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196 Posts
Discussion Starter · #1 ·
Hey folks.

I recently installed Relentless 3" Dp with their sports cat, after that I've started to seen some fault codes. (Install was PITA, 9 hours of hard work :|)

Sometimes CEL pops on and I see P0170 fuel trim code with Torque app. When I look with Vag-com it shows 17584 - Bank1: O2 (Lambda) Correction Behind Catalyst: Control Limit Reached. Is this same code, Torque just shows something else?

Can this be because of changed downpipe? Could I perhaps get rid of these by installing spacer to rear lambda?

Thanks in advance!

Edit: Forget to tell that Correction behind catalyst pops from time to time, but CEL has came only twice. Does this mean that it doesnt always pop CEL?
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