Hi, my O2 are high from launch to top end 890-869. I have blown HG messing with the Alky, but do i lean out the o2 by raising the alky pump speed max? I have high O2, and thats after i have took 6% fuel in all gears, and 4% in 1st&2nd. This is on a cold night! Also will the MAP sensor cause this, my car shows PE/Boost before i even get on the gas hard. I just hooked up my Direct Scan, and its alot to take in, im trying to see whats out of wack, if any thing.
HIGH O2s!!!
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bmackinnon
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No... you don't lean it with alky settings.... what's your base fp? Sounds like it may be too high... if the chip is burned for your combo, it should be damn close at 43 psi.... are the BLM's low (pulling fuel)?.... may need to raise the boost to lean it out.. 
MAP sensor has nothing to do with fueling (other than controlling the alky). Got to get the fuel rite, then add boost and alky to control detonation.... I would suggest starting over with base fp at 43 psi and chip nominal and go from there.... if anything, the cold weather should lean it out a little...
Edit - also make sure your getting good x-counts on the o2 sensor.... tuning with the narrow band is kinda scary, and you want to make sure it's reading properly... and it doesn't take much to get into pe.....
MAP sensor has nothing to do with fueling (other than controlling the alky). Got to get the fuel rite, then add boost and alky to control detonation.... I would suggest starting over with base fp at 43 psi and chip nominal and go from there.... if anything, the cold weather should lean it out a little...Edit - also make sure your getting good x-counts on the o2 sensor.... tuning with the narrow band is kinda scary, and you want to make sure it's reading properly... and it doesn't take much to get into pe.....
The first BLM is high, but all the others are low. How do you set it if it keeps moving, what should i do with the cross count, the A/F what should it be. I just need info on what to do on useing this Direct Scan. Tell me what i need to do, boost is already 20-24. Timing is 22/20, thats how the chip is set, i can add fuel, ect....
After the car is warmed up after a short drive around (don't just warm it up in the driveway).
What is your idle BLM
what is your idle cross counts
what is your idle airflow (MAF)
what is your base fuel pressure? hose disconnected
Those high O2's...where they measured with DS or another scan tool?
What is your idle BLM
what is your idle cross counts
what is your idle airflow (MAF)
what is your base fuel pressure? hose disconnected
Those high O2's...where they measured with DS or another scan tool?
Idle BLM 132/mixture switch between rich/lean-coolant=168/MAT=113/TPS 46/44-LV8=33/MAF=5/INJ.PW2.06(1.4%) IAC=56/ A/F=13.4/O2 Volts=192/ O2 cont=246/ INT=128/Spark=28/ FP line off =42psi
I don't see any numbers too far out where they should be.
IAC is a little higher than would be expected, and while still OK, TPS is a little higher than I usually like to see.
I like to see IAC numbers (warmed up, park/neutral) closer to 20-30.
and TPS around .44 engine running which should be .42 key on engine off.
IAC is a little higher than would be expected, and while still OK, TPS is a little higher than I usually like to see.
I like to see IAC numbers (warmed up, park/neutral) closer to 20-30.
and TPS around .44 engine running which should be .42 key on engine off.
