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Engine light came on - listed two codes

by Jon
(Pittsburgh, PA)

My 97 corvette engine light came on and showed two error codes.

PCM - P0135 HC
PCM - P0155 C

What do these codes mean and what should I do?

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Jun 07, 2011
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by: Corvette web central

P0135 Heated Oxygen Sensor (HO2S) Heater Circuit Bank 1 Sensor 1

P0155 Heated Oxygen Sensor (HO2S) Heater Circuit Bank 2 Sensor 1

The "H" means History
The "C" means Current

Try resetting the codes!
More info here
https://www.corvette-web-central.com/C5DTCcode.html

If you still have the codes you may have a problem with both of your front O2 Sensors heating circuit. Which would require replacement. You should go to the dealer to verify this!

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