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Model specific boards => Golf mk4 => Topic started by: 1.8Tgolf_Chris on 28 March 2015, 10:22

Title: Running sh!ty AUM
Post by: 1.8Tgolf_Chris on 28 March 2015, 10:22

My 1.8t has been running rough for a while now rough idle and getting Intermittent surging, and power loss when u plant it

very rough in the mornings but even when up to temperature still running rough,

My maf was knackered so ive changed that, new spark plugs PFR6Q
My DV is ok iv tested it im wondering should i try changing the n75 valve? and which one for the AUM engine

going to change coolant sensor as ive heard that can cause problems
anything else that causes those symptons
very annoying as before winter the car was absolutely perfect All sorts of things have started going  :angry:

Title: Re: Running sh!ty AUM
Post by: reedy20vturbo on 28 March 2015, 13:32

Plug it in and check for codes, try disconnecting the maff and see if it runs better, I have an aum too and ive had similar problems I've replaced my maf 3 times with genuine ones and they last about a month so I've just left it disconnected and it runs like a dream

Title: Re: Running sh!ty AUM
Post by: 1.8Tgolf_Chris on 28 March 2015, 14:42

Quote from: reedy20vturbo on 28 March 2015, 13:32

Plug it in and check for codes, try disconnecting the maff and see if it runs better, I have an aum too and ive had similar problems I've replaced my maf 3 times with genuine ones and they last about a month so I've just left it disconnected and it runs like a dream

the maf is fine now, i got a 17704 17705 codes, trouble is leaving the maf unplugged it will use more fuel as the air fuel mixture wont be metered?

Title: Re: Running sh!ty AUM
Post by: Wazzzer on 28 March 2015, 14:56

yep you'll have no useful power and use more fuel

Title: Re: Running sh!ty AUM
Post by: 1.8Tgolf_Chris on 28 March 2015, 15:46

Quote from: Wazzzer on 28 March 2015, 14:56

yep you'll have no useful power and use more fuel

What n75 valve will i need wazzer for standard AUM

Title: Re: Running sh!ty AUM
Post by: Wazzzer on 28 March 2015, 17:00

Standard E valve, I'll find a part number for you

Title: Re: Running sh!ty AUM
Post by: reedy20vturbo on 28 March 2015, 21:31

I'm averaging 34mpg and it seems to pull really well, just cant stop eating maf's that's why I leave it disconnected

Title: Re: Running sh!ty AUM
Post by: Wazzzer on 30 March 2015, 10:08

N75 part number is 06A 906 283E

Title: Re: Running sh!ty AUM
Post by: 1.8Tgolf_Chris on 01 April 2015, 17:34

Quote from: Wazzzer on 30 March 2015, 10:08

N75 part number is 06A 906 283E

the one that was on the car had a code ending F, is this just an old version and is replaced by the E? iv already bought an fitted it just realised there different haha :grin:
Car drives massively different it has stopped the surging

Title: Re: Running sh!ty AUM
Post by: Wazzzer on 01 April 2015, 21:41

Yes oddly the E is a newer revision of the F...