Quote:
Originally Posted by
DOHCstunr
did you ever replace that fuel pump strainer sock?
yup, replaced that. my old one was filthy...
Quote:
You know there is a way to eliminate the fuel pump o-ring all together?
you cut just above the socket where the fuel pump outlet and oring slide into.
so now there would be just a straight tube on the fuel pump assembly.
Now you just get a 2" piece of fuel hose and clamp it to the pump outlet, and then to the hardline that you just cut.
done. never again will you have fuel pressure drop after you turn off the car.
i've thought about that since the pump started making this new whirring noise last night. IDK wtf this thing is doing, so i want to eliminate as many things as possible
Quote:
Originally Posted by
Blue Ice
I'm kind of thinking about what Kevin said with the wiring of the MAF.
Did you ever change ECU's when going turbo?
Did you do any rewiring of the injection system?
never changed ECUs. i rewired the injector harness to use the resistor pack with the 450cc injectors. since wiring it back to the oem injectors, i've resoldered the harness straight to the clips, oem setup.
Quote:
I feel the problem lies somewhere in the ECU telling the Injectors to open up more for the air that it is reading. Possibly you may have a faulty MAF that is causing the sensors to read less air than you actually have. Maybe you can get a replacement MAF form a JY just to see.
already got a MAF from another 7G at the junk yard, using it atm.
Quote:
Or yyou could have a leak in your intake system that is post MAF. What type of intake pipe are you using? Does it have any holes that aren't hooked into the system that might be sucking in air? Are there any cuts in the couplers? Do you have a good seal where the intake pipe meets the throttle body? Throttle body to intake Mani sealed perfectly? How about Mani to the block? Did you get all the bolts in? Maybe do a leak test?
oem intake pipe. no holes, i've checked it a million times. the seal at the TB is foreskin tight. TB to intake mani has a brand new OEM gasket. mani to block has brand new OEM gasket.
leak test is a good idea.........
Quote:
Are most of the intake parts the same as when you were boosted? It's Possible you damaged something minor while you were boosting. The leak was so small, you could adjust for it with the AFC2, and now that you don't have a managament system, the regular ecu won't compensate.
all that i used when i was turbo was the maf, everything else was different and since has been removed or replaced.
thanks for all the advice everyone, i feel like i'm real close to getting this fixed, keep the ideas comin'.....