I'm fitting a m52tub25 from a e46using a e39 loom, I've completed the wiring work and gone to fit and noticed that the sensor plugs are different.
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Sensor plugs differences
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Do you have single vanos m52 or dual. Those sensor plugs at least look like regular single vanos m52 ones. In that case you have wrong wiring harness. The engine you got is m52b25 and the garness is for m52tub25 (dual vanos). Those are not compatible at all.
EDIT or is it other way around that ypu have dual vanos engine but engine harness is for single vanos engine (you can have single vanos m52 in e39. Not in e46)
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