I've been chasing a low O2 problem. Installed new Accufab adjustable fpr today replacing a 15 yr old ATR unit. It brought O2 numbers up from around 600 at idle to 777-789. AF 04,INT 128,BL 137,TPS .44, IAC 25, Turbo Tweak chip,new Racetronix pump month ago.
FP set at 44-46 but it will not go lower than that no matter how far I turn it until the car starts acting like it wants to choke down. FP isn't steady at idle,the gauge bounces around,plenty of vacuum on the fpr hose. When I attach the hose pressure only drops about 1-2 lbs.
When I turn car off the gauge instantly drops to 25 lbs and after about 30 mins is 0.
I added wot fuel overall,about 10%,and at WOT O2s were 667 with 0 kr on 15 lbs of boost.
Do I have leaking injectors?
Also I recently upgraded to 140 amp alternator and made sure hot wire to pump was good.
Any help is appreciated because I'm getting frustrated.
FP set at 44-46 but it will not go lower than that no matter how far I turn it until the car starts acting like it wants to choke down. FP isn't steady at idle,the gauge bounces around,plenty of vacuum on the fpr hose. When I attach the hose pressure only drops about 1-2 lbs.
When I turn car off the gauge instantly drops to 25 lbs and after about 30 mins is 0.
I added wot fuel overall,about 10%,and at WOT O2s were 667 with 0 kr on 15 lbs of boost.
Do I have leaking injectors?
Also I recently upgraded to 140 amp alternator and made sure hot wire to pump was good.
Any help is appreciated because I'm getting frustrated.
