Quote:
Originally Posted by knucklesplitter
How do you know the AFR calibration isn't off? This would not cause a CEL, but maybe the AFR is actually 15.x:1 or 13.x:1 instead of 14.7:1.
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I don't know for sure, but it's been like this for over 5 years and my car always runs great and has been more dependable than I expected (I'm at 125K miles, most of them stage II and I've autocrossed for 5 years). In the last 5 years It's been tuned/logged with wideband by Ed a few times at sea level and this elevation and always get's thumbs up from Ed, though my stock injectors hold me back a little at sea level.
I guess there's a chance that a connection could/has become loose which could cause an emerging issue where the ECU is getting fed bad AFR data though...but it's hard to justify the $ and time to replace the O2 sensor without more evidence IMHO.
CEL still has not returned.