94 Civic Eratic Idle Problem - Have read all posts still no luck!
 

Hi all. This is my first post to the group I hope I'm able to get help.

I have a 94 Honda Civic D16Z6 1.6L V-Tech. It overheated and warped the
head. I replaced all gaskets mill had the head milled flat and pressure
tested. Replace a busted throttle body (it was broken during removal).
And all attached sensors. Removed and check IAC Valve. Engine sounds
good, sounds great actually. No pinging or valve ticks. However the car
idle eratically after being on for only minutes. Pressing on the gas
causes the engine to hold a steady rpm above 1600. The pedal to engine
response is good which makes me think this is not a timing issue. I
have no idea how to check the timing. I have a Chiltons manual but
could find nothing listed. What could cause this other than known
sensor issues TPS, IACV, FITV, no codes to display, the engine light
never comes on. Engine does not overheat. Just a very very eratic idle,
1000 - 1600 rpm. I'm tired of everyone thinking I want to race them at
red lights. Can anyone think of any other known issues?

Help is GREATLY Appreciated!!!!

Re: 94 Civic Eratic Idle Problem - Have read all posts still no luck!
 

Did you thoroughly purge the cooling system of air? Is the
cooling system topped off?

Starting from cold engine, this will require idling the car
for 40 minutes or so to get the fan to come on twice.

Air in the cooling system will result in inadequate
temperatures of certain engine control components,
potentially throwing off the idle.

My Chilton's manual covers the 94 Civic. "Checking and
Adjusting the Timing" is in Section 2, under "Ignition
Timing."

"tek" <tek_notes@bellsouth.net> wrote
> Hi all. This is my first post to the group I hope I'm able
> to get help.
>
> I have a 94 Honda Civic D16Z6 1.6L V-Tech. It overheated
> and warped the
> head. I replaced all gaskets mill had the head milled flat
> and pressure
> tested. Replace a busted throttle body (it was broken
> during removal).
> And all attached sensors. Removed and check IAC Valve.
> Engine sounds
> good, sounds great actually. No pinging or valve ticks.
> However the car
> idle eratically after being on for only minutes. Pressing
> on the gas
> causes the engine to hold a steady rpm above 1600. The
> pedal to engine
> response is good which makes me think this is not a timing
> issue. I
> have no idea how to check the timing. I have a Chiltons
> manual but
> could find nothing listed. What could cause this other
> than known
> sensor issues TPS, IACV, FITV, no codes to display, the
> engine light
> never comes on. Engine does not overheat. Just a very very
> eratic idle,
> 1000 - 1600 rpm. I'm tired of everyone thinking I want to
> race them at
> red lights. Can anyone think of any other known issues?
>
> Help is GREATLY Appreciated!!!!
>

Re: 94 Civic Eratic Idle Problem - Have read all posts still no luck!
 

Did you thoroughly purge the cooling system of air? Is the
cooling system topped off?

Starting from cold engine, this will require idling the car
for 40 minutes or so to get the fan to come on twice.

Air in the cooling system will result in inadequate
temperatures of certain engine control components,
potentially throwing off the idle.

My Chilton's manual covers the 94 Civic. "Checking and
Adjusting the Timing" is in Section 2, under "Ignition
Timing."

"tek" <tek_notes@bellsouth.net> wrote
> Hi all. This is my first post to the group I hope I'm able
> to get help.
>
> I have a 94 Honda Civic D16Z6 1.6L V-Tech. It overheated
> and warped the
> head. I replaced all gaskets mill had the head milled flat
> and pressure
> tested. Replace a busted throttle body (it was broken
> during removal).
> And all attached sensors. Removed and check IAC Valve.
> Engine sounds
> good, sounds great actually. No pinging or valve ticks.
> However the car
> idle eratically after being on for only minutes. Pressing
> on the gas
> causes the engine to hold a steady rpm above 1600. The
> pedal to engine
> response is good which makes me think this is not a timing
> issue. I
> have no idea how to check the timing. I have a Chiltons
> manual but
> could find nothing listed. What could cause this other
> than known
> sensor issues TPS, IACV, FITV, no codes to display, the
> engine light
> never comes on. Engine does not overheat. Just a very very
> eratic idle,
> 1000 - 1600 rpm. I'm tired of everyone thinking I want to
> race them at
> red lights. Can anyone think of any other known issues?
>
> Help is GREATLY Appreciated!!!!
>

Re: 94 Civic Eratic Idle Problem - Have read all posts still no luck!
 

Did you thoroughly purge the cooling system of air? Is the
cooling system topped off?

Starting from cold engine, this will require idling the car
for 40 minutes or so to get the fan to come on twice.

