P1274 Diagnostic Trouble Code Discussion for September 2008
Air Fuel Sensor (Bank 1 Sensor 1) Rich Shift Monitoring
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| Help Request | Posted | |
| 2000 Ford F-450 Super Duty Lariat 7.3L Misfire VIN: 1FDXF47F1Y P1274: Cylinder 4 - High To Low Side Open Detected. ... P1272, P1274, P1294. Followed pinpoint tests, checked continuity from IDM to valve cover connector on high side, and low sides of all injectors. All have continuity. Checked resistance of suspect injectors, have approx 3 ohm... |
September 15, 2008 |
