other/ ignition componentry?
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
#21
Guest
Posts: n/a
Re: 1996 Civic Check Engine Light (solved, Tegger was the key)
Tegger <tegger@tegger.c0m> wrote in
news:Xns9A605663D8DD1tegger@207.14.116.130:
> ExtremeValue <raheem@gmail.com> wrote in
> news:345c1ad9-4f4e-4fa0-92d8-41714e4d3d5c@s12g2000prg.googlegroups.com:
>
>
>>
>> Thanks to Tegger for his comment that lead to the solution. Thanks
>> are due to my mechanic (who spent about 3 hours on my car in total
>> without charging me a single dollar). And he is the one who I was able
>> to talk to regarding my thoughts (which obviously came from this
>> group) and he gladly considered my opinions. This is kind of unusual
>> for a person with 30 years of experience! Seems like learning has no
>> limit.
>>
>> I put all this information here so that others might get benefited.
>
>
> Thanks for the credit, but I'm a bit confused...
>
> So then there wasn't anything wrong with the /igniter/ connections, but
> problems with /other/ ignition componentry?
>
it sounds like he installed aftermarket cap/plug wires the first time,and
OEM cured the problems.
--
Jim Yanik
jyanik
at
kua.net
news:Xns9A605663D8DD1tegger@207.14.116.130:
> ExtremeValue <raheem@gmail.com> wrote in
> news:345c1ad9-4f4e-4fa0-92d8-41714e4d3d5c@s12g2000prg.googlegroups.com:
>
>
>>
>> Thanks to Tegger for his comment that lead to the solution. Thanks
>> are due to my mechanic (who spent about 3 hours on my car in total
>> without charging me a single dollar). And he is the one who I was able
>> to talk to regarding my thoughts (which obviously came from this
>> group) and he gladly considered my opinions. This is kind of unusual
>> for a person with 30 years of experience! Seems like learning has no
>> limit.
>>
>> I put all this information here so that others might get benefited.
>
>
> Thanks for the credit, but I'm a bit confused...
>
> So then there wasn't anything wrong with the /igniter/ connections, but
> problems with /other/ ignition componentry?
>
it sounds like he installed aftermarket cap/plug wires the first time,and
OEM cured the problems.
--
Jim Yanik
jyanik
at
kua.net
#22
Guest
Posts: n/a
Re: 1996 Civic Check Engine Light (solved, Tegger was the key)
On Mar 13, 7:30 am, Tegger <teg...@tegger.c0m> wrote:
> ExtremeValue <rah...@gmail.com> wrote innews:345c1ad9-4f4e-4fa0-92d8-41714e4d3d5c@s12g2000prg.googlegroups.com:
>
>
>
> > Thanks to Tegger for his comment that lead to the solution. Thanks
> > are due to my mechanic (who spent about 3 hours on my car in total
> > without charging me a single dollar). And he is the one who I was able
> > to talk to regarding my thoughts (which obviously came from this
> > group) and he gladly considered my opinions. This is kind of unusual
> > for a person with 30 years of experience! Seems like learning has no
> > limit.
>
> > I put all this information here so that others might get benefited.
>
> Thanks for the credit, but I'm a bit confused...
>
> So then there wasn't anything wrong with the /igniter/ connections, but
> problems with /other/ ignition componentry?
>
> --
> Tegger
>
> The Unofficial Honda/Acura FAQwww.tegger.com/hondafaq/
I dont know. But he changed the whole piece of distributor cap and the
4 wires (that goes to the spark plugs) and that actually seem to have
solved the problem. I am not sure if that answers your confusion.
Jim's reply might be the answer.
> ExtremeValue <rah...@gmail.com> wrote innews:345c1ad9-4f4e-4fa0-92d8-41714e4d3d5c@s12g2000prg.googlegroups.com:
>
>
>
> > Thanks to Tegger for his comment that lead to the solution. Thanks
> > are due to my mechanic (who spent about 3 hours on my car in total
> > without charging me a single dollar). And he is the one who I was able
> > to talk to regarding my thoughts (which obviously came from this
> > group) and he gladly considered my opinions. This is kind of unusual
> > for a person with 30 years of experience! Seems like learning has no
> > limit.
>
> > I put all this information here so that others might get benefited.
>
> Thanks for the credit, but I'm a bit confused...
>
> So then there wasn't anything wrong with the /igniter/ connections, but
> problems with /other/ ignition componentry?
>
> --
> Tegger
>
> The Unofficial Honda/Acura FAQwww.tegger.com/hondafaq/
I dont know. But he changed the whole piece of distributor cap and the
4 wires (that goes to the spark plugs) and that actually seem to have
solved the problem. I am not sure if that answers your confusion.
Jim's reply might be the answer.
#23
Guest
Posts: n/a
Re: 1996 Civic Check Engine Light (solved, Tegger was the key)
ExtremeValue <raheem@gmail.com> wrote in
news:3df9cdeb-e74e-48e2-ac17-c4ef85486a19@d21g2000prf.googlegroups.com:
> On Mar 13, 7:30 am, Tegger <teg...@tegger.c0m> wrote:
>> ExtremeValue <rah...@gmail.com> wrote
>> innews:345c1ad9-4f4e-4fa0-92d8-41714e4d3d5c@s12g2000prg.googlegroups.c
>> om:
>>
>>
>>
>> > Thanks to Tegger for his comment that lead to the solution. Thanks
>> > are due to my mechanic (who spent about 3 hours on my car in total
>> > without charging me a single dollar). And he is the one who I was
>> > able to talk to regarding my thoughts (which obviously came from
>> > this group) and he gladly considered my opinions. This is kind of
>> > unusual for a person with 30 years of experience! Seems like
>> > learning has no limit.
