Sup guys, i'm currently breaking in my new baby. CP 11:1 pistons, Brian Crower stg2 cams, valvetrain, camgears, FPR, Skunk2 IM, AEM CAI, Hytech header and exhaust, DSM 450cc Injectors scaled down, obd2 to obd1 conversion.... After a street tune from the tuner my car wouldn't start once i arrived home, so i checked the main relay and pump and found out that my pump died. I can get a Walbro 255 LPH for half the price of an oem replacement pump. Will the 255 LPH be an overkill with my setup?? Also, should i get the car retuned after the pump change for the break-in, i dont want to run rich for the break in. I'm guessing i'll just have to set my fuel pressure to the same as when i got it tuned (43 psi)?? Thanks guys

 

it won't be overkill. you can always use an adj. fpr and turn it down if you have to. http://www.xenocron.com/xenocron-255...ump-p-148.html its cheaper than a walbro.

 

Hey guys, i went home for lunch and checked my under hood fuse box and noticed that the FI-EM fuse (15A) is fried. I'm happy if thats only the problem, but what could of done that?? a bad ground maybe?

 

replaced the fuse and 20 minutes later, same thing. i know that fuse is conected to the battery on one side and to the fuel main relay on the other side. Was the hell could make it short?? I tested the relay and its working properly

 

anyone??

 

ok, i've removed the fuse and checked the voltage at the fuse and i get 12V, which i presume is correct because the system is hot at all time right. I unplugged the ground terminal of the battery and checked for voltage between the battery pole and the the cable and i get 12V (i've seen on Scotty Kilmer video that this means their is a short, so i unplugged the fuses one by one under the hood fuse box and there was still 12V) does that mean their is a short in the circuit, or could it be my alarm system or whatever?? i've checked the thermostat, tranny and valve cover ground and they are all good.

Second thing, i've bought a resistor box and checked the resistance between the power input and the output and i got 6ohms everywhere. The resistors i bought were 10 ohms 10watts and they cost me 35 cents each. Could the fact that the resistor box is 6ohms mean i should get 6ohms resistors? I got 10.6 ohms reading between 3 of the injector clips and 10.2 for the fourth one.

Third and final thing, is that i've put the key to ign2 to prime the fuel pump and seen that it rises to 43psi and slowly decreases (i have a small leak). Could that be creating the short since the pump tries to constantly keep the system at 43psi and since there is a leak it as to pump more so it heats the system??

Thanks for your help guys

 

fixed the problem, i've switch my resistors for a stock resistor box. its working great so far, i'll just have to adjust the idle