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how would i check the frp i already tried the stock tune not much better

i have an 02 lb7 i am running no lift pump and about a 150 efi tune Lately my fuel mileage has been dropping and ive been getting greyish smoke. I used to be able to hold 18000 psi or so rail pressure under full throttle now with the tune it will fade to 8000 I put a new fuel filter on didnt...

finally got it running!!!!!!!!!!! he took it to a guy who worked at a local stealership and he worked on it after hours. it ended up being a fried fuse box no idea why it would suddenly do that but hes just happy to have it running now i have an extra licensed ecm to play with

that would be greatly appreciated

not the ignition switch figured out that pin 19 blue conector and pin 44 clear connector are not getting switched voltage like they are supposed to any suggestions i really need a better wiring diagram right now to see where they go because all mine says is ign. switched on both pins

yeah they have no idea but theyre reflashing the ppe right now but we havent made any progress once for a little while he said he had voltage but the next day before i got there to reflash it then we had none again so its got to be a wiring problem so were trying to trace it right now

no the tuner was stuck in the old ecm but since the we have replaced the ecm and i get the same codes

the old ecm did the exact same thing i can read it just fine and none of the files seem corrupted on either

we have tried a jumper and a battery pack. Howwould you do a theft relearn?

idk how would you check that shurely the stealer would have found THAT in all seriousness is there any way to moniter actaul voltage at the ecm with efi btw i can read bothe ecms just fine and the files are not corrupted but the truck has been down for over a week and he is getting...

my friend has an 03 lb7 he was triying to install a ppe tuner and the ecm locked down on him. I tried to reflash it and it would just say after initalizing the bootloader that the ecm voltage was to high or low. He took it to the dealer and they told him the ecm was fried. we repalced it and the...

from the reading that ive been doing it seems 2400 psi is max for a stock cp3? or is that without a lift pump just trying to decide what route to go because i believe mine is on its way out but i really dont want dual pumps (stock internals:boom:stupid money!!!!!!!!) maybe an upgraded cp3...

so even if the commanded frp is much higher you dont think thats going to cause other problems

thats what ive been wondering if it hurts the cp3 or not im beginning to think that mine is weak but i dont get any dtc about the low rail pressure

ive tried changing my filter ill try to post my details soon so do youall think thats out of range for my tune w/o a lift pump or not?

im running a 150 maybe 200ish tune and at wot around 85mph when i get it in 5th gear and locked my commanded frp will be around 27000 and my actuall about 18-19000 with a 100 horse tune its more like 23000 comanded and 18000 actual is a lift pump gonna help that a lot or is my cp3 going for...

gotta love efi live.......... now my allison thats another story for another day..............i dont really want to talk about it yet lol :mad:

hello im from west texas new to this particular site looking to see what i can learn or what little information i can impart to possibly help someone i have a 02 cc sb 4x4 d/a with efi live and hopefully a suncoast stage iv soon:clap2: and a lot of other little mods i have probably forgotten...