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        General >> Problems >> 2.5td black smoke and low mpg
        
(Message started by: the_professor on Aug 20^th, 2006, 1:53pm)

Title: 2.5td black smoke and low mpg
Post by the_professor on Aug 20^th, 2006, 1:53pm

I have a 96 2.5 td estate

I have a problem that on acc it heavy black smokes.
There is plenty of turbo boost.
Then as if by magic i lose power and it stops smoking.
( not a turbo problem its been checked )

I have tryied to get fault codes but the reader i have wont connect to the ecu. A colegue with a snap on obd2 reader got the code of 1503 ( aux speed sensor ) but where the hell is that ?

any advice would be appreciated

Title: Re: 2.5td black smoke and low mpg
Post by allenjames on Aug 20^th, 2006, 3:28pm

Split turbo hose ?

Title: Re: 2.5td black smoke and low mpg
Post by the_professor on Aug 20^th, 2006, 8:01pm

Im Presuming that you mean the 'Pleated' one on the inlet side. This seems to be ok

Title: Re: 2.5td black smoke and low mpg
Post by hellblue on Aug 20^th, 2006, 8:12pm

Check that the EGR valve is working, see todays advice page.

Title: Re: 2.5td black smoke and low mpg
Post by mazzy_j on Aug 21^st, 2006, 8:13am

The speed sensor aka the VSS is found on the gearbox.

Have you checked the air filter to see if its blocked? As mentioned above check that the egr isn't stuck in the 'open' position.

Matt