I recently replaced my crower 402s and did a valve adjustment. My NA setup is making a popping sound when im trying to add more fuel with the FPR and sounds like its running really sluggish on idle. I didn't take it out for a spin yet because it doesn't sound close to anything normal. I'm also getting a code 11. According to helms diagnostics codes, its not even listed. I have a p28 chipped running on a stock GSR basemap.


What could be causing the popping sound? Any advice would help.

 

Why are you adding fuel? Was you running lean before? You may be running too rich now, and that casued the popping sound.

 

i checked the fuel pressure gauge and its reading less than 25 psi. if i go higher its starts popping

 

what kinda popping sound? and 25 is really low, is that with the vac line on or off? you should be in the 40psi area with the vac line off the fpr. alsomake sure the guage is good and not fubared, good luck

 

its with the vac line on. the popping sound is shooting out of the exhaust about every sec or so if i were to raise up fuel pressure.

 

the car feels like it wants to shutdown every second, but it keeps going. Kinda a pause once every second(run, choke, run, choke, run, choke, runs, choke, runs... dies out). Anyone know what this could possibly be?

 

Damn...I have no .02 for you, but thats crazy what happens...

 

You should be adjusting fuel pressure with the vacuum line off. It sounds as if you're in need of some real tuning, rather than some DIY fuel pressure adjustments.

 

what program r u run n on your ecu? r u run n UBERDAT/CROME. if u r then ur car is run n crazy rich and u need to lean it out.

 

im having a similar problem with my turbo ls/vtec i just put a new turbo on cause my old was bad and now im trying to adjjust the pressure and it;s giving me problems when i take it out to drive soon as it builds up a lil boost the car wants to shut down im curious too

ne advice