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Ok, so what you meant by a "MAF reset", is simply you unplugged the MAF sensor.
So yesterday I reset adaptations using ISTA, you get 3 options 1, 2 or number 3. I choose number 1 which should reset all adaptions. I know it worked because after I restarted the car, the car did the crank sensor re-learn procedure (car cranks for a little before it starts). When I checked the fuel trims long term were now at zero also. I restarted the car maybe a couple times since the adaptations clear yesterday, and today when I started the car, the P1093 was gone and the SES light was out by itself I didn't clear it. Now, I expect it will probably come back, but as is using this trick I should be able to get by inspection. In my state you can go 3 months early before it's due, so in September i will use this again unless I actually find the root cause of this. Note, I cleared adaptations already using my Autel MK808 maybe a month ago, but now doing it with ISTA I know it didn't work, because after restarting the car it didn't do the crank sensor relearn. I may try it again, the only differnce was with ISTA the car was running, and when I used the MK808 it wasn't running, not sure if that makes any difference. Anyway, this may be a good work around for anyone else facing this issue and needs to get through emissions inspection.
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08-13-2025, 01:57 PM
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