kellyf Posted March 19, 2015 Share Posted March 19, 2015 My question is if you have this code can it also cause contribution codes.i have number3 and number 7,but see no issues when performing thepinpoint test.Also I think I have verified the fuel rail pressure sensor is faulty by tapping on the sensor while observing the voltage on the sensor whack around.Do you guys replace the harness that goes to the sensor also when doing this repair? Quote Link to comment Share on other sites More sharing options...
Matt Saunoras Posted March 19, 2015 Share Posted March 19, 2015 I had one of these not long ago. P120F and 2 contribution codes but ran okay otherwise. Had metal in the fuel and a rusty sending unit. The FRP is probably getting contaminated edit - to elaborate further I did wind up selling a fuel system on it and the truck has been fine ever since. I always change the under cover harnesses too Quote Link to comment Share on other sites More sharing options...
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