Gm 5.3l P0172 P0420

Posted on 05 Jul 2024

Part 1 -how to test trouble code p0420 (gm 3.8l) P0172 code chevy silverado P0420 code trouble 8l gm test catalyst efficiency bank threshold below encountered codes obd common ii most

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Chevrolet silveradoError code p0172 and p0175 with cel on, stays on, 2010 camaro ss, i had 2012 gm truck 5.3 p0172, p0175 running rich on both banksPart 1 -troubleshooting p0172 and p0175 (gm 4.3l, 5.0l, 5.7l).

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