need help

[redmk3turbo]

So after recently blowing another head gasket and replacing it, now it wasnt starting so after checking everything my tps wasnt working so i replaced it and now when i start the car i can only keep it running by keeping my foot on the gas it sounds perfect and will rev up but i cant let my foot off without it dieing. Any ideas ive tried doing the timing a few times to make sure its dialed in and it is and i keeping checking the tps but thats also checking out within the ohm requirements. So if anyone has a tip that would be great.

 

[87M-GTE]

check the ISCV

Sam

 

[supraguy@aol]

When you say timing is checked, you mean you've verified the CPS tooth position?
Because it's sounds an AWFUL lot like your cps is retarded by one tooth.

 

[mkiiichip]

If the car ran fine before and during the BHG, i would rule out component failure.
Start checking for vacuum leaks, unmetered air leaks, vacuum routing, ignition timing, cam timing, etc.

Have you pulled codes?

 

[Beefy_Heafy]

hmm redmk3 mabye some of the wireing for you idle control broke when u were unplugging etc. check to see if your ecu is throwing engine codes.

 

[redmk3turbo]

thanks ya ill check and see if maybe my cps is off a lil and ya the car was throwing a 31 which said it could be vacuum or the afm