Rough start!!!!
02-07-2009, 07:29 AM
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Rough start!!!!
ok here is my problem everytime when the engine is cold lets say in the morning i go to start my car (EG coupe w/ 94 LS motor) and it takes a while to start. engine is cracking but no start when the car does start after so many cranks the car runs rough way below idle car sounds like it wants to turn off, lets say 300 rpm. then i try to give it gas when at low idle and the car shuts right off but if i leave it to idle low for a 2-3 min the car jumps to normal idle. this olny happens when the engine is cold if say i start my car and go some where turn the car off then get back in the car the it starts up fine. if anyone has any info it would really help. thanks!
02-07-2009, 07:48 AM
#4
Re: Rough start!!!!
Fast idle valve -- click link above.
It's located on the throttle body and bypasses extra air to the intake manifold when the engine is cold. 6th generation Civics don't have a FITV but 5th generation Civics do.
It's located on the throttle body and bypasses extra air to the intake manifold when the engine is cold. 6th generation Civics don't have a FITV but 5th generation Civics do.
02-07-2009, 07:50 AM
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Re: Rough start!!!!
how do you know what gen your civic is?
EDIT: nvm. i dont have on. just started reading it
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02-08-2009, 01:24 PM
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Re: Rough start!!!!
similar problem for me to. But this only happen to me rarely, but it happens all the time when the wheather is really cold with a cold engine ONLY if I start it with th AC/Heater on
02-08-2009, 05:48 PM
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Re: Rough start!!!!
Ok so i havent tried it yet but my friend had a throttle body without an fitv and i pretty muched bypassed where it went and made the coolant hose go directly to the iacv and it does the same thing. (so for those of you with the same problem as me dont try to cap/block/seal the fitv off) is the thing under the throttle body that i bypassed only for cooling the throttle body or is it meant for something else? I did however take the fitv off the throttle body that was on my car and found that it was in fact super drity and will clean it soon. Now i also found out that my ignitor and coil are going bad. Can this could be my problem too???????
02-09-2009, 05:55 AM
#11
Re: Rough start!!!!
Ok so i havent tried it yet but my friend had a throttle body without an fitv and i pretty muched bypassed where it went and made the coolant hose go directly to the iacv and it does the same thing. (so for those of you with the same problem as me dont try to cap/block/seal the fitv off) is the thing under the throttle body that i bypassed only for cooling the throttle body or is it meant for something else? I did however take the fitv off the throttle body that was on my car and found that it was in fact super drity and will clean it soon. Now i also found out that my ignitor and coil are going bad. Can this could be my problem too???????
Definitely clean the FITV and put the original throttle body back on.
A bad coil or igniter would also cause starting problems.
02-09-2009, 04:48 PM
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Re: Rough start!!!!
yeah your right i am going to clean it and putnit back on. as for the throttle body that i put on it matched up and it pretty much does the same **** as before so you know same **** different day
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