ok got the a/f guage installed it is the aem one ,,,question is what is the calibration setting suppose to set at ,,,anyone else install this gauge and if so what setting are you using ,,p0, is the default but guage bounes a lot ,,,after reading instructions i think im more confussed,,if im reading this right i need to put it on the p3 setting ,,,p3 says it emulates the autronic wideband o2sensor calibration ,,???????????????????????????????
A/F setting HELP
- Thread starter Ironhead
- Start date
breederofkoi
Full Access Member
If its the same AEM wideband I installed, I think I just left it on the default setting.. Digital gauge??? you said bouncing, how much is it varying??
breederofkoi
Full Access Member
Mine skips all over hell when you first start her (warming up). I get the same reading with just key on. I could see it jumping a couple tenths of a point, but jumping 2-3 whole points after everything has warmed up seems a little odd.. Lemme see if I can find the pamphlet that came with mine and I'll try to refresh my memory.. BTW, happy birthday
at idle or at cuise it will bounce a good bit , the pcm is tryin to keep the engine at perfect fuel air, which is about 14.7-1
so it will bounce all over at idle and cruise
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Where the guage works best is at full throttle, say do a pull from a low rpm in say third or fourth to say 5000 to 5500 rpms .
under a full constant throttle it will pull a constant vacuum and the guage will stay at a steady rate. you dont want to go much higher than say a 12 or 13 rate, much higher than that and you start running lean, too lean
so it will bounce all over at idle and cruise
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Where the guage works best is at full throttle, say do a pull from a low rpm in say third or fourth to say 5000 to 5500 rpms .
under a full constant throttle it will pull a constant vacuum and the guage will stay at a steady rate. you dont want to go much higher than say a 12 or 13 rate, much higher than that and you start running lean, too lean
ok after screeming up and down hwy 6 for a test run the a/f reads at over3500 rpm drops around mid 12s ,,at around 4000 plus it drops to low 11s to 12.2 or so ,,slamming it to 5000 plus it will be in the low11s and 10s ,,,does this sound ok ,,at idle after a good warm up it bounses between 14.2 to 15.5 and sometimes it pegs out to 16 ,,,,
Sounds normal...
Big Worm
Full Access Member
IS it normal to do that? I was worried about that
yes..............it will fluctuate at idle,
breederofkoi
Full Access Member
yeppers. That sounds a little better.. Sound more like you were just a cold engine trying to warm up, they skip around a bit... If your on a stock ECM calibration (tune), it'll get rich as hell under a full pull (low to high RPM in a good gear). Just my opinion, but I think chrysler set it rich as hell to keep it safe (no need to be that rich on a N/A motor).
Big Worm
Full Access Member
yea I figured it would, but I just did not want some crazy stuff going on.
Stinker said:
And at any speed....
Ironhead said:
Depends on the tune...mine did that before my last tune....
Ironhead said:
Not a problem if this happens....the PCM is just shutting off fuel when coasting...probably a good idea..
FATJACK
Full Access Member
Ironhead said:
Don't worry about any of that stuff until after September
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