I spoke with my mechanic yesterday and he said they had checked the MAF harness along with doing continuity tests of all the wires. They didn't find anything wrong. Could it be a defective new MAF? When the car is idling, it will stay constant at ~800 rpms, and then will briefly dip below ~750rpms. Is this a symptom of what's wrong?

 

Did he check the ignition control module? Could be the map codes are messed up on you computer too

 

maybe try unplugging the battery for a good half hour and then reconnect it and leave the ignition in the on position but without the engine running for like 5 minutes... then start it up... maybe the ecu is having a hard time resetting itself. After that, I would have him check for vacuum leaks.

 

I'll bring up the code mapping with him to see if he has looked in to that. I will also try disconnecting the battery, reconnecting it, and then leaving the the ignition in the on position. I know very little about this stuff, but resetting the ECU doesn't reset the APR software I have installed, does it? They used a smoke machine to check for vacuum leaks, found a couple, and fixed them. Thanks for your help guys, it is much appreciated.

 

as long as they dont "flash" it you should be fine...

 

Has he performed throttle adaptation?

 

16486/P0102/000258 - Mass Air Flow (MAF) (G70): Signal too Low
Possible Symptoms
Probably no serious malfunctions
Loss of power
Possible Causes
Wiring and/or connections (short circuit?)
Mass Air Flow (MAF) (G70) defective
Possible Solutions
Check wiring and connections
Check / Replace Mass Air Flow (MAF) (G70)
Special Notes
In MY 1995-2002 (?) in Europe at VW-diesel-cars G70 had the bad reputation of slowly losing his performance, causing loss of power. It's not a matter of defective or breaking down, but it is filthy / dirty (not easy to clean). You can check functionality by making a log in [01-engine], [meas.blocks-08], group 003 (3e gear, full throttle, from 1700-4000rpm)
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