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Title: 8E0906018B 0004 ME7.5 conversion from me3.8.2 issues + VVT off Post by: bfge on August 19, 2026, 02:20:48 AM Hi,
Currently i'm working on a me3(AEB) to me7.5(AVJ) engine harness + ecu swap. I addapted all the required sensors (temperature, etc) and the car starts, but the idle is verry rough (and the car stalls after a few seconds). After looking it seems like the ignition advance goes from ~5 when going form to ~20+ before dying) and cannot figure out why. Currently im thinking that VVT might have a reason in this, as the AEB engine doesnt have it but the ecu expects it. If anyone can help me with a solution for vvt off (i cannot find a full mappack for this ecu + sw variant) + maybe secondary lambda to get me started i would be grateful (would be awersome if all the other stuff like secondary air injection can be disabled too). I attached ori, a mappack i found in this forum a while ago but cant for my life find the post again and a modified file where i tried to adjust the advance + labda off Title: Re: 8E0906018B 0004 ME7.5 conversion from me3.8.2 issues + VVT off Post by: fknbrkn on August 19, 2026, 01:13:46 PM avj has a different camshaft sensor wheel
4 cuts vs 1 cut at aeb Title: Re: 8E0906018B 0004 ME7.5 conversion from me3.8.2 issues + VVT off Post by: bfge on August 20, 2026, 03:33:23 AM avj has a different camshaft sensor wheel 4 cuts vs 1 cut at aeb Apparently injectors too apparently... Do you have any idea if this difference can be adjusted in the ecu or i need only to replace the sensor. Any other sensors i need to update (for example the connectors on the knock sensors seem the same but they dont work, also put a new avj lambda and it doesnt work too)? Also not disabling vvt will be an issue? Thank you for this hint |