2002 E53 4.4i - rough idle, surging power.
Original codes pointed to MAF and Throttle Body - replaced both, no difference. Replaced fuel pump, still no good.
I am not getting any codes other than MAF and TB, I have checked for continuity on TB, all wires to the ECM.
I tried to code the TB, but can't seem to do that with Rheingold or DIS with my USB-ODBII cable.
I'm really hoping some kind soul can give me some advise on what to do next. I've been off the road for 2 months now, and am way deep in Mexico, can't find anyone who has experience with BMWs here.
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2002 X5 4.4i sport/NAV/ski - upgrades: electrochromatic mirror, aluminium pedals, tinted front windows, 20" rims, //M wheel w/ paddle shifters, CarPC (CarX)
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