bad fuel pressure 20-25 psi
#1
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I got a flat and had to put spare on was running 19' rims. So put spare on front right, I bottomed out while making a turn into a restaurant, came out, backed up car died, after about 20min I got it to start, drove home about 2 mi, was backfiring out of intake it was running super lean about 20-25 psi, I looked under car didn't see any scrapped wires are scuffs on anything, so i figured the jolt took out FP, so i put on a walbro 255 and hotwire kit, its real spotty, fuel pressure good exept under load, i've done everything I can think of, leak down on injectors all good put on new fpr, new filter, checked fuel rails injectors fpr 4 times all good checked voltage at fp about 14v. out of ideas!!!
It is a 96 Camaro z28, just put a new motor in about 1 yr ago, cam, heads, headers, underdive pulley, custom tune
It is a 96 Camaro z28, just put a new motor in about 1 yr ago, cam, heads, headers, underdive pulley, custom tune
#2
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If everything is checking out the only things it could be are Bad Fuel Flow! Either the pump cant pump enough fuel to keep up with demand or you have a restriction in the Tank Screen or Fuel Lines! Look for some damaged fuel lines that run from the tank to the engine compartment!
#5
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around 42 idle jumps to about 46-48 WOT when i replaced the fpr i went with adjustable, it doenst hold after prime but i swapped it back and forth with stock, every once in awhile at idle it will drop to about 25psi but just for a sec i cant get a volt meter on it quick enough, even under load it will be ok then it drops and boom out the intake, i dont want to run it to much more scared engine will crap out, all the fuel lines run up the drivers side and it definately hit on pass side but i will double check fuel lines again tomorrow.
Sorry for run ons grammer no bueno
Sorry for run ons grammer no bueno