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Ah the joy of wire faults. As you know, check that the all the connectors actually make a connection with in the connector. That has got me a few times. Then the joy of wire wiggling to find the faulty wire.
lynx-
Thanks. Got my electrical connector tool kit, various dental pokey things, tiny file, contact solvent, vaseline, torch, multi meter with needles for piggy backing off stuff.
Should really buy an oscilloscope.
Gut feeling is iat/maf/one of the two map sensors and playing up, or the power supply to them isn't smooth so they are dropping out briefly, not enough to trigger an eml, but enough to play havoc.
Need more beer.
BrickMan
Ah crossland are total junk, well now!
On other end wix are excellent and think napa gold (napa is like usas ecp, and gold is their top line) are also good.
Mercedes is misbehaving again in new and unpredictable ways. It keeps generating egr flow and turbo boost issues, egr motor and entire system is dead clean and it moves very easily, turbo is new and adjusted the actuator on a star computer to get it in range. Suspect ive got a bad signal wire in the harness, as honestly one day it works great the next its shitting all over the the bed again.
Ready to just set it on fire tbh now, such a problem child that car.