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Model specific boards => Golf mk4 => Topic started by: shaft69 on 13 August 2012, 23:20

Title: k04-22/023
Post by: shaft69 on 13 August 2012, 23:20

What difference between k04-022and 023?? Please.

Title: Re: k04-22/023
Post by: Prawny on 14 August 2012, 08:29

EGT hole on the 023 I believe.

Could be wrong, but early cars didn't have EGT, and later ones did, so I THINK that's the difference.

Title: Re: k04-22/023
Post by: littco on 14 August 2012, 12:41

Quote from: Prawny on 14 August 2012, 08:29

EGT hole on the 023 I believe.

Could be wrong, but early cars didn't have EGT, and later ones did, so I THINK that's the difference.

Absolutely correct.

Title: Re: k04-22/023
Post by: rio_gti on 14 August 2012, 13:42

what is this egt hole your speaking of??

Title: Re: k04-22/023
Post by: littco on 14 August 2012, 14:21

Exhaust Gas Temperature probe.

its part of the protection system in the ECU. Older ECU's had a model version what added fuel when the exhaust gas reached as setpoint, this reduce the exhasut temperatures and protected the turbo, manifolds etc etc.

The -023 has an actual probe for precise temperature readings than a modelled temperature from the Lambda probe. It allows you to run higher egt's before adding fuel becuase of the precise nature .

Its a nice to have but not essential.

Title: Re: k04-22/023
Post by: rio_gti on 14 August 2012, 15:55

oh right!!!

is it on the cold or hot side??

Title: Re: k04-22/023
Post by: littco on 14 August 2012, 16:35

Hot... normally triggers protection when egt's reach 900degrees

Title: Re: k04-22/023
Post by: rio_gti on 14 August 2012, 17:39

Quote from: littco on 14 August 2012, 16:35

Hot... normally triggers protection when egt's reach 900degrees

nice one :afro:

Title: Re: k04-22/023
Post by: shaft69 on 14 August 2012, 21:10

Spot on boys many thanks.