as for fuel mods, none yet im waiting to get my stuff together so i can dump it in and get it tuned. stock afm. turbonetics 60-1 at 11 pounds.
sometimes runs lean at idle
- Thread starter peste noire
- Start date
peste noire;1838290 said:
THIS could be you problem I'm assuming at higher rpms is where you go lean and into the 12afrs ?
Your fuel pump is old and probably can't keep up. Be care full because 12afrs is risky under boost very risky
Compton74;1838302 said:
Hopefully not a FCD.
But i good tune on a piggy back can help with that also.
well im at mostly 10.5-11.6 underboost so its not really at 12.
and as for fuel cut, well doesnt it start at 12?? cause im right around 11.
and as for fuel cut, well doesnt it start at 12?? cause im right around 11.
depends, in our area i say 10-12 but you do have a bigger turbo pushing more air, so it'd be sooner.peste noire;1838304 said:
peste noire;1838304 said:
Fuel cut is not measured by the number of pounds...
12psi on a stock turbo is not the same as 12psi on a bigger aftermarket turbo.
well ill double check to see if im correct about 11 but its cause i just put on my boost controller and wideband right around the same time so i keep trying to look at both wile keeping an eye out in the road.lol im gonna put a camera to see it as i step on it.
peste noire;1838264 said:
The problem with an exhaust leak, is the O2 sensor measures what the engine has already done. Toss in an exhaust leak, and you can suck in clean air which will alter the O2 reading. Now, the ECU is attempting to fix a condition which the engine never had to deal with. Definitely not a good way to go about things. Fix the leak before you bother trying to get a meaningful reading, otherwise you are wasting your time.
dewme5;1838420 said:
This obviously only applys to the stock 02 the wideband of course of no effect on the way the car is running.
So now you must narrow down where the exhaust leak is and is it before the stock 02 sensor ? If so it will affect the way the car runs.
well i didnt it it will affected the sensor since the leak is past the sensor near where the stock cat would be.