I''ve recently noticed that i've been getting horable gas mileage lately and more than usual carbon biuld up on exhaust. Also smelling exhaust inside car but no visible leaks. Would B&M fuel pressure gauge and regulator help?
d16y8
header
intake
apexi ws2
p28 ecu to cancel secondary o2

Need some HELP!

 

is the car smoking? black white....etc

 

maybe something about the ecu and secondary o2? any black smoke?

 

either bad o2 sensor when u installed aftermarket parts or the ECu is screwin it up. you have the obdII-obdI harness?

i had the same problem. hx with bolt ons, the car smelled like *** and i got bad gas mileage. turns out my o2 on my exhaust was bad, got an engine code, so i got a fooler o2 sensor and it fixed the problem.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mugenej8power &raquo;</TD></TR><TR><TD CLASS="quote">maybe something about the ecu and secondary o2? any black smoke?</TD></TR></TABLE>

x2, ecu maybe?

 

i would say its the o2 sensor also...but if u got a buddy with a p28 try swappin them for a lil and see what it does...

 

Sorry guys but i've already got a virgin P28 with the obd2 -1 boomslang conversion harness because my secondary O2 sensor went out and it was cheaper to go OBD1 than to just buy the sensor to replace it. Thinking about sending it off to Phaerable to get chipped and socketed for future tuning? any thoughts?

 

oh and it's black smoke. i'm not burning any oil.

 

I have same problem, it might be just a simple leak in the insulation, or engine going bad.

 

yeah it sucks i''m only getting like 26 MPG right now and should be getting in the 28-31 area!

 

same problem.. i have poor gas mileage and black smoke when reving past 4k rpm..

 

I've researched around a bit and heard good things so i'm gonna send my ecu to Phearable and get tuned. We'll see what happens once i get it back and do some test!

 

Smelling exhaust in the cabin = exhaust leak. Probably on the two header surfaces... regardless, fix it.

Black smoke = fuel related
Put the stock ECU back in and see if the problem goes away... or a code is thrown (probably high on the rear o2). Seeing as though you modified the EMS, you have a good idea to get that straightened first.

Rich

 

gee thanks for the expert advice. i guess i just never thougt about an exhuast leak! Just incase, that was sarcasm.