Stunning Bmw M3 v8 420Bhp in for slight missfire/spluttering.
We were presented with the excellent example of M3 in for a diagnostic assessment. When checking fault codes we found P2B15 throttle actuator 1 fault. Carrying out further diagnosis using correct wiring diagram and diagnostic approach we ruled out engine ecu fault and wiring fault.
we traced the fault to Throttle actuator. Dealer wanted in excess of £1500 for the repair!!!!! We have a cost effective solution for these with warranty.