Dox

I use this https://www.glenmarch.com/cars/results# https://www.glenmarch.com/cars/results?make=384&model=2664&auction_house_id=&auction_location=&year_start=&year_end=&low_price=&high_price=&auction_id=&fromDate=&toDate=&keywords=&only_online=0&show_unsold_cars=0&show_unsold_cars=1

Lambda is ignored until engine hits a certain temp, hence swapping the CTS has lead to improved idle at low temp - original reading high?

Sounds like popping in the exhaust? ie unburnt fuel and oxygen? I'd pull ignition leads off with the engine running looking for the one that has least effect on the idle and investigate that cylinder, plug / lead / coil / compression

You should be able to view engine temp with vcds? Fluctuations would point to wiring / sensor faults lambda plug is on the rear engine mount you don’t mention whether issues hot / cold or both?

If brakes don’t hold enough place a screwdriver inside the vents on the disks locking them agains the callipers

With fog lights or without? 😆

One of the first things I did with my car was to remove the Sony screech / vibrate box - who needs one when you have the joy of narrow angle six?

https://www.volksmagic.com/ I’m pretty sure they supplied wheeler dealers parts for their gti mk1 in the very first series?

In Audis it was called Gala, the radio increased volume to disguise road speed (tyre) noise - it was probably an invention of the radio manufacturers than VAG group?

No mention of the blue / white wire in the thread, I suspect John of JMR was the instigator of the fix? A bit of TV hype that might send a few more members here?

For thirty years I’ve thought the supercharger worked a different way….

Rear spoiler fix, Elvis used the forum to fix the speed activated spoiler (blue with white trace wire at the back of the stereo wrongly connected). Sent from my iPhone using Tapatalk

Personally I’d only have my own rack refurbished. I’m sure a friend of a friend had their Volvo rack refurbed there, so far all good. a friend with a mk4 is on his 3rd rack in 2 years, exchange is a bit of a lottery imo

Matrix and connectors are all a single piece

Vr6 Sent from my iPhone using Tapatalk

That's the heavy wire from the battery (needs a clean up), its the thin wire on the starter solenoid that needs 12v+ to kick the starter in. The starter has 3 connections. Earth, this is from the metal body of the starter to the metal of the gearbox bellhousing via its bolts, the earth to the battery terminal (thick wire) is on one of the bell housing to engine bolts, needs to be able to carry a heavy current when cranking the engine over. Positive thick wire from the battery to the starter secured with a nut (13mm spanner), carries a heavy current when cranking the engine over. Positive from the ignition switch, this is a thin wire with a push fit connector, needs to carry less current from the switch to prevent the switch burning out. This is the one you connect to 12V+ to do the test I suggested previously (mimic the ignition switch).

Yes, but if the engine cranks strongly it proves battery and starter ok. then it needs investigation to ignition switch or immobiliser(s).

Car out of gear! IMPORTANT IF YOU'RE STANDING IN FRONT OF IT!). Ignition on Apply 12v+ to the small terminal on the starter - prepare for the engine to crank (this is ignition switch bypass). does engine run?

These will be going on eBay next week if there’s no interest here?

Factory immobiliser is on the same fuse as the rear spoiler- if the spoiler lifts on the button the fuse is ok. check wires to rear of ignition switch, if the securing tab has broken they can fall off the back of the switch. battery has to be suspect if it’s been flattened then recharged for the sale, 12.6v when left over night with a meter calibrated with another source - your daily?

I’m sure the VR6 knuckles only have one, the bearing pushes against the cast flange of the knuckle?

The grease cap looks like corrado, I suspect behind there is the split pin / top hat / tabbed washer as oe the disk looks sloppy on the hub centre? Polo / Mk4 cap is a round disc affair

Stub axle appears standard Corrado taper bearing set up?