Hey guys,
I have a 91 accord 2 door coupe. Car will only start when it feels like it. I just put in new plugs, wires, cap, rotor, Main relay, new fuel pump is reading 34psi, coil tested is ok, and just put in a new fuel filter. The car will studder when I try to start it. My dad tested out the air boost valve and I guess that might be bad. Anyone got any ideas? I'm diein over here.

 

when it wont start, will it turn over?......or does it seem dead?......will it start and then sputter?.......when it does start, does it run well?

 

Chack ignition timing.

 

It turns over like a champ and when it actually runs it runs like a champ. But it only starts about 10% of the time and only when it is cold. It turns over and sputters and sometimes it doesn't even sputter.

 

Main relay? But I thought when this heated up it would act completely dead. But it is that time of year for Hondas again. Read some of the main relay threads and see if it sounds like your problem.

 

I've already replaced the main relay. The previous owner replaced it and I JUST replaced it 3 days ago. I've read all the main relay threads and this isn't the problem.

 

could it possibly be a loose vacumn line ?

 

Even though your coil is testing fine it still may be bad. Happens more then you think. If you have a way to check, I would also check the ignitor and the crank sensor. Watch the crank sensor with a multi-meter. See if there is a 5v reference going back to the ECU when turning it over. if there is less then 5v's and the car is not starting then it would more likely be a crank sensor or a wire shorted out.

 

ok,
I'll test them in the morning. THanks for the idea

 

checked both and they were both A OK. Any other ideas>?

 

why are u dying when u have like 4 other cars? lol

I know what your problem is! Check your idle controller motor. Its a motor that regulate how much air is going into your engine depending on the temperature. Its thermo air control or something. Its located somewhere near your throttle body. This motor is an electronic choke.

Try stepping on the gas half way down while starting your car and see it starts.

Tell me how it goes.

 

thanks dave,
i'll try that out first thing in the am! I'll let ya know!
Kev

 

good thinking david that never crossed my mind

 

yea i had a similar problem in my accord, and i replaced the "fast idle thermo valve", like dave said, its near the throttle body. hope thats helps. now help me with my thread!!!! lol, j/k
lata guyz

 

Hey guys,
Checked that stuff you suggested today and everything checks out ok! Any other ideas?

 

injectors?

 

nope those are fine too! lol... This thing is killin me! I'm gonna take it to the shop Monday or Tuesday and see what happens with that cause I'm totally out of ideas!