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Model specific boards => Golf mk4 => Topic started by: reedy20vturbo on 18 July 2014, 18:32

Title: Aum n75
Post by: reedy20vturbo on 18 July 2014, 18:32

Hello,

Just a quick one, I'm getting random big boost surges,  sometimes feels like youve caught the break by accident as you pull away if you get what I mean?when it does this you can hear it give a massive dump too, Some times the car pulls very well and other times its slow then half way through the revs it'll suddenly gain power like someone is flicking a switch if you get what I mean? I have replaced maf sensor and checked all hoses and I'm starting to think n75 valve. Is there a way I can test it or disconnect it to see if it makes a difference? No fault codes by the way. Cheers

Title: Re: Aum n75
Post by: MoMartin on 19 July 2014, 01:17

found this online -

Quote

TESTING

Pull connector (1) off N75 valve (2)
Use a multimeter to measure resistance between valve contacts 2.
Spec ACV AJT AYC AYY = 25 to 45Ω
Spec AHY AXG AXL = 15 to 20Ω
Replace valve If spec not attained

If spec attained...
Switch on ignition and measure supply voltage at connector plug 1 and engine earth
Spec approx 12v. If spec not attained check wiring back to ECU.

Scrap that... just realised its for vw t4 / t5, so the readings will be different.

Title: Re: Aum n75
Post by: reedy20vturbo on 19 July 2014, 07:46

That's amright mate, thanks anyway still stuck though :)

Title: Re: Aum n75
Post by: Tezmax on 19 July 2014, 10:51

Had similar issues with mine so bought Nino's spare one but didn't cure it.
If you cant test or borrow one then i'll post you mine. (£15 if it works  :drool:)
Send it back if it dont :smiley:

Title: Re: Aum n75
Post by: reedy20vturbo on 19 July 2014, 19:27

Yeah mate that'll be ideal, I'll message you my address if you give me your PayPal I'll drop you some money for postage cheers mate really appreciate it