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Discussion Starter · #5 ·
well the car is na-t, stock ecu,walbro pump. i had a mapecu2 but sold it. before when i first put the turbo kit on with the stock ecu it would run like stock at idle and in vaccuum. now its running lean. even i bypass the charge pipe to the throttle body and put the filter with the MAF as it were to be back to NA it still runs lean. im just at a loss and cant figure it out. i know the car threw a code for the egr like 2 yrs ago but never changed it and it never ran lean. idk if its the egr or what or if vaccuum lines not in the right places can cause this.
 

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Discussion Starter · #7 ·
I have a aftermarket FPR I just didn't want to put it on until I had all my parts for my build. I just don't get why before it ran good with the same setup and now it isn't.
 

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Function over form
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Double check your fuel pump and fuel pump wiring. Make sure everything is good back there and no hoses are leaking fuel back in to the tank. Check for boost leaks as well and get your car to a dyno.
 
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