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P0402 Diagnostic Trouble Code Discussion for December 2018

EGRC-BPT Valve Function


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Trouble Ticket Help Requests for DTC P0402
Help Request Posted
1996 Ford Aerostar XLT 4.0L Incorrect voltage VIN: 1FMDA41X9T
P0402: High EGR flow. ... this, please do not reply. This is a brain bender! This van is continually downshifting during mild acceleration. I checked TPS return signal is high 2.35v closed throttle. The signal does not change with second test TPS. Both TPS's have no dropouts...
December 14, 2018
1996 Ford Aerostar XLT 4.0L Incorrect voltage VIN: 1FMDA41X9T
P0402: High EGR flow. ... this, please do not reply. This is a brain bender! This van is continually downshifting during mild acceleration. I checked TPS return signal is high 2.35v closed throttle. The signal does not change with second test TPS. Both TPS's have no dropouts...
December 19, 2018