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View Full Version : Injector or EFI Issue...or both?



TNRGreene
January 19th, 2013, 02:26 PM
Thursday night finished up the truck for the weekend, there was NO engine/tuning/electric touched since it pulled last weekend it ran GREAT
This morning we back the pull truck off the carport to put it on the trailer to go pulling tonight. Ran fine but didn't load this am as I got side tracked with a customers truck. Go to load it at 2pm. bad white smoke & missing. Scanned the injectors & they were.
1 -.83
2 6.25
3 -2.50
4 1.4
5 6.25
6 6.25
7 6.25
8 15.00
Changed #8 & it's still 15.00 The 6.25's are now 7.00 pull the fpr plug and rail goes to 26k & #2 starts working, reading 1.6 plug it in it just goes up & locks
The "locked" ones do not bounce like the others do in efi live
Monday night I scanned & the worst was 2.0 Seems to have shit today. Any ideas? tried all fresh fuel & then seafoam. Tried different ficm, tune, ice pick & seems to be returning about the same amount of fuel to the fuel cell as always

WisconsinHick1
January 20th, 2013, 04:48 PM
How big are the injectors or are they stock?

THEFERMANATOR
January 21st, 2013, 01:22 PM
If this is an LLY, get a tECH 2 to scan it as ther have been issues with balance rates and injector kill requests not going to the right cylinder.

TNRGreene
January 21st, 2013, 03:11 PM
100 overs & I've just been reading about the not being correct

WisconsinHick1
January 21st, 2013, 03:40 PM
I also have a miss issue when first starting of my truck with 100 injectors. I let ot warm up some and its good to go. I had to increase rail pressure and play with timing a little to help the truck atomize the fuel better.

TNRGreene
January 22nd, 2013, 12:40 AM
Mine has been ok for 2 years & this happened all of a sudden

WisconsinHick1
January 23rd, 2013, 08:32 AM
i wouldn't suspect tuning then if it's been the same setup for 2 years.