1) the sealant on the AFM cover should have an original bead of clear sealant around the edge. If the tension is set too tight, it can create that extreme lean spot on top
2 & 3) How was the O2 sensor implemented into your car if any? The O2 sensor is only active at part throttle below 4800 rpm, and ignored at full throttle. Euro/ROW cars do not have DMEs and harness wiring for an O2 sensor. Your dyno shows your AFRs averaging at 14.7 from 2500 to 4800 rpm, indicating the car has the O2 active - which happens either if the full throttle switch is not activating, or full throttle is not being achieved. You need to have someone press down on the gas pedal fully, while verifying the WOT switch is activating, and you are achieving full opening at the throttle body.
Quote:
Originally Posted by flyingplatypus
1) The black cover on the bottom of it? It doesn't look like it has been tampered with.
2) The entire DME was replaced with a US dme when the original burnt out. Wiring harness was replaced too.
3) I checked at the switch and it is working. Would it be possible the signal is not getting to the DME?
4) It is set in the counter-clockwise position
5) Is there something that could affect fuel pressure under load but not during the regular test?
Thanks!
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