Quote:
Originally Posted by steve99
Then look at your commanded AFR vsAFR its out about 10% in places above 3v maf, ie your running leaner than what the ecu is asking for...
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I looked at this for the logs I posted above and I think I spotted some deviation by just under 10%, but being slightly richer, but moments before hitting 3v where it'll be sometimes almost 20-30% off where commanded is asking for somewhere on the order of 15:1 and it's doing 18-20
Is that something to be concerned about? Otherwise I seem to be maybe a touch richer at higher RPM/throttle. I wonder if that accounts for the residue on my tailpipes, just a small black patch that runs down the center bottom of both.
I'm thinking maybe because my numbers look pretty close to being where they should I should set the alarms you outlined in your link and not obsess over watching the graphs. I see knock correction pull down and I get this feeling like something is wrong but it seems like it's all -.69 or smaller, except for what pulled my timing earlier that now seems corrected. I drove to Houston yesterday and it's stuck at IAM of 1 but I noticed small pulls on the correction graph from cruise control throttle inputs to maintain speed in 6th that didn't result in a change in IAM but I see those dips at all and I feel a little sick.
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