90 Honda Accord
 

I've been having a problem with my 1990 Honda Accord.

When I started having the problem, the car would run for a couple of minutes,
then it would just shut off. Shortly after, it wouldn't start at all. So, I
replaced the main relay, and it still wouldn't start (I'd hear only 1 click).
There's no power to the fuel pump, and I also lost the ignition spark. I
checked the continuity of the wires in the relay. When I measured it with a
digital meter, the wires showed continuity. However, when I tested it with a
light probe, the bulb didn't light up (which leads me to believe there's no
continuity). I switched the ECU, and that didn't help either. The ECU
powered up when I checked it.

If anyone can point me in the right direction from here, I'd appreciate it.

Thanks


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Re: 90 Honda Accord
 

Gero00 via CarKB.com wrote:
> I've been having a problem with my 1990 Honda Accord.
>
> When I started having the problem, the car would run for a couple of minutes,
> then it would just shut off. Shortly after, it wouldn't start at all. So, I
> replaced the main relay, and it still wouldn't start (I'd hear only 1 click).

did you replace it with a new one or a used one?

> There's no power to the fuel pump, and I also lost the ignition spark. I
> checked the continuity of the wires in the relay. When I measured it with a
> digital meter, the wires showed continuity. However, when I tested it with a
> light probe, the bulb didn't light up (which leads me to believe there's no
> continuity). I switched the ECU, and that didn't help either. The ECU
> powered up when I checked it.
>
> If anyone can point me in the right direction from here, I'd appreciate it.
>
> Thanks
>
>

Re: 90 Honda Accord
 

The relay was brand new. The ECU was used but in working condition.

jim beam wrote:
>> I've been having a problem with my 1990 Honda Accord.
>>
>> When I started having the problem, the car would run for a couple of minutes,
>> then it would just shut off. Shortly after, it wouldn't start at all. So, I
>> replaced the main relay, and it still wouldn't start (I'd hear only 1 click).
>
>did you replace it with a new one or a used one?
>
>> There's no power to the fuel pump, and I also lost the ignition spark. I
>> checked the continuity of the wires in the relay. When I measured it with a
>[quoted text clipped - 6 lines]
>>
>> Thanks


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Re: 90 Honda Accord
 

Ignition switch?

"Gero00 via CarKB.com" <u14924@uwe> wrote in message
news:55f2b1db378b3@uwe...
> I've been having a problem with my 1990 Honda Accord.
>
> When I started having the problem, the car would run for a couple of
minutes,
> then it would just shut off. Shortly after, it wouldn't start at all.
So, I
> replaced the main relay, and it still wouldn't start (I'd hear only 1
click).
> There's no power to the fuel pump, and I also lost the ignition spark. I
> checked the continuity of the wires in the relay. When I measured it with
a
> digital meter, the wires showed continuity. However, when I tested it
with a
> light probe, the bulb didn't light up (which leads me to believe there's
no
> continuity). I switched the ECU, and that didn't help either. The ECU
> powered up when I checked it.
>
> If anyone can point me in the right direction from here, I'd appreciate
it.
>
> Thanks
>
>
> --
> Message posted via CarKB.com
> http://www.carkb.com/Uwe/Forums.aspx...-cars/200510/1

Re: 90 Honda Accord
 

The ignition switch is working fine.

M.Paul wrote:
>Ignition switch?
>
>> I've been having a problem with my 1990 Honda Accord.
>>
>[quoted text clipped - 11 lines]
>>
>> Thanks


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Re: 90 Honda Accord
 

The ignition switch is working fine.

M.Paul wrote:
>Ignition switch?
>
>> I've been having a problem with my 1990 Honda Accord.
>>
>[quoted text clipped - 11 lines]
>>
>> Thanks


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Re: 90 Honda Accord
 

"Gero00 via CarKB.com" <u14924@uwe> wrote in message news:55f3fdb9c2157@uwe...

