Car dying when giving gas when first started up

[KillerX]

So I see that my cars still having problems starting up. I put all my settings to 0 on my safc but the car still starts crappy....

It usually takes 3 times until the car is started and ruining good...

Now my question is, when I first start the car its sputters like its gonna die at like almost 500-700rpm then dies. BUT when I try to give a bit of gas it just kills the car. and even when I get it running if I give it gas itll bring the rpms down and almost die until its fully warmed up.

Whats going on here?

 

[JohnCIV_Talon]

Are you recirculating your bov? How old are your spark plugs and wires? I see that you have 580cc injectors, you need to use your safc to compensate for them!! I would say around 10-15% on each point for those. Do you have some kind of logging device to tune with?

 

[KillerX]

JohnCIV_Talon, He he well I can tell your right on the button
1) No its not recirculated because the person before had this mickey mouse SSQ BOX
2) its stock right now I havent put the 580's in yet

I do have a logger device but im new at this and dont know what I should be looking for

thanks

 

[JohnCIV_Talon]

Well there is your problem. You need to recirculate your bov. Go get some hose that looks like it will work, and make it work somehow.

 

[tqmx1]

One thing to check is the engine coolant temperature sensor. If it goes open it lets the ECU think it is at opperating temp and lean out the cold starting fuel mixture thus a hard cold start.

 

[GsxProject]

One thing to check is the engine coolant temperature sensor. If it goes open it lets the ECU think it is at opperating temp and lean out the cold starting fuel mixture thus a hard cold start.

Hey I'm having the same problem with my car and was wondering, if it is the coolant temp sensor would it make the car spit out a code or check engine light would come on?

 

[Quasimondo]

Only if it was a 2G or any vehicle that has OBD2 1G's and GVR-4's on the other hand have a simpler OBD1 system that only checks for the presence of that sensor. The sensor could be dead and the ecu wouldn't care as long as one registers when it checks for it.

 

[edenTSI]

i've had this problem twice. each time was a easy fix. they were both hot days. i let my car sit while i played some hacky-sack wit some friends, when i went to start it it would idle at about 500rpm (my engine was rocking back and forth, looked crazy). then when i would give it gas it would die. each time i would try it would die. i ended up starting it, and not giving it any gas. then after about 30 seconds it came upto 900rpm and ran nice. after getting home i realized i had my idle control screw (located ontop of your intake manifold) too low, and it wasn't letting enough air into the engine, causing it to die when i gave it more gas and it wasnt getting enough air. i'm lucky i didn't flood the engine.

anyways, this is how i did it on my 91 talon. just leave it in neutral and then adjust the idle control screw on your intake manifold (i found this by looking through my haynes manual, go buy one). if you turn it one way it will lower your idle, turn it the other and it will raise it. i had it tuned to run at lower RPMs in the winter, but i forgot to change it back. anyways i hope this helps. it really freaked me out when this happened.