Quote:
Originally Posted by USA-RET
My guess is that the car's original ECU programing is sensing something askew w/ the piggyback tunes. May not be a major error, but enough to throw a CEL.
Dialing back the piggyback eliminates that with the .v2.
If Dinan goes w/ a Stage 2, it will likely a flash tune (as any increase to the piggy-back tune would likely cause errors). Flashing the ECU would eliminate any mis-reads or errors since the ECU would be completely changed to the new mapping.
just guessing here, but I believe the B58 has plenty of upward "wiggle-room" for performance. New Z4 specs seem to show that.
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Look forward to hearing you impressions on the V2.
Any idea if the B58 in the Z4 is mechanically identical to the B58 in the M240?
Pat