unplugged??

[blues n 2s]

hi guys not been on 4 a while.Ineed a little help a while ago I removed my 3b head & renewed head gasket long story short i have a plug spare doh!!!the engine wont start.messed it up proper me thinks.would like to know if this plug is y.the plug is a 2wire connection at the back to right as you look at it.1 wire is brown/blue stripe other brown/white stripe.the middle of the plug is purple.where the blazes does it go?????????cheers for help guys in advance.

[WidowmakerS2]

Dizzy plug?

[blues n 2s]

TBH cant bloomin see.looks like i have to strip out again.really don't want to with my luck.hoped someone would say defo blah blah an i'd be back in the running

[WidowmakerS2]

If it was the distributor plug, you would be able to see.
Let me see if I can find any references in the schematics.

[Mikes2]

I'd suggest pulling the codes for the non-start. It may give a clue.

You can have a look through the wiring diagrams here

http://s2-audi.co.uk/workshop/schematics/motronic_3b/motronic_3b.htm

I've not seen a brown/white and brown/blue combination listed

[S2central.net]

I can say without looking at the schematics that the declared wire colours on that 2-pin plug must be wrong as the sense of a brown wire is permanent earth whilst brown/anything is a switched earth and is such would be weird to have two switched earths going thru same 2-pin plug.

I will look at my 3B pages and see if anything looks like a candidate for a no-start but have another look at the wire colours and check you haven't mixed up G4 & G28 on the flywheel. Also a missing G40 would cause no start.

[blues n 2s]

I can say without looking at the schematics that the declared wire colours on that 2-pin plug must be wrong as the sense of a brown wire is permanent earth whilst brown/anything is a switched earth and is such would be weird to have two switched earths going thru same 2-pin plug.

I will look at my 3B pages and see if anything looks like a candidate for a no-start but have another look at the wire colours and check you haven't mixed up G4 & G28 on the flywheel. Also a missing G40 would cause no start.

paul,so sorry mate this car is a cq 20v with a 3b in the wire colours are correct but they look like the car loom.sorry again.any ideas??p.sthose numbers mean nothin to a peasant such as myself :-(

[S2central.net]

Can you post a photo of where this mysterious plug is ?

I like a challenge :-)

[blues n 2s]

Can you post a photo of where this mysterious plug is ?

I like a challenge :-)

i like a challenge too,will do my best asap challenge accepted my friend lol

[blues n 2s]

these are the photos as promised. challenge completed.

[T2Andy]

looks like the lamda sensor plug to me (ABY ) though

[blues n 2s]

looks like the lamda sensor plug to me (ABY ) though

???????? any further suggestions guys pls

[andyg plym]

its not for the isv?

[madpugger]

Having just taken my (ABY) head off a couple weeks ago, I seem to remember there are two plugs below the throttle body somewhere that are pretty close to being one on top of each other. I am not home to go have a look though sorry.

[blues n 2s]

its not for the isv?

is that the grey metal cylinder ontop at rear of engine mate if so then no :-(any more am goin off my empty head lol