MK5 Golf Plus TDi 'Emissions - Garage'

**Crystaleyes** · 05-05-2020,04:53 PM

It's almost like the immobiliser is on...

The EGR valve has two small holes, 180º apart, next to the diaphragm, which have been spraying out oil. particularly the one on the engine side, covering the block in a load of gunk.

Lastly. Does anyone know anyone with decent diagnostics kit in the Gloucester area?

**Crasher** · 05-05-2020,05:44 PM

The BKD won't run with the G28 detached. Have you viewed the cranking RPM is measuring blocks? It MUST exceed 280rpm.

**Crystaleyes** · 05-05-2020,06:05 PM

Hi Crasher & Co

Got it going.

There had been an intermittent, high-ptched siren sound under the bonnet, which had remained a mystery...

Although I had tested the V157 flap by turning on and off the ignition and looking for movement, I decided to remove to rubber pipe to see if the automatic flap under the EGR was in any way choking upon ignition. It wasn't. And that was where the 'sound' was emanating.

With a friend cranking the motor, I manually pumped the flap and VOILA! we have life.

Although the V157 may have to be changed now, can someone tell me if the flap motor is supposed to whine? Surely not? The engine had been idling uneven for a while, now I think I know why.

I am also leaving the new glow plug relay in and keeping the old one (which is good) as a spare

Thank you all for your input. Much appreciated.

**VAG-Abound** · 05-05-2020,06:22 PM

A whine may indicate too little current to get things moving, but I don't think that's the sort of noise you'd hear over an engine trying to start. But if you're saying the V157 isn't working properly 10A fuse in SB24 supplies it. Given the other fuse challenges, is it place and good?

**Crystaleyes** · 08-05-2020,04:00 PM

Update:

Took the car for a long drive without any problem so I consider the problem resolved.

Looking back, the only real fault was the fuel pump. Everything else was down to missing fuses (***?), but there you go.

Hopefully this thread will help someone else in the future.

Thanks again for all the help.

**Crasher** · 08-05-2020,06:59 PM

I had a type 36 Passat in yesterday which had been playing up and would not start. The owner and breakdown chap got it going and brought it in and it was full of codes so I cleared them and re-checked, on Lambda sensor heat open circuit came back. I checked the wiring diagram and found the fuse was missing, the owner was mystified.

**VAG-Abound** · 08-05-2020,07:30 PM

Presumably you still have the emissions light? If so it'll need sorting before MOT.

**Crystaleyes** · 08-05-2020,08:42 PM

Originally Posted by Crasher

I had a type 36 Passat in yesterday which had been playing up and would not start. The owner and breakdown chap got it going and brought it in and it was full of codes so I cleared them and re-checked, on Lambda sensor heat open circuit came back. I checked the wiring diagram and found the fuse was missing, the owner was mystified.

Wow. That is nuts...

Maybe there is a new VW fuse-thief phantom we need to watch out for...?

**Crystaleyes** · 08-05-2020,08:44 PM

The "Emissions Garage" was due to a missing fuse. It was cleared using the ignition trick. So no, there are now, no faults, nor warnings.

All is good under the hood...