i have this posted in TPI but it looks like there is more traffic here....

well so far my GFs car has been running great up will the other day. I got a call at work asn she said her car wouldnt start...well it was 9 degrees that day so i thought it may have been water in the fuel....

When i got home...it still wouldnt start unless i held the gas pedal down...it started....smoked a lot then stopped but will not idle. It just dies, in order to start the car, you have to hold the gas down a little...and have to hold it to keep it running.

It does smoke now and it smells rich very rich....

Revs perfectly fine all the way to redline....no hesitation or anything. Just wont idle. Any ideas what would all of a sudden do this????

Oh yea by the way

No Codes.....


Its TPI 350 swap......
I'm going to do a complete tune-up today....Its needs it anyway. The Vacuume line going to the MAP is trashed, but looks like its been trashed for a long time....i'll replace that. Could an EGR valve cause this??? she was getting an egr light a few months back....

Car just seems like its running too rich....

Throttle Pos sensor? i hate just buying **** for the car when it may not be the problem....

Thanks guys
Ed

 

ok to update....
New MAP
New TPS
Cleaned EGR
New Plugs/Wires/Cap/Rotor

Still wont idle at all

I turned up the Idle screw and she idles, and runs fine......

Why would it all of a suddon just lose RPM.....???

I'm confused

 

I am having the same problem. Did you find out what was wrong?

 

Possibly (Probably) a clogged IAC valve. Get some carb cleaner and spray that **** down.. PS dont know the extent of your automotive knowledge, but the IAC valve is the valve that controls the idle air (hence Idle Air Control Valve ) commonly it will get clogged with carbon, and it will do this faster if you dont have a n air filter or if you have a K&N. it is located at the throttle body, if you take the air cleaner you will see the WALL-E loooking opening and in between WALL-E's eyes there is an opening roughly the size of a dime. this is where the iac valve is. It basically lets air bypass the throttle plate when closed, so when carbon gets in and/or it sticks, idle is **** and you will need more air on startup which is why it will rev and start with the throttle open.


Let us know if that does it.


QED

 

PS put the idle screw back to where it was!