> I've been having a problem with my 1990 Honda Accord.
> When I started having the problem, the car would run for a couple of minutes,
> then it would just shut off. Shortly after, it wouldn't start at all. So, I
> replaced the main relay, and it still wouldn't start (I'd hear only 1 click).
> There's no power to the fuel pump, and I also lost the ignition spark. I
> checked the continuity of the wires in the relay. When I measured it with a
> digital meter, the wires showed continuity. However, when I tested it with a
> light probe, the bulb didn't light up (which leads me to believe there's no
> continuity). I switched the ECU, and that didn't help either. The ECU
> powered up when I checked it.
> If anyone can point me in the right direction from here, I'd appreciate it.
> The relay was brand new...

It sounds like you lost power to the ECU. There are multiple
location where power enters the ECU. No power, no spark, no fuel.
Does the check engine light comes on then goes off and able to
retrieve codes? Secondly, got signal from the crank sensor?

Re: 90 Honda Accord
 

"Gero00 via CarKB.com" <u14924@uwe> wrote in message news:55f3fdb9c2157@uwe...

> I've been having a problem with my 1990 Honda Accord.
> When I started having the problem, the car would run for a couple of minutes,
> then it would just shut off. Shortly after, it wouldn't start at all. So, I
> replaced the main relay, and it still wouldn't start (I'd hear only 1 click).
> There's no power to the fuel pump, and I also lost the ignition spark. I
> checked the continuity of the wires in the relay. When I measured it with a
> digital meter, the wires showed continuity. However, when I tested it with a
> light probe, the bulb didn't light up (which leads me to believe there's no
> continuity). I switched the ECU, and that didn't help either. The ECU
> powered up when I checked it.
> If anyone can point me in the right direction from here, I'd appreciate it.
> The relay was brand new...

It sounds like you lost power to the ECU. There are multiple
location where power enters the ECU. No power, no spark, no fuel.
Does the check engine light comes on then goes off and able to
retrieve codes? Secondly, got signal from the crank sensor?

Re: 90 Honda Accord
 

When I turn on the ignition, the check engine lights stays on the whole time.
How can I find out whether the ECU powers up?

Thanks for your help.




Burt S. wrote:
>> I've been having a problem with my 1990 Honda Accord.
>> When I started having the problem, the car would run for a couple of minutes,
>[quoted text clipped - 8 lines]
>> If anyone can point me in the right direction from here, I'd appreciate it.
>> The relay was brand new...
>
>It sounds like you lost power to the ECU. There are multiple
>location where power enters the ECU. No power, no spark, no fuel.
>Does the check engine light comes on then goes off and able to
>retrieve codes? Secondly, got signal from the crank sensor?


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Re: 90 Honda Accord
 

When I turn on the ignition, the check engine lights stays on the whole time.
How can I find out whether the ECU powers up?

Thanks for your help.




Burt S. wrote:
>> I've been having a problem with my 1990 Honda Accord.
>> When I started having the problem, the car would run for a couple of minutes,
>[quoted text clipped - 8 lines]
>> If anyone can point me in the right direction from here, I'd appreciate it.
>> The relay was brand new...
>
>It sounds like you lost power to the ECU. There are multiple
>location where power enters the ECU. No power, no spark, no fuel.
>Does the check engine light comes on then goes off and able to
>retrieve codes? Secondly, got signal from the crank sensor?


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Re: 90 Honda Accord
 

"Gero00 via CarKB.com" <u14924@uwe> wrote in news:5616e315198b0@uwe:

> When I turn on the ignition, the check engine lights stays on the
> whole time. How can I find out whether the ECU powers up?


If your Check Engine light comes on, your ECU *IS* "powered up".

Honda ECUs are reliable like the sun. Don't change it.

Check for error codes stored by the ECU:
Pull carpet back from passenger footwell.
See the red LED?
Turn ignition to ON, but not to START.
If LED flashes, codes are stored.
Count flashes. There may be both long and short. Sequence will be separated
by long pause. Multiple codes may be stored, so watch carefully.

Long blink=10
Short blink=1
Sequence long-short-short-short-short=code 14.

Your symptoms sound like a bad ignition switch or igniter. does your tach
act oddly?


