stevie2.7TM

For DTC:
17956 p1548 Boost Pressure Regulation Valve (N75) Open Circuit.

The N75 valve was bad (I had checked the wiring with a voltmeter first). I replaced it and this DTC went away. (Thanks nyc.turbo)

For DTCs

17547 p1139 Long Term Fuel Trim Add. Bank 2 system too rich

17545 p1137 Long Term Fuel Trim Add. Bank 1 system too rich

I disconnected the connector from the MAF and cleared out my DTCs. After driving it like this for a couple of days the only DTC that showed up was "16486 MAF Sensor (G70): signal too low". No more system to rich DTCs. So I replaced the MAF and cleared out my DTC and everything has been great for the last 2 days.

Steve
2000 Audi A6 2.7TM
1986 Porsche 951 (944 turbo) Autothority Stage II

QCRAZY

Steve,

What boost does your 944T make??

I just bought a 944T S that I'm going to make into a track car. Looking into tuning options. I've seen one place that said the headgaskets can't take over 1.0bar, which I doubt. Comments??

Any turners/mods you would recommend I look into?

TIA!

JimR

And illustrates once again that a VAG-COM is a required accessory for anyone who gets beyond the oil change level of working on these cars.