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Re: P2178 Fuel trim rich during cruising, turbo question?
Posted to Technical Discussion Forum on 9/18/2012

If you look at the freeze frame data it just doesn't quite "add-up". Load is shown as 99%; but rpm, APP, & TPS don't support a heavy eng load condition (unless the driver was lugging the eng up a steep grade with a manual trans- even then I'd expect higher TPS... Login to read more.