Help car idles for 30 sec then dies :(

[Talon562]

hello dsmtuners i need help asap, i have a 95 talon tsi fwd and the problem is that every time i turn on the car it idles for 30sec then dies, byt i can turn it on right away and samr thing happens again so i checked for boost leaks and fuel problems aswell, i then disconnected the MAF and it idled perfectly with out it so i decided to replacr it and still no change i just got an ecu just to make sure does anyne have any idea what it might be?

 

[xxNocturnalxx]

Sounds like it could be ECU related, you said you replaced that already?

Also, does it die suddenly or does it putter out? If you rev it up higher does it still die?

 

[Cainimusprime]

Try checking all of your vacuum lines, making sure they are sealed. I had a vacuum leak for a while and had the same problem. I also had a malfunctioning temp sensor that was telling the ECU I was running hot, so it was very lean, causing it the same issue. Hope this helps!

-Cainimusprime.

 

[Talon562]

I have another ecu but i havent installed it yet, but whenn i turn it on the car idles fine for like 30 sec and then it sputters and idles rough then it dies, if i rev it the car struggles to stay on. Today im installing the ecu. Thanks for the quick reply hopefjlly ithis will help me ou

 

[liquidsilver]

Stock fuel system, right? Let us know what happens when you swap the ECU.

 

[Talon562]

Ok thank you fingers crossed

Ok. Guys so i installed the ecu and everything seemes fine, ima tighten evetything up let it warm up and then test drove it, hopefully everything goes smoothly

 

[xxNocturnalxx]

Any luck? So it was the ECU then?

 

[Talon562]

ok so the ecu i installed came off of a 2g gsx eprom and it runs but really rich and i cant boost past 8psi, so now im syuck with a running car but no boost, so im hoping its a minor boost leak, damn i swear dsms can never work properly for more than a month before another issue comes up:/ thanks for the quick reply i appreciate it

 

[tomcat5157]

I know how you feel ive been having a ton of issues one goes bad I fix it then another... just the nature of the beast I guess. well best of luck to you hope all goes well.