Its odd really. While under boost, my a/f is not changing.
My Fuel Pressure increases like it should, but my A/F is reading from 14.2-14.8 All the time, even under boost.
What wuold cause it to not change? lol
The other weird thing is when I step on it on the highway, whenever I get off the offramp, the car will run super ass rich, meaning 11.4-12.2 at idle, and it will stall out if I dont keep the foot on the gas. It only does it on highway though, and it doesnt do it everytime, just like 1 out of every 3 times I step on it on the highway.
#90220, "RE: A/F Not Changing under boost." In response to Reply # 3
Originally posted by eclipse982nrRST just some fuel injector cleaner though
That stuff is junk and never works. To clean a fuel injector you have to force a solution through it backwards.
Originally posted by eclipse982nrRST Are you talking about the wbo2 sensor?
No, I was talking about the factory narroband since that is what is running your car in closed loop. I probably should have been more specific earlier...
#90225, "RE: A/F Not Changing under boost." In response to Reply # 4
Originally posted by ner947
Originally posted by eclipse982nrRST just some fuel injector cleaner though
That stuff is junk and never works. To clean a fuel injector you have to force a solution through it backwards.
Originally posted by eclipse982nrRST Are you talking about the wbo2 sensor?
No, I was talking about the factory narroband since that is what is running your car in closed loop. I probably should have been more specific earlier...
#93955, "RE: A/F Not Changing under boost. Its back!" In response to Reply # 8 Mar-19-06 04:42 AM by eclipse982nrRST
Originally posted by sike You can boost in closed loop. Closed loop is until arounmd 70% throttle. If you're not getting open loop at WOT, I'd say TPS.
I am bringing this thread back because yesterday, this started again. I dont understand, the car ran so damn perfect like 2 weeks ago, and now shit is just fucking up, lol. Oh well, part of havnig a highly modded car.
Anyways, the A/F is not changing again, is this a MAP sensor problem or what?
#93956, "RE: A/F Not Changing under boost. Its back!" In response to Reply # 9
Did you replace the map yet? If its broke it will certainly effect fuel. Is it still not changing at WOT? As I said the computer will always try to hit 14.7:1 unless you are at WOT.
#93957, "RE: A/F Not Changing under boost. Its back!" In response to Reply # 10
Originally posted by sike Did you replace the map yet? If its broke it will certainly effect fuel. Is it still not changing at WOT? As I said the computer will always try to hit 14.7:1 unless you are at WOT.
Ya I bought a brand new MAP yesterday.
I didnt hit WOT yet again though. Just trying to keep away from the lovely detonation.
I will bring her out again later on and try a WOT pull and see what happens. I will keep ya posted.
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