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Bring it by my shop in Scarborough and I will give you a free engine diagnostic, Without knowing what codes are there it is hard to diagnose although I know of many common problems, such as plugging of the intake with soot and such!
Replacing a MAF is a pretty straight forward thing plug and play, the only recommendation I really have is to clear the adaptions currently set by maybe a bad MAF or a misdiagnosed problem? Did you buy a OEM MAF or aftermarket?
The DM refers to the Daignostic module Code 22 is a faulty cam sensor, 067 refers to the fuel injection module as a faulty cam sensor and as a result 089 the cam solenoid is not adjusting the cam. Hope this helps and Thank you for asking the question
The problem with a question like this is it is loaded with so many probabilities, I would be looking at scantool data, like fuel trim values, coolant temp sensor and even oxygen sensors, before I spent anymore money. I have a good friend in Boulder may be worth the trip!
take it to the local windshield replacement shop and have it looked at for either repair or replacement.
it should be a heatsink looking device on the left fender just below the hood hinge, part number 5U2Z12A297A
Providing your sensors are ok one on the left front and one on the right rear, then you turn the key to on position for 20-30 seconds and it will reset the light
The relay is located on the fuse and relay panel to the left of the steering column, it is a dual relay meaning it performs the functions of the maine relay and the fuel pump relay, the oem part number is 39400SH3003
Evaporative Emmission control system vent control system malfunction, Either the gas cap is leaking, or the tank has a vacuum leak within the emmission system, I would have the system smoke tested by a competant emissions shop.
Turn ignition off and hold the trip odometer reset button, while holding, turn ignition switch on, releaqse the trip reset button and the following message should appear (service in ????? miles or service) Hold the clock adjustment button until message appears saying service in 10000 miles. Otherwise you need to have a VAG access scan tool to reset or change the values in the adaption part of the instrument cluster I hope this helps out Chris Hall