X5 !!! Change them ASAPQuote:
Originally Posted by Jamest
Printable View
X5 !!! Change them ASAPQuote:
Originally Posted by Jamest
I just did. The plugs in the pics were the stock ones that came out. Didn't help any since I think my injectors may be maxed.
If im not mistaken, our fuel system is not a return style. which has been said to be not as good as the previous return style. I think your starving for fuel on the top end. And Im guessing that the a/f gauge is not reading correctly. You said it does not knock at 8psi? So you could turn down the boost and it would not knock at all? Maybe your running more boost than you thought. I bet you need either a better pump, or injectors and pull some timing.
My wideband may be off since it is knocking but showing low AFR's. My pump should be able to handle a lot more if I'm not mistaken. Injectors, however, may be the weak link. Hopefully, Allen can shed some light on what my IDC's were when I was geting a tune.