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Old 05-15-2015, 04:24 PM   #5
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Join Date: Sep 2012

It sounds like a sensor failure or bad connection to a sensor or an AFR gauge failure . Being this rich is the same as full "rich" that I saw when a pin in the ECU temp sensor connector lost contact with the sensor and created an open circuit.
The result was an engine that would "flood out" at 3500 + RPM them pop and bang/miss. Fixed the connector and everything was back to normal.

Last edited by dkrause; 05-15-2015 at 04:37 PM.. Reason: thought typo
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