BMWAF
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SOLVED: https://www.supramkv.com/threads/ce...ng-for-advice-theories-help.32635/post-505039
Simply put, I am Femto unlocked with MHD running OTS Stage 2 and other than a pesky CEL, everything runs and feels great. Unfortunately, even after I have set MHD to ignore the after market downpipe CEL codes, I continue to get a CEL and the following error codes:
My workshop suggested it is likely to be the 02 sensors so I had them replaced but the CEL and errors persist. Even stranger is that the CEL appears relatively randomly, this last time it appreared on the third drive after a total of about 100kms (since the error was cleared and the 02 sensor replaced).
Also, the other error that has appeared previouly was: 12AF20 - Oxygen sensor after catalytic converter, signal: Fixed at lean in coasting/overrun mode.
For context, I am running a cheap ass MODE Sportscat; AWE Touring resonated aechaust and other than a K&N filter, everything is pretty much stock. The car is just over two years old, has done 20,000km ( 12,000 miles) and has been following the standard Toyota servicing schedule - Last one was just under a month ago. Other than the CEL and these errors the car runs like a dream. I don't beat on it and never really gun it unless she has warmed up.
Our next step is to remove the DP and replace it with a catless DP (or maybe go back to stock) to see if this will solve the problem. While I have always suspected the DP/CAT to be the issue, it doesn't really make much sense to me.
I would really appreciate any advice anyone has about solving this issue as it is driving me nuts.
Has anyone encountered anything like this or have any suggestions as what could be the issue and/or what I can try to solve it? Does this even sound like it could be a faulty DP/CAT? At this point, it's just a process of elimination and unless something is properly fucked in the ECU, surely the DP/CAT is the problem?
Happy to provide more information, etc.
This is seriously doing my head in!
Simply put, I am Femto unlocked with MHD running OTS Stage 2 and other than a pesky CEL, everything runs and feels great. Unfortunately, even after I have set MHD to ignore the after market downpipe CEL codes, I continue to get a CEL and the following error codes:
My workshop suggested it is likely to be the 02 sensors so I had them replaced but the CEL and errors persist. Even stranger is that the CEL appears relatively randomly, this last time it appreared on the third drive after a total of about 100kms (since the error was cleared and the 02 sensor replaced).
Also, the other error that has appeared previouly was: 12AF20 - Oxygen sensor after catalytic converter, signal: Fixed at lean in coasting/overrun mode.
For context, I am running a cheap ass MODE Sportscat; AWE Touring resonated aechaust and other than a K&N filter, everything is pretty much stock. The car is just over two years old, has done 20,000km ( 12,000 miles) and has been following the standard Toyota servicing schedule - Last one was just under a month ago. Other than the CEL and these errors the car runs like a dream. I don't beat on it and never really gun it unless she has warmed up.
Our next step is to remove the DP and replace it with a catless DP (or maybe go back to stock) to see if this will solve the problem. While I have always suspected the DP/CAT to be the issue, it doesn't really make much sense to me.
I would really appreciate any advice anyone has about solving this issue as it is driving me nuts.
Has anyone encountered anything like this or have any suggestions as what could be the issue and/or what I can try to solve it? Does this even sound like it could be a faulty DP/CAT? At this point, it's just a process of elimination and unless something is properly fucked in the ECU, surely the DP/CAT is the problem?
Happy to provide more information, etc.
This is seriously doing my head in!
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