--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/

Re: 90 Honda Accord
 

"Gero00 via CarKB.com" <u14924@uwe> wrote in news:5616e315198b0@uwe:

> When I turn on the ignition, the check engine lights stays on the
> whole time. How can I find out whether the ECU powers up?


If your Check Engine light comes on, your ECU *IS* "powered up".

Honda ECUs are reliable like the sun. Don't change it.

Check for error codes stored by the ECU:
Pull carpet back from passenger footwell.
See the red LED?
Turn ignition to ON, but not to START.
If LED flashes, codes are stored.
Count flashes. There may be both long and short. Sequence will be separated
by long pause. Multiple codes may be stored, so watch carefully.

Long blink=10
Short blink=1
Sequence long-short-short-short-short=code 14.

Your symptoms sound like a bad ignition switch or igniter. does your tach
act oddly?


--
TeGGeR®

The Unofficial Honda/Acura FAQ
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Re: 90 Honda Accord
 

I checked the error codes stored by the ECU, and I found code 14, which is
the Idle Air Control valve. The code was there before the car stopped
working, though. I replaced the ignitor and the ignition coil, neither of
which helped. I checked the ignition switch by turning it on, and the engine
light, the battery light and the oil light came on. I still only get 1 click
on the main relay.

If I ground wire 8 on the main relay, the fuel pump starts working. I still
don't have a spark, though.

I'd appreciate it if you had any other ideas. Thanks!

TeGGeR® wrote:
>> When I turn on the ignition, the check engine lights stays on the
>> whole time. How can I find out whether the ECU powers up?
>
>If your Check Engine light comes on, your ECU *IS* "powered up".
>
>Honda ECUs are reliable like the sun. Don't change it.
>
>Check for error codes stored by the ECU:
>Pull carpet back from passenger footwell.
>See the red LED?
>Turn ignition to ON, but not to START.
>If LED flashes, codes are stored.
>Count flashes. There may be both long and short. Sequence will be separated
>by long pause. Multiple codes may be stored, so watch carefully.
>
>Long blink=10
>Short blink=1
>Sequence long-short-short-short-short=code 14.
>
>Your symptoms sound like a bad ignition switch or igniter. does your tach
>act oddly?
>


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Re: 90 Honda Accord
 

I checked the error codes stored by the ECU, and I found code 14, which is
the Idle Air Control valve. The code was there before the car stopped
working, though. I replaced the ignitor and the ignition coil, neither of
which helped. I checked the ignition switch by turning it on, and the engine
light, the battery light and the oil light came on. I still only get 1 click
on the main relay.

If I ground wire 8 on the main relay, the fuel pump starts working. I still
don't have a spark, though.

I'd appreciate it if you had any other ideas. Thanks!

TeGGeR® wrote:
>> When I turn on the ignition, the check engine lights stays on the
>> whole time. How can I find out whether the ECU powers up?
>
>If your Check Engine light comes on, your ECU *IS* "powered up".
>
>Honda ECUs are reliable like the sun. Don't change it.
>
>Check for error codes stored by the ECU:
>Pull carpet back from passenger footwell.
>See the red LED?
>Turn ignition to ON, but not to START.
>If LED flashes, codes are stored.
>Count flashes. There may be both long and short. Sequence will be separated
>by long pause. Multiple codes may be stored, so watch carefully.
>
>Long blink=10
>Short blink=1
>Sequence long-short-short-short-short=code 14.
>
>Your symptoms sound like a bad ignition switch or igniter. does your tach
>act oddly?
>


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Re: 90 Honda Accord
 

"Gero00 via CarKB.com" <u14924@uwe> wrote in news:56244fcf5b230@uwe:

> I checked the error codes stored by the ECU, and I found code 14,
> which is the Idle Air Control valve. The code was there before the
> car stopped working, though. I replaced the ignitor and the ignition
> coil, neither of which helped. I checked the ignition switch by
> turning it on, and the engine light, the battery light and the oil
> light came on. I still only get 1 click on the main relay.


<snip>


That doesn't mean the ignition switch is OK.

It's still the main suspect.


--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/