Stalling 1990 honda Civic

Hello,

I have a 1990 honda civic which has developped a stalling problem.
when the engine is slightly warm (because I ran if for a short period of
time or because it cooled down), and I then try to restart the car,
sometimes, it does not want to start. It looks to me that the engine is not
getting gaz, but I might be wrong. The only way to "fix" the problem is to
let the car sit for 1 minute and then it restart.
It also sometimes does it in similar case, but once the engine is running
(like, 30 s after start, under same condition), the engine will stall.

Does anyone has any idea what this could be and how I could fix it?

thanks, cyrille

 

Hi Cyrille

Does your car stall with your foot off the accelerator but can you keep
it going by pressing the accelerator? In other words, does the idle
just drop down and it eventually stalls?

If so, it could be your Idle Air Control (IAC) system. It controls air
flow especially needed during starting and while the engine is cold. It
could be that it is not supplying the air you need. On a civic It is
located on your trottle body, I think.

The way to test it is to start the car, ramp it to 3000 RPM until the
fan goes on. Then disconnect the IAC connector. If the engine
increases, your IAC is ok. If it still decreases and dies, you may
want to look into replacing that unit.

While it is not the only thing that can do this, it is an easy thing to
check. I am sure other people on this group will have other things to
try as well.

Hope it is useful.
Remco

 

Hi Cyrille
(second try -- I think this may be a double post. If so, sorry)

Does your car stall with your foot off the accelerator but can you keep
it going by pressing the accelerator? In other words, does the idle
just drop down and it eventually stalls?

If so, it could be your Idle Air Control (IAC) system. It controls air
flow especially needed during starting and while the engine is cold. It
could be that it is not supplying the air you need. On a civic It is
located on your trottle body, I think.

The way to test it is to start the car, ramp it to 3000 RPM until the
fan goes on. Then disconnect the IAC connector. If the engine
increases, your IAC is ok. If it still decreases and dies, you may
want to look into replacing that unit.

While it is not the only thing that can do this, it is an easy thing to
check. I am sure other people on this group will have other things to
try as well.

Hope it is useful.
Remco