Air in the cooling system will result in inadequate
temperatures of certain engine control components,
potentially throwing off the idle.

My Chilton's manual covers the 94 Civic. "Checking and
Adjusting the Timing" is in Section 2, under "Ignition
Timing."

"tek" <tek_notes@bellsouth.net> wrote
> Hi all. This is my first post to the group I hope I'm able
> to get help.
>
> I have a 94 Honda Civic D16Z6 1.6L V-Tech. It overheated
> and warped the
> head. I replaced all gaskets mill had the head milled flat
> and pressure
> tested. Replace a busted throttle body (it was broken
> during removal).
> And all attached sensors. Removed and check IAC Valve.
> Engine sounds
> good, sounds great actually. No pinging or valve ticks.
> However the car
> idle eratically after being on for only minutes. Pressing
> on the gas
> causes the engine to hold a steady rpm above 1600. The
> pedal to engine
> response is good which makes me think this is not a timing
> issue. I
> have no idea how to check the timing. I have a Chiltons
> manual but
> could find nothing listed. What could cause this other
> than known
> sensor issues TPS, IACV, FITV, no codes to display, the
> engine light
> never comes on. Engine does not overheat. Just a very very
> eratic idle,
> 1000 - 1600 rpm. I'm tired of everyone thinking I want to
> race them at
> red lights. Can anyone think of any other known issues?
>
> Help is GREATLY Appreciated!!!!
>

Re: 94 Civic Eratic Idle Problem - Have read all posts still no luck!
 

Did you thoroughly purge the cooling system of air? Is the
cooling system topped off?

Starting from cold engine, this will require idling the car
for 40 minutes or so to get the fan to come on twice.

Air in the cooling system will result in inadequate
temperatures of certain engine control components,
potentially throwing off the idle.

My Chilton's manual covers the 94 Civic. "Checking and
Adjusting the Timing" is in Section 2, under "Ignition
Timing."

"tek" <tek_notes@bellsouth.net> wrote
> Hi all. This is my first post to the group I hope I'm able
> to get help.
>
> I have a 94 Honda Civic D16Z6 1.6L V-Tech. It overheated
> and warped the
> head. I replaced all gaskets mill had the head milled flat
> and pressure
> tested. Replace a busted throttle body (it was broken
> during removal).
> And all attached sensors. Removed and check IAC Valve.
> Engine sounds
> good, sounds great actually. No pinging or valve ticks.
> However the car
> idle eratically after being on for only minutes. Pressing
> on the gas
> causes the engine to hold a steady rpm above 1600. The
> pedal to engine
> response is good which makes me think this is not a timing
> issue. I
> have no idea how to check the timing. I have a Chiltons
> manual but
> could find nothing listed. What could cause this other
> than known
> sensor issues TPS, IACV, FITV, no codes to display, the
> engine light
> never comes on. Engine does not overheat. Just a very very
> eratic idle,
> 1000 - 1600 rpm. I'm tired of everyone thinking I want to
> race them at
> red lights. Can anyone think of any other known issues?
>
> Help is GREATLY Appreciated!!!!
>

Re: 94 Civic Eratic Idle Problem - Have read all posts still no luck!
 

tek wrote:
>
> Hi all. This is my first post to the group I hope I'm able to get help.
>
> I have a 94 Honda Civic D16Z6 1.6L V-Tech. <SNIP>
Just a very very eratic idle,
> 1000 - 1600 rpm. I'm tired of everyone thinking I want to race them at
> red lights. Can anyone think of any other known issues?
>
> Help is GREATLY Appreciated!!!!

----------------------------------

Try filling the coolant reservoir to the MAX, three mornings in a row
(while the engine is stone cold). If the level is dropping each morning,
you're still expelling trapped air. Don't forget to run your heater on
HOT so the air can escape from the heater core too.

'Curly'

Re: 94 Civic Eratic Idle Problem - Have read all posts still no luck!
 

tek wrote:
>
> Hi all. This is my first post to the group I hope I'm able to get help.
>
> I have a 94 Honda Civic D16Z6 1.6L V-Tech. <SNIP>
Just a very very eratic idle,
> 1000 - 1600 rpm. I'm tired of everyone thinking I want to race them at
> red lights. Can anyone think of any other known issues?
>
> Help is GREATLY Appreciated!!!!

----------------------------------

Try filling the coolant reservoir to the MAX, three mornings in a row
(while the engine is stone cold). If the level is dropping each morning,
you're still expelling trapped air. Don't forget to run your heater on
HOT so the air can escape from the heater core too.

