P0478 Diagnostic Trouble Code Discussion for July 2015
Exhaust Backpressure Control Valve Excessive
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| Help Request | Posted | |
| 2000 Ford F-250 Super Duty Lariat 7.3L Low Power VIN: 1FTNX21F8Y P0478: Exhaust Backpressure Control Valve Excessive. I am looking for some reassurance on this one, This truck has low power on accelleration I hook the IDS up and go for a good test drive and found low ICP and low boost readings. I do visual inspection of engine and found y-pipes leaking badly at rear of turbo ... |
July 30, 2015 |
