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2006 Ford E350 5.4L Engine P0208 and P0308 Codes: Diagnosis and Solutions

Model: 2006 E350 Fault Code: P0208 Posted: 2016-01-26 18:23

I own a 2006 Ford E35

Related fault codes

P0208

Comments (3)

Anonymous 2016-01-27 08:17

Check the injector circuit wires (light blue and red/yellow) about an inch to several inches back from the connector for fraying, breaks, or damage. Perform a wiggle test on the wire and connector to identify intermittent faults. A rough idle that improves as the engine warms up is indicative of an intermittent electrical issue.

Anonymous 2016-01-28 22:13

I've inspected the wiring between the injector connector and the main harness, and there's no visible damage. I performed a wiggle test while the system was powered, with no change in readings. The rough running occurs specifically between 60-70 mph; at lower or higher speeds, the engine runs smoothly.

Anonymous 2016-01-29 05:32

P0208 indicates a fault in injector number 8's control circuit. If ignition components were replaced due to P0208, this may be incorrect—since the Powertrain Control Module (PCM) would disable the #8 injector if an ignition issue is detected. To troubleshoot further, use a DC voltmeter and test light with pin probes to check the injector control circuit and PCM driver signals at both the injector connector and the PCM.