>>
>> > I put all this information here so that others might get benefited.
>>
>> Thanks for the credit, but I'm a bit confused...
>>
>> So then there wasn't anything wrong with the /igniter/ connections,
>> but problems with /other/ ignition componentry?
>>
>>
>
> I dont know. But he changed the whole piece of distributor cap and the
> 4 wires (that goes to the spark plugs) and that actually seem to have
> solved the problem. I am not sure if that answers your confusion.
>
> Jim's reply might be the answer.
I suspect so. Although misfires /should/ be detected by the knock sensor
and set a P030x DTC...
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
news:3df9cdeb-e74e-48e2-ac17-c4ef85486a19@d21g2000prf.googlegroups.com:
> On Mar 13, 7:30 am, Tegger <teg...@tegger.c0m> wrote:
>> ExtremeValue <rah...@gmail.com> wrote
>> innews:345c1ad9-4f4e-4fa0-92d8-41714e4d3d5c@s12g2000prg.googlegroups.c
>> om:
>>
>>
>>
>> > Thanks to Tegger for his comment that lead to the solution. Thanks
>> > are due to my mechanic (who spent about 3 hours on my car in total
>> > without charging me a single dollar). And he is the one who I was
>> > able to talk to regarding my thoughts (which obviously came from
>> > this group) and he gladly considered my opinions. This is kind of
>> > unusual for a person with 30 years of experience! Seems like
>> > learning has no limit.
>>
>> > I put all this information here so that others might get benefited.
>>
>> Thanks for the credit, but I'm a bit confused...
>>
>> So then there wasn't anything wrong with the /igniter/ connections,
>> but problems with /other/ ignition componentry?
>>
>>
>
> I dont know. But he changed the whole piece of distributor cap and the
> 4 wires (that goes to the spark plugs) and that actually seem to have
> solved the problem. I am not sure if that answers your confusion.
>
> Jim's reply might be the answer.
I suspect so. Although misfires /should/ be detected by the knock sensor
and set a P030x DTC...
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
#24
Guest
Posts: n/a
Re: 1996 Civic Check Engine Light (solved, Tegger was the key)
Tegger wrote:
> ExtremeValue <raheem@gmail.com> wrote in
> news:3df9cdeb-e74e-48e2-ac17-c4ef85486a19@d21g2000prf.googlegroups.com:
>
>> On Mar 13, 7:30 am, Tegger <teg...@tegger.c0m> wrote:
>>> ExtremeValue <rah...@gmail.com> wrote
>>> innews:345c1ad9-4f4e-4fa0-92d8-41714e4d3d5c@s12g2000prg.googlegroups.c
>>> om:
>>>
>>>
>>>
>>>> Thanks to Tegger for his comment that lead to the solution. Thanks
>>>> are due to my mechanic (who spent about 3 hours on my car in total
>>>> without charging me a single dollar). And he is the one who I was
>>>> able to talk to regarding my thoughts (which obviously came from
>>>> this group) and he gladly considered my opinions. This is kind of
>>>> unusual for a person with 30 years of experience! Seems like
>>>> learning has no limit.
>>>> I put all this information here so that others might get benefited.
>>> Thanks for the credit, but I'm a bit confused...
>>>
>>> So then there wasn't anything wrong with the /igniter/ connections,
>>> but problems with /other/ ignition componentry?
>>>
>>>
>> I dont know. But he changed the whole piece of distributor cap and the
>> 4 wires (that goes to the spark plugs) and that actually seem to have
>> solved the problem. I am not sure if that answers your confusion.
>>
>> Jim's reply might be the answer.
>
>
> I suspect so. Although misfires /should/ be detected by the knock sensor
> and set a P030x DTC...
>
yeah, but there's misfires and there's misfires. weak spark is not a
misfire, but it definitely reduces combustion completeness and therefore
affects both power and emissions. weak spark is most definitely
possible with a worn distributor cap full of spark eroded contact crud
and disintegrating carbon brush debris.
> ExtremeValue <raheem@gmail.com> wrote in
> news:3df9cdeb-e74e-48e2-ac17-c4ef85486a19@d21g2000prf.googlegroups.com:
>
>> On Mar 13, 7:30 am, Tegger <teg...@tegger.c0m> wrote:
>>> ExtremeValue <rah...@gmail.com> wrote
>>> innews:345c1ad9-4f4e-4fa0-92d8-41714e4d3d5c@s12g2000prg.googlegroups.c
>>> om:
>>>
>>>
>>>
>>>> Thanks to Tegger for his comment that lead to the solution. Thanks
>>>> are due to my mechanic (who spent about 3 hours on my car in total
>>>> without charging me a single dollar). And he is the one who I was
>>>> able to talk to regarding my thoughts (which obviously came from
>>>> this group) and he gladly considered my opinions. This is kind of
>>>> unusual for a person with 30 years of experience! Seems like
>>>> learning has no limit.
>>>> I put all this information here so that others might get benefited.
>>> Thanks for the credit, but I'm a bit confused...
>>>
>>> So then there wasn't anything wrong with the /igniter/ connections,
>>> but problems with /other/ ignition componentry?
>>>
>>>
>> I dont know. But he changed the whole piece of distributor cap and the
>> 4 wires (that goes to the spark plugs) and that actually seem to have
>> solved the problem. I am not sure if that answers your confusion.
>>
>> Jim's reply might be the answer.
>
>
> I suspect so. Although misfires /should/ be detected by the knock sensor
> and set a P030x DTC...
>
yeah, but there's misfires and there's misfires. weak spark is not a
misfire, but it definitely reduces combustion completeness and therefore
affects both power and emissions. weak spark is most definitely
possible with a worn distributor cap full of spark eroded contact crud
and disintegrating carbon brush debris.
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