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if code 44 is a lean code and 45 is a rich code if both are present suspect faulty o2 sensor if just code 44 check fuel pressure it should never drop below 10psi. then block off the return line from the throttle body. pressure should raise to +18psi. if not replace fuel pump.

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13y ago
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Q: Gm scanner found code 44 on 84 camaro referring to lean exhaust indication what and where is this and how to fix?
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