Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
Well first of all IAM New to your premium subscription my Nick name is Mudd I have a. 2005 Tahoe which is running shitty I changed the Fuel pump it was a Delphi that I put in 5 years ago but up to a couple years ago I started banging on the tank and it would work for 6 months. Then I could not drive it because it was backfiring no power took a fuel pressure reading and was 50 at turn on And would drop down to 42 I already knew the pump was bad because I was giving me problems so I replaced it now I have 58lb of pressure. Then I had an no start would Crank through had 1626 code which was hard to diagnose because scanner wasn't working at the time I don't know if there was a short in my door but every time I slam the door I could read the codes so I got it and reprogram the ignition switch which now runs but it's like in limp mode I can't get no power out of it I trim levels are off the chart short-term fuel trim is 50 long-term is 25 on both Banks I rev it up it doesn't change before I changed the Fuel pump Left Bank was high I checked for vacuum leaks I put new O2 sensors in it truck has 300,000 miles on it but was running prior to all this happening it ran fairly well so I don't think it's nothing mechanical didn't answer many miles are going to change the injectors in it and I'll let you know what happens I clean the mass flow if you got anything you could add to this be highly grateful thank you Muddhammer
Topic Author
