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Engine Specific Info and Questions => TDI Engine -General Info => Topic started by: oldskool rich on October 07, 2009, 06:13:00 am

Title: anyone know what an ALH should be timed to?
Post by: oldskool rich on October 07, 2009, 06:13:00 am

is it gona be 1mm? or isnt it important because of the knock sensor?

Title: Re: anyone know what an ALH should be timed to?
Post by: diesel smoke on October 07, 2009, 06:29:43 pm

ALH timing is set with VAG-COM. And there isn't a knock sensor either.

Title: Re: anyone know what an ALH should be timed to?
Post by: oldskool rich on October 07, 2009, 06:35:58 pm

whats the 3rd injector about then? the pump piston must be at a certain depth at TDC does anyone know what it is? what is it on a 1Z? its probly the same

Title: Re: anyone know what an ALH should be timed to?
Post by: Vincent Waldon on October 07, 2009, 06:41:51 pm

Quote from: oldskool rich on October 07, 2009, 06:35:58 pm

whats the 3rd injector about then?

It's a needle lift sensor that tells the computer when start of injection has occurred, which is fed back to the ECU as one of the many feedback loops.

As far as I know there's no published piston depth at TDC... best bet is to find someone with VAG COM and do er right.

Title: Re: anyone know what an ALH should be timed to?
Post by: diesel smoke on October 07, 2009, 07:08:21 pm

^^^ What he said.

OH! Vince, I need to return your tools! I'm forgetful sometimes... :-[

Title: Re: anyone know what an ALH should be timed to?
Post by: G60ING on October 09, 2009, 03:30:24 pm

Quote

best bet is to find someone with VAG COM and do er right.

I agree 100%