vw golf 02 plate tdi - vw golf loss of power

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Tue 16 Mar 2010 21:02
vw golf 02 plate tdi - vw golf loss of power - bobb1974

my friends golf has lost all power like as if the turbo is not working, Ive read on forums that by switching ignition on and off it resolves problem only for it to happen again but my friends golf has a perminent loss. Also fuel consumption is up , only getting 30mpg, and engine managment light not on but have had it diagnostic check and the error codes are 17675 and 17668. Garage says could be injectors or even new cam needed. Just wondering if anybody has had simular problem which could be an easier fix. I suggested maf sensor to him but im no mechanic and how do u test a maf sensor?

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Wed 17 Mar 2010 18:01
vw golf 02 plate tdi - vw golf loss of power - Cef 30

The codes you have quoted don't seem to be right. The diagnostic check should have brought up the MAF sensor. im no specialist but it could be the EGR valve but once again that should have come up on the diagnostic check. I don't think it could be the injectors.

Sorry couldn't be more help.

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Thu 18 Mar 2010 14:50
vw golf 02 plate tdi - vw golf loss of power - bobb1974

thanks for any response.

the codes 17675 valve for pump injection cylinder 3; limit exceeded

17668 valve for pump injection cylinder 1; implausible signal

to me if the injectors were at fault then i would expect misfire and excessive smoke from exhaust but he doesn't have these symptoms. He does say that he feels a stutter on idle but not when revving the car, just no power like there is bo turbo. Will check the egr valve as ive had probs with that one on my own mondeo.

if anybody else out there got any ideas then i would be greatfull

thanks

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Thu 18 Mar 2010 17:36
vw golf 02 plate tdi - vw golf loss of power - dieselnut

Try disconnecting the plug to the MAF sensor & see if performance is improved.

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Fri 19 Mar 2010 15:03
vw golf 02 plate tdi - vw golf loss of power - bobb1974

thanks for the response dieselnut

disconnected maf sensor and there is no dip or improvement in engine running or power when taking it for a spin, its just the same????

should i expect any diffrerence

thanks again

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If you cover no more than 100 miles per day and have easy access to a charging point at home or work, then an EV is ideal for you.

Is an electric car right for me?