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Mastermind

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Turns out it wasn't the O2 sensor. It's worse. The ECU has gone flaky on controlling the fuel pump. I wired the pump up to to key control, and all is well. This is after spending hours cleaning grounds, checking connections, testing relays, and cleaning the fuel filter.
 

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Turns out it wasn't the O2 sensor. It's worse. The ECU has gone flaky on controlling the fuel pump. I wired the pump up to to key control, and all is well. This is after spending hours cleaning grounds, checking connections, testing relays, and cleaning the fuel filter.
Makes you want to run out and replace everything with an electric device and a computer chip brain.
 
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