LT5 TB's will throw a code and stumble, I've experienced this with both a stock and ported LT5 TB. My '18 1LE is cammed, ARH LT, MSD Atomic intake, AirAid CAI and tuned. According to my tuner the electronics in the LT5 TB don't speak "nice" with the ECM, it would be nice if it did work on the LT1. I have a Katech ported TB with no problems but I see a Soler in my future. Great if an LT5 TB can be made to work.
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