oil pressure warning switch

An alchemy of sparks, copper wire and earth

Moderators: User administrators, Moderators

Locked
CraigSagar
Registered user
Posts: 4
Joined: 03 Dec 2010, 19:02
80-90 Mem No: 9074
Location: Nr Rochdale

oil pressure warning switch

Post by CraigSagar »

Just refitted the engine on a 1.9 watercooled petrol not sure where the wire goes for the oil pressure warning switch on the side of the crank case. If anybody can let me know I would be very grateful.
There seems to be 2 loose wires beneath the thermostat housing but not sure if these are the right ones.

User avatar
kevtherev
Registered user
Posts: 18832
Joined: 23 Oct 2005, 20:13
80-90 Mem No: 2264
Location: Country estate Wolverhampton Actually

Re: oil pressure warning switch

Post by kevtherev »

the low pressure switch is between No 3 and 4 behind the shielding.
one wire and it's brown

The high pressure switch is under the water pump next to the oil pump
one wire and it's brown

what colour are the two wires you found?
AGG 2.0L 8V. (Golf GTi MkIII)

CraigSagar
Registered user
Posts: 4
Joined: 03 Dec 2010, 19:02
80-90 Mem No: 9074
Location: Nr Rochdale

Re: oil pressure warning switch

Post by CraigSagar »

the 2 wires i have spare under the thermostat housing one is green and black and the other is yellow
There is a piece of brown wire attached to the oil switch but it has been cut at some time

User avatar
kevtherev
Registered user
Posts: 18832
Joined: 23 Oct 2005, 20:13
80-90 Mem No: 2264
Location: Country estate Wolverhampton Actually

Re: oil pressure warning switch

Post by kevtherev »

There are two switches on your thermostat
the yellow /red trace and brown are your temp gauge wires
the black / green trace and brown are your coolant shortage/manifold heater switch wires

the yellow wire is to your 0.9 bar oil switch (high pressure) turns to brown at the two pin connector
the black/blue wire is to your 0.3 bar oil switch (low pressure) turns to brown at the two pin connector
AGG 2.0L 8V. (Golf GTi MkIII)

CraigSagar
Registered user
Posts: 4
Joined: 03 Dec 2010, 19:02
80-90 Mem No: 9074
Location: Nr Rochdale

Re: oil pressure warning switch

Post by CraigSagar »

Thanks very much for your help I've given up to it for today as it is starting to go dark outside and I have been laid under it all day but 1st thing in the morning I'll wire it up and I am sure it will be fine then.
Thanks once again

Locked