Restart drops AFRs a point
09-03-2014, 11:14 PM
#1
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Restart drops AFRs a point
So, the car hasn't been behaving lately. I start my car (sat for ~2-1/2 hours), and drive it for 5 minutes or so. Second gear is steady over 13, upwards of 13.4 in places. Does this a few times, occurs in multiple gears. Accelerate in the same fashion to a stop light, 13.4. Restart car. Nothing above 12.5. I've been in the basement of the engineering building for far too long today and bluetooth wasn't cooperating, so I do not have any logs. I'll upload the msq though.
Car is a 2000, so returnless fuel system.
AEM EUGO
MS3-X
EGO, MAT correction, et al. are disabled (I'm 99% sure, might have re-enabled some but I don't believe so)
Car is a 2000, so returnless fuel system.
AEM EUGO
MS3-X
EGO, MAT correction, et al. are disabled (I'm 99% sure, might have re-enabled some but I don't believe so)
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09-04-2014, 12:19 PM
#4
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ASE, After Start Enrichment.
This is your ASE Taper table.
Taper sooner than 230*F
I have mine set to taper around 180*F
My guess is your car is in ASE the whole time with your good afrs. Then when you get higher then 230* your afrs are lean because ase tapers off. Or my logic could be backwards. You need to lower ase taper then retune. Probably something else in the mix too, I didn't look to hard at your tune as I'm at work.
This is your ASE Taper table.
Taper sooner than 230*F
I have mine set to taper around 180*F
My guess is your car is in ASE the whole time with your good afrs. Then when you get higher then 230* your afrs are lean because ase tapers off. Or my logic could be backwards. You need to lower ase taper then retune. Probably something else in the mix too, I didn't look to hard at your tune as I'm at work.
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09-04-2014, 02:23 PM
#5
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But you didn't say where you were getting the 13. I think it is WOT.
Mazduh: ASE is set at the crank temp and then is timed out (by tenths of seconds or by cycles as set elsewhere). The X-axis is the temp at start only. WUE works like you are thinking.
Mazduh: ASE is set at the crank temp and then is timed out (by tenths of seconds or by cycles as set elsewhere). The X-axis is the temp at start only. WUE works like you are thinking.
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