What is your question?
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What is your question?
1993 deville 4.9L . cleaned EGR tubes and TB
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p0145 is oxygen sensor fault bank 1 sensor 3. p2507 ECM/Pcm power input signal low. Fix the first one by replacing the oxygen sensor at bank 1 sensor 3. Second is low voltage issue coming into the unit need to find out where the power loss is.