p1206 , replaced injector and overlayed harness

Dane M · May 26, 2023

have a 2011 f250 97000 miles keeps throwing p1206, will run ok then get on it hard when taking off and it will kill the whole bank of injectors 1,4,6,7 and have a code for injector 6 continuos memory. cut the key off and restart it will run fine. koer test it will pass even when the whole bank of injectors is shut down. is the pcm a possible cause? I have replaced the injector and overlayed the wiring. relative compression also shows good.

8WA Sman · May 29, 2023

PCM would not be high on my list. I would be inspecting the fuel system for contamination or testing the remaining injectors with an isolation meter.

forddieseldoctor · May 29, 2023

Curiosity what is an isolation meter? I am not familiar with that term.

lmorris · May 30, 2023

The Isolation Meter detects insulation resistance up to max. 8 GΩ (with auxiliary voltages of 250, 500 and 1000V). In addition, this Isolation Meter offers a measuring function for DC and AC voltages up to max. 950V DC and 700V AC as well as resistors up to max.

batmantech · May 31, 2023

Did you ohm check all injectors on the bank that is missing? PPT P2 check them after driving and its missing. Easily done at the PCM connector. I had one that only failed the ohm check after driving it.