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Hi guys i have 2007.5 1500 5.3 i did a dod delete and have all the parameters associated off. Ive had a rough idle and from time to time either bank 1 to lean or both cats below efficiency. My buddy had his scanner attached and we were shutting off the dod associated cylinder injectors and the truck didnt hesitate. Were wondering if my fuel tables are off? Some help please.
Attachment 143337
Post the tune file. IF the DOD isn't turned off correctly it will run bad. Did you swap cams when you did the DOD delete?
Attachment 143376Quote:
Originally Posted by WuMushuCuh
My bad i think i posted the log ill post the tune rn. And yes i did the whole swapQuote:
Originally Posted by bk2life
I just attached the tuneQuote:
Originally Posted by Alvin
What cam did you put in it and why did you delete 0300.
A log might be helpful
I put in a enginetech afm delete kit, turned off p0300 cuz it was annoying me and i posted the log on my first postQuote:
Originally Posted by Alvin
Both banks look like shit but bank 1 really looks like it has multiple dead soldiers. I'd pull the valve cover and inspect the work you've done. From there its typical cylinder miss diagnosis. This is something you can toon out. Put the laptop down and figure out why you have what looks like multiple dead cylinders.
Just to be clear, he meant to say "this is something you Can't toon out".Quote:
Originally Posted by edcmat-l1
When i had my heads resurfaced they checked all the valves, seals and springs. What do you think i should be looking for? Compression test?Quote:
Originally Posted by edcmat-l1
OOPS! You are correct sir.Quote:
Originally Posted by gtstorey
I figured i couldnt tune this out. You think it might be the injectors? When we shut the dod ones off the truck didnt hesitate like the non dod cylinders did so we thought it might be a fuel trim issue. If i pulled the valve covers off again what am i looking for?Quote:
Originally Posted by edcmat-l1
Check all your rocker arms and make sure they're not loose or binding. Remove them and check the push rods to make sure something didn't get bent. Visually inspect everything and then reinstall and torque to spec. When all that is verified then move on to misfire diagnosis. Perform an injector balance test, compression test, and anything else applicable to the situation.
Also, what lifters did you install? quality brand? do you have a part number?
I got the ls7 liftersQuote:
Originally Posted by horsepowerguru427