'Curly'

Re: 94 Civic Eratic Idle Problem - Have read all posts still no luck!
 

tek wrote:
>
> Hi all. This is my first post to the group I hope I'm able to get help.
>
> I have a 94 Honda Civic D16Z6 1.6L V-Tech. <SNIP>
Just a very very eratic idle,
> 1000 - 1600 rpm. I'm tired of everyone thinking I want to race them at
> red lights. Can anyone think of any other known issues?
>
> Help is GREATLY Appreciated!!!!

----------------------------------

Try filling the coolant reservoir to the MAX, three mornings in a row
(while the engine is stone cold). If the level is dropping each morning,
you're still expelling trapped air. Don't forget to run your heater on
HOT so the air can escape from the heater core too.

'Curly'

Re: 94 Civic Eratic Idle Problem - Have read all posts still no luck!
 

tek wrote:
>
> Hi all. This is my first post to the group I hope I'm able to get help.
>
> I have a 94 Honda Civic D16Z6 1.6L V-Tech. <SNIP>
Just a very very eratic idle,
> 1000 - 1600 rpm. I'm tired of everyone thinking I want to race them at
> red lights. Can anyone think of any other known issues?
>
> Help is GREATLY Appreciated!!!!

----------------------------------

Try filling the coolant reservoir to the MAX, three mornings in a row
(while the engine is stone cold). If the level is dropping each morning,
you're still expelling trapped air. Don't forget to run your heater on
HOT so the air can escape from the heater core too.

'Curly'

Re: 94 Civic Eratic Idle Problem - Have read all posts still no luck!
 

"'Curly Q. Links'" <motsco__@interbaun.com> wrote in
news:44A93808.8EB15596@interbaun.com:

> tek wrote:
>>
>> Hi all. This is my first post to the group I hope I'm able to get help.
>>
>> I have a 94 Honda Civic D16Z6 1.6L V-Tech. <SNIP>
> Just a very very eratic idle,
>> 1000 - 1600 rpm. I'm tired of everyone thinking I want to race them at
>> red lights. Can anyone think of any other known issues?
>>
>> Help is GREATLY Appreciated!!!!
>
> ----------------------------------
>
> Try filling the coolant reservoir to the MAX, three mornings in a row
> (while the engine is stone cold). If the level is dropping each morning,
> you're still expelling trapped air. Don't forget to run your heater on
> HOT so the air can escape from the heater core too.
>
> 'Curly'
>

Doesn't the 94 Civic have a coolant air-bleed port like my 94 Integra B18
engine?

--
Jim Yanik
jyanik
at
kua.net

Re: 94 Civic Eratic Idle Problem - Have read all posts still no luck!
 

"'Curly Q. Links'" <motsco__@interbaun.com> wrote in
news:44A93808.8EB15596@interbaun.com:

> tek wrote:
>>
>> Hi all. This is my first post to the group I hope I'm able to get help.
>>
>> I have a 94 Honda Civic D16Z6 1.6L V-Tech. <SNIP>
> Just a very very eratic idle,
>> 1000 - 1600 rpm. I'm tired of everyone thinking I want to race them at
>> red lights. Can anyone think of any other known issues?
>>
>> Help is GREATLY Appreciated!!!!
>
> ----------------------------------
>
> Try filling the coolant reservoir to the MAX, three mornings in a row
> (while the engine is stone cold). If the level is dropping each morning,
> you're still expelling trapped air. Don't forget to run your heater on
> HOT so the air can escape from the heater core too.
>
> 'Curly'
>

Doesn't the 94 Civic have a coolant air-bleed port like my 94 Integra B18
engine?

--
Jim Yanik
jyanik
at
kua.net

Re: 94 Civic Eratic Idle Problem - Have read all posts still no luck!
 

"'Curly Q. Links'" <motsco__@interbaun.com> wrote in
news:44A93808.8EB15596@interbaun.com:

> tek wrote:
>>
>> Hi all. This is my first post to the group I hope I'm able to get help.
>>
>> I have a 94 Honda Civic D16Z6 1.6L V-Tech. <SNIP>
> Just a very very eratic idle,
>> 1000 - 1600 rpm. I'm tired of everyone thinking I want to race them at
>> red lights. Can anyone think of any other known issues?
>>
>> Help is GREATLY Appreciated!!!!
>
> ----------------------------------
>
> Try filling the coolant reservoir to the MAX, three mornings in a row
> (while the engine is stone cold). If the level is dropping each morning,
> you're still expelling trapped air. Don't forget to run your heater on
> HOT so the air can escape from the heater core too.
>
> 'Curly'
>

Doesn't the 94 Civic have a coolant air-bleed port like my 94 Integra B18
engine?

--
Jim Yanik
jyanik
at
kua.net

Re: 94 Civic Eratic Idle Problem - Have read all posts still no luck!
 

