OPF Delete update and question

[Rupert]

So I've been running a stainless OPF delete mid section with an Akrapovic silencer, without any coding or delete box, for 2 years and 12000 km without an engine check light. Then last weekend I filled up with 95 for the first time ever because there was no 98, half a tank later the check light came on. Could this be coincidence or could the higher octane fuel help to keep the check light at bay?

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[itzTang]

So I've been running a stainless OPF delete mid section with an Akrapovic silencer, without any coding or delete box, for 2 years and 12000 km without an engine check light. Then last weekend I filled up with 95 for the first time ever because there was no 98, half a tank later the check light came on. Could this be coincidence or could the higher octane fuel help to keep the check light at bay?

pull the code dont guess. dont you guys only have sensors before and after the cat?

 

[Eplejus]

pull the code dont guess. dont you guys only have sensors before and after the cat?

That's correct. We have an extra line right after the cat on the downpipe that connect's to a back pressure sensor located on the valve cover. Only found on EU and in some asian countries AFAIK.

 

[itzTang]

That's correct. We have an extra line right after the cat on the downpipe that connect's to a back pressure sensor located on the valve cover. Only found on EU and in some asian countries AFAIK.

so deleting everything after that line would not cause any CEL

 

[Eplejus]

so deleting everything after that line would not cause any CEL

Deleting the OPF normaly causes CEL, as the back pressure would be out of normal reading range.
It's easy to disable in MHD/BM3/Ecutek. But for people still running stock DME tune, a "OPF delete harness" is an option. It's basically just a small harness piece with a resistor to fool the sensor reading.

 

[itzTang]

Deleting the OPF normaly causes CEL, as the back pressure would be out of normal reading range.
It's easy to disable in MHD/BM3/Ecutek. But for people still running stock DME tune, a "OPF delete harness" is an option. It's basically just a small harness piece with a resistor to fool the sensor reading.

Ahhhh lame stuff lol

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