Jake : Hi there
Jake : generally the injector pulse is only cut if there is no key recognition
Jake : or no crank position signal
Jake : But why they would work at higher RPM's and not at idle doesn't make much sense
Could it be a faulty computer?
Jake : Are you still getting a TPS signal at idle?
Jake : Generally if the ECM was at fault they wouldn't get a ground pulse at all
Jake : so probably not the ECM
I can see it on the scan tool. Sensor 1 = .38mv and sensor2 = 0.76mv
I have compared all of the scan tool data with a know good van and all parameters are the same except the battery voltage and fuel pressure.
Could this be a ground issue?
The battery is good and charging system ok.
Jake : Hmm that's peculiar indeed. Did you try bleeding the fuel system just in case?
But I have driven it for miles
However I was thinking of doing that
Jake : It might be an issue with the fuel pressure sensor causing the ECM to cut injector pulse.
Jake : If pressure readings are the only thing off at this point
Jake : Try bleeding it off, to see if that helps.
How is that done?
Jake : You can do it by moving the priming pump up and down, or removing the feed line and operating the electric pump