need help with car stalling after throttle

[blowngst]

hey guys this is really becoming a nuisance. car runs fine no hesitation or anything like that. BOV is recirculated so its not that. it seems that when i am more than 20% throttle or more than 10HG/vacuum on the boost gauge and put it in neutral the car will stall out. BUT when i free rev it, it does not stall!?!?! I personally think this is fuel related and not a boost/vac leak but i could be wrong. i have a SAFCll with upgraded injectors. please give me some ideas!

 

[Chaosweaver]

Check your MAF, shit happened to me today, I opened the hood and the pipe had wiggled out.

 

[blowngst]

all piping is tight and secured. i have a 2gen maf. i have no idea why it is doing this....

can anyone help me?

 

[brownfinger]

Maybe you haven't tuned the SAFC correctly for your injector/MAF combo, but also, maybe: Fuel pump. A bunk pump will rev a free engine just fine, but starve it under load.

 

[blowngst]

funny you said something about the fuel pump! i do notice a loud humming noise on hot days. i just really need to track this down but i really need your advice/help guys!

checked for leaks today and could not find anything. messed with that safc in the dec. air and there was no change. please i need more advice.

....

 

[blowngst]

why the hell am i not getting help.

 

[2g 6 bolt swap]

The fuel pumps always like to make that noise. Thats how you know its working. Is your car mainly stock? Has it had a tune of some sort? Not having a tune for larger injectors could cause this. The motor could be getting too much gas when you let of the throttle.

 

[blowngst]

yea the car is internally stock but no it has bigger injectors and i have a SAFCll that controls it. the safc looks to be set up decent.

 

[EclipticalGS]

Did you recently relocate your battery?? Could be a bad ground.
Could be a front 02 sensor going dead, Could be your ISC or TPS isnt set right.

Your car is dumping fuel when you go off throttle.

Set your ISC, TPS.
Check your Grounds
Test your 02 sensor

Report back.

 

[blowngst]

i checked the tps and isc and they are clean and are operating correct. the battery is old but i did test it and its getting the correct volts along with the alternator.