This truck has an intermittent MIL.

At start-up, HO2S voltage readings (with Tech 2 scan tool) show normal readings on HO2S in closed loop with engine running at 1200 rpm.

After about 5-10 seconds, the voltage reading on HO2S Bank 1 Sensor 2 (post-converter,...

FIX posted 6/20/1998

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