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Re: 2003 Audi TT Quattro Cabrio readiness secondary air
Posted to Technical Discussion Forum on 10/31/2018 6 Replies

Okay, rear O2 shows 70C KOEO, as soon as fired up it drops to 20C. All monitors except secondary air run and pass with ONE test drive. When manually looking at channel for catalyst it also shows temp of 20C!

Getting it back up in air right now to double che... Login to read more.

6 Replies Received (View Replies)