Conditions For Setting DTC

2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Conditions For Setting DTC
WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

PCM detects that HO2S 2 voltage remains within 150 mV of the bias voltage about 450 mV for a longer amount of time. The amount of time ranges between 100-130 seconds depending on ECT at start-up and average Mass Airflow (MAF) since start-up.

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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  • β€’ You are not confident in the next step or safety outcome.