Stumble after injector work
- Thread starter Garth
- Start date
Moved to LB7 section. Where did you buy the injectors? What is rail pressure doing during the stumbles? Do you have a scanner or EFILive and can you log the truck when it does?
Last time I checked rail pressure was 26000 wot and all the balance rates were within spec
Need to log rail pressure and injectors DURING one of the stumbles/misfires.
Probably multiple bad injectors, but its a total guess without more info.
Remember, we arent standing there next to you.
Probably multiple bad injectors, but its a total guess without more info.
Remember, we arent standing there next to you.
If there is air trapped in the low side and possibly the ficm or the high side would it make the truck run like shit
It was what I could afford at the time
I believe they were Bosch
What is the history of the truck? Was it running and driving prior to the injector work, or had it been sitting for an extended period of time? I wonder if you have some bad fuel causing problems. I would verify you have good, clean fuel in the tank, and use your scan tool to verify the truck is building proper fuel rail pressure under load. To answer your earlier question, air isn't generally trapped in the low side, but if you have something allowing air to get into the low side, I have seen that cause symptoms similar to what you are describing. In my case, it was the WIF sensor on the bottom of the fuel filter.
Harness connectors at the injectors, the nuts, if loose can do some weird stuff too. Stumbling, misfiring, smoke, etc. and since recent work was done I double check those connections. And make sure none got swapped around to the wrong injector