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Stan 24v

Fault code help - MK4

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Sorry for posting about a MK4 on here mods, but the MK4 forum is so bloody slow its untrue :lol: and more people here seem to know what theyre talking about than the other places anyway :wink:

 

Anyway, my mate has a 2.0 GTi MK4 and is having some issues with it.

 

Here are the codes:

 

VAG-COM Version: Release 311.2-N

 

 

 

Control Module Part Number: 06A 906 018 ED

 

Component and/or Version: 2.0l R4/2V MOTR HS V04

 

Software Coding: 00031

 

Work Shop Code: WSC 00078

 

3 Faults Found:

 

16518 - Oxygen (Lambda) Sensor B1 S1: No Activity

 

P0134 - 35-00 - -

 

17536 - Fuel Trim: Bank 1 (Mult): System too Lean

 

P1128 - 35-00 - -

 

16523 - Oxygen (Lambda) Sensor B1 S2: Response too Slow

 

P0139 - 35-10 - - - Intermittent

 

 

There is a thin (3-4 mm)pipe at the front top of the engine which feeds backwards into the intake manifold, and it is loose. If I pull it off I can hear the air being sucked in, and the engine runs a bit smoother. Not sure what it is or does though??????

 

The Lambdas are reading 0% and 3.9% constantly too.

 

Anyone got any ideas? I think the lambdas could be knackered, but that pipe could be the cause, but Im not sure what it does.

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Leads,plugs and coil changed in last 6 months. MAF changed a year ago.

 

Im going with lambda, bank 1 :wink:

 

Im also still struggling to see how the 2.0 can be classified as a GTi!!!!!! :shock: :shock: :shock: :shock: :shock:

 

It has to be "THE" worst ever GTi!!"

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Leads,plugs and coil changed in last 6 months. MAF changed a year ago.

 

Im going with lambda, bank 1 :wink:

 

Im also still struggling to see how the 2.0 can be classified as a GTi!!!!!! :shock: :shock: :shock: :shock: :shock:

 

It has to be "THE" worst ever GTi!!"

 

They didn't call that model a GTi on the continent iirc. I think it was just rip off Britain called it a GTi.

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