"'Curly Q. Links'" <motsco__@interbaun.com> wrote in
news:44A93808.8EB15596@interbaun.com:

> tek wrote:
>>
>> Hi all. This is my first post to the group I hope I'm able to get help.
>>
>> I have a 94 Honda Civic D16Z6 1.6L V-Tech. <SNIP>
> Just a very very eratic idle,
>> 1000 - 1600 rpm. I'm tired of everyone thinking I want to race them at
>> red lights. Can anyone think of any other known issues?
>>
>> Help is GREATLY Appreciated!!!!
>
> ----------------------------------
>
> Try filling the coolant reservoir to the MAX, three mornings in a row
> (while the engine is stone cold). If the level is dropping each morning,
> you're still expelling trapped air. Don't forget to run your heater on
> HOT so the air can escape from the heater core too.
>
> 'Curly'
>

Doesn't the 94 Civic have a coolant air-bleed port like my 94 Integra B18
engine?

--
Jim Yanik
jyanik
at
kua.net

Re: 94 Civic Eratic Idle Problem - Have read all posts still no luck!
 

I have cleaned the cooling system 3 times now flushing it out one of
those times. Topping it off each time and letting it idle with the heat
full blast.

I have a new symptom now.

When I start the car it immediately starts hissing. I am positive this
is due to a vacuum leak somewhere but I cannot pin point exactly where
it is comming from. The car is able to run and drives great, however
after running the car for say at least 15 minutes when you turn it off
some coolant will spill out. I assuming its from the same place that is
hissing. It seems to be under the intake manifold somewhere however I
cannot see down in there far enough to find the leak.

Anybody know of any commong vacuum leaks or hosing that came come
undone easily?

Thanks.

Tek



Jim Yanik wrote:
> "'Curly Q. Links'" <motsco__@interbaun.com> wrote in
> news:44A93808.8EB15596@interbaun.com:
>
> > tek wrote:
> >>
> >> Hi all. This is my first post to the group I hope I'm able to get help.
> >>
> >> I have a 94 Honda Civic D16Z6 1.6L V-Tech. <SNIP>
> > Just a very very eratic idle,
> >> 1000 - 1600 rpm. I'm tired of everyone thinking I want to race them at
> >> red lights. Can anyone think of any other known issues?
> >>
> >> Help is GREATLY Appreciated!!!!
> >
> > ----------------------------------
> >
> > Try filling the coolant reservoir to the MAX, three mornings in a row
> > (while the engine is stone cold). If the level is dropping each morning,
> > you're still expelling trapped air. Don't forget to run your heater on
> > HOT so the air can escape from the heater core too.
> >
> > 'Curly'
> >
>
> Doesn't the 94 Civic have a coolant air-bleed port like my 94 Integra B18
> engine?
>
> --
> Jim Yanik
> jyanik
> at
> kua.net

Re: 94 Civic Eratic Idle Problem - Have read all posts still no luck!
 

I have cleaned the cooling system 3 times now flushing it out one of
those times. Topping it off each time and letting it idle with the heat
full blast.

I have a new symptom now.

When I start the car it immediately starts hissing. I am positive this
is due to a vacuum leak somewhere but I cannot pin point exactly where
it is comming from. The car is able to run and drives great, however
after running the car for say at least 15 minutes when you turn it off
some coolant will spill out. I assuming its from the same place that is
hissing. It seems to be under the intake manifold somewhere however I
cannot see down in there far enough to find the leak.

Anybody know of any commong vacuum leaks or hosing that came come
undone easily?

Thanks.

Tek



Jim Yanik wrote:
> "'Curly Q. Links'" <motsco__@interbaun.com> wrote in
> news:44A93808.8EB15596@interbaun.com:
>
> > tek wrote:
> >>
> >> Hi all. This is my first post to the group I hope I'm able to get help.
> >>
> >> I have a 94 Honda Civic D16Z6 1.6L V-Tech. <SNIP>
> > Just a very very eratic idle,
> >> 1000 - 1600 rpm. I'm tired of everyone thinking I want to race them at
> >> red lights. Can anyone think of any other known issues?
> >>
> >> Help is GREATLY Appreciated!!!!
> >
> > ----------------------------------
> >
> > Try filling the coolant reservoir to the MAX, three mornings in a row
> > (while the engine is stone cold). If the level is dropping each morning,
> > you're still expelling trapped air. Don't forget to run your heater on
> > HOT so the air can escape from the heater core too.
> >
> > 'Curly'
> >
>
> Doesn't the 94 Civic have a coolant air-bleed port like my 94 Integra B18
> engine?
>
> --
> Jim Yanik
> jyanik
> at
> kua.net