Hi , I've just bought a 2000 1.8T 150bhp
The idle was a little rough so I filled up and stuck some redex in hoping it would help but seems to have just got worse.
It jumps a lot when it idles , especially when cold, and it's really jerky in low revs or when changing down gears.
I scanned it with VDSC and came up with
4 Faults Found:
17608 - Boost Pressure Control Valve (N249): Mechanical Malfunction
P1200 - 35-00 - -
17705 - Shareware Version. To Decode all DTCs
P1297 - 35-00 - Please Register/Activate
16395 - Shareware Version. To Decode all DTCs
P0011 - 35-10 - Please Register/Activate - Intermittent
17545 - Fuel Trim: Bank 1 (Add): System too Rich
P1137 - 35-10 - - - Intermittent
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Cleared them and drove it for a couple days and scanned it again and it came back with
4 Faults Found:
17608 - Boost Pressure Control Valve (N249): Mechanical Malfunction
P1200 - 35-00 - -
17705 - Shareware Version. To Decode all DTCs
P1297 - 35-10 - Please Register/Activate - Intermittent
17545 - Shareware Version. To Decode all DTCs
P1137 - 35-10 - Please Register/Activate - Intermittent
16486 - Mass Air Flow Sensor (G70): Signal too Low
P0102 - 35-10 - - - Intermittent
Now I did unplug the maf and drive it for a little bit to see if it made it any better, it didn't , if anything it was worse.
I'm guessing that's why it threw up the 16486 code though.
I'm going to change the fuel filter, and have a scan through the web with the codes but if anyone has had any previous / similar issues and could give me a few places to start they would be much appreciated
Also, the coolant is not purple, it's blue so not g12. It doesn't look brown/sludgy though so is this ok or should I change it to G12?
Many thanks
