MK5 Golf GTI

All Things Mk5 => How to Guides / Troubleshooting => Topic started by: zet on July 26, 2011, 09:03:43 pm

Title: 170bhp 2.0 tdi - loss in power.
Post by: zet on July 26, 2011, 09:03:43 pm

Hi all,

as the title suggests I'm experiencing a loss in power.  However, no lights/warning on the dash are on.  It is most noticeable in gear 1 and 2 (taking longer and higher revs to reach faster speeds).

any ideas?

Title: Re: 170bhp 2.0 tdi - loss in power.
Post by: PDT on July 27, 2011, 06:06:07 pm

faulty throttle body, EGR sticking, need to log it and do some output tests really.

Title: Re: 170bhp 2.0 tdi - loss in power.
Post by: vRS_Pagey on July 31, 2011, 07:33:08 pm

Could it be the injectors?  I've heard they are prone to problems.

Title: Re: 170bhp 2.0 tdi - loss in power.
Post by: GazB on July 31, 2011, 08:39:18 pm

guy I work with had faulty injectors on his 170 - replaced on warranty by VW

Title: Re: 170bhp 2.0 tdi - loss in power.
Post by: vRS_Pagey on August 01, 2011, 07:39:36 am

If it is the injectors, it may be worth having a read through this -
http://briskoda.net/forums/topic/197422-vag-170-ps-diesel-injector-failures-vosa-action/page__hl__vosa

Title: Re: 170bhp 2.0 tdi - loss in power.
Post by: Steve Baker on August 01, 2011, 09:13:49 am

Turbo boost leak ?

Title: Re: 170bhp 2.0 tdi - loss in power.
Post by: zet on August 13, 2011, 05:13:58 pm

I'll be checking today to see if its a leaky boost.  If not, then see if I can get a VAGCOM connected up and have a full scan done.

Title: Re: 170bhp 2.0 tdi - loss in power.
Post by: PDT on August 13, 2011, 05:20:48 pm

Log the EGR and boost blocks, afm block and injection block

Title: Re: 170bhp 2.0 tdi - loss in power.
Post by: DamoP on August 14, 2011, 01:27:29 pm

i had this on my just before the turbo went. is it like driving with no boost??

Title: Re: 170bhp 2.0 tdi - loss in power.
Post by: mortygttdi on August 14, 2011, 10:16:09 pm

After I had my new turbo on I had a boost pipe that had split, the small one coming out of the turbo at the bottom. no lights on the day and no boost,

Darren