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05 avalanche (giving me a headache)

Jmtp

New Member
Joined
Apr 2, 2021
Messages
1
I have a recently purchased 05 Avalanche with the 5-3 in it and I'm wondering if anybody's had similar issues and might be able to direct me towards the culprit I have 7 codes in total 1for the cam positioning sensor 1 for trans fluid pressure sensor 1 for 02 sensor bank 1 and also throwing knock sensor codes intermittently, the other codes are just one form of another in relation to 02 sensor oh, I've changed all sensors mentioned above damn, and I'm leaning towards possibly having a failing ECU. All the grounds appear to be in good shape. The truck runs and drives does not always start on first go-around oh, and I'm getting an intermittent transmission slippage due to this sensor. If someone could please help I'd greatly appreciate it thank you.
 
What are actual codes?
P????
 
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