**New Clocks - oil warning light coming on? HELP**

[G60Dan]

Just replaced my 8V clocks with some 16v clocks. Problem is, as soon as I pull away, my oil warning light comes on & starts to scream!! Stays on till the ignition is turned off. The car is a 20vt, so I'm guessing the oil warning light wouldn't have been connected with old clocks!! Why does it keep coming on??

HELP!!!!

Cheers

Dan

[Mart8V]

You may have damaged the circuit strip when changing the clocks over- easily done.  If so you will have the buzzer going constantly.  How warm was the strip when you changed the clocks over?  If cold they are quite brittle......

[G60Dan]

I don't think that is the case. At idle the car is fine. As soon as I start driving down the road, the light & buzzer is on before I have got to 2nd gear??

[Ben Lessani]

sounds like a dodgy connection - or you really do have low oil. check all the wiring is firmly attached with no breaks.

[Mart8V]

I have a feeling that after 1500RPM these clocks switched to the high pressure sensor which was on the side of the head.  If that sensor does not exist on the 20VT then that may be causing the problem as it is not getting the signal it should?

Rubjohnny is your man on this sort of thing!

[G60Dan]

I'm sure I've seen 160mph clocks in over 20vt's before though??

I don't care if the oil buzzer isn't conected? I'll buy an seperate gauge! I just want it to turn off.

It's not the level oil, it's sitting just under the max

[G60Dan]

On Club Gti I've been told Ineed to connect the oil pressure sender wire to earth, or even better plumb in the 16v senders so they work properly.

Anyone shed some light on this? What colour is the wire that needs earthing?

[NewStu]

Of the top of my head i think its green and black. I think it origionates from the loom on the bulk head in the middle.

[G60Dan]

Cheers Stu, can anyone confirm 100% which wire before I butcher my loom LOL!

Also, should I cut the wire & earth both ends, or just one? I assume both, but thought I'd best check.

Thanks

Dan

[G60Dan]

Found this wiring guide, just need help confirming the wire now!  

Pre-CE2 fusebox rear connections

Dash plugs (I think, after much head scratching!!):
T7 - white plug, short side
T7a - black plug, long side
T7b - white plug, long side
T7c - black plug, short side

A
1 - gry/blu- light switch pin 58b (dash light dimmer)
2 - grn - wiper stalk pin 53
3 - blu/yel- dash plug pin T7b/7 (upshift control light)
4 - blu/blk- dash plug pin T7c/4 (oil pressure control unit, 0.3 bar feed)
5 - grn/yel- wiper stalk pin 53b
6 - grn/blk- wiper stalk pin 53e
7 - blk/grn- hazard switch pin R & indicator switch pin R
8 - blk - ignition switch pin 15
9 - wht/blk- light switch pin 56
10- blk/grn/wht- hazard switch pin 49a & indicator switch pin 49a
11- blue/brn- spare plug behind fusebox? (indicator relay pin 2)
12- brn/blk- wiper stalk pin J
13- blk/blu- hazard switch pin 15
14- grn/wht- wiper stalk pin L
15- grn - fusebox pin B/1
16- blu - dash plug pin T7a/5 (alternator warning light)
17- blu/red- dash plug pin T7/7 (indicator warning light)
18- wht - hazard switch pin 49
19- grn/red- wiper stalk pin T
20- blk/wht- hazard switch pin L & indicator switch pin L
21- yel - indicator stalk pin 56b (headlight flasher/main beam switch)
22- blk/yel- rear window heater switch pin + and heated seat switches pin 15
23- blk/red- glovebox light and fresh air blower switch pin + or A/C switch pin +
24- gry/grn- light switch pin 58 (dash light dimmer)
25- blk/yel- fusebox pin L/1
28- blu/wht- dash plug pin T7/1 (high beam warning light)

B
1 - grn - fusebox pin A/15 and dual circuit & handbrake warning light
2 - grn/wht- fog light switch pin 83b (fuse #17)
3 - vio/blk- dash plug pin T7/5 (fuel gauge)
7 - yel/red- dash plug pin T7b/6 (coolant temp gauge)
8 - red/blk- ignition switch pin 50
9 - blk/gry- wiper stalk pin 53a
10- blk/yel- light switch pin X
11- gry/red- cig lighter
\- red - radio power plug pin 7
12- red - digital clock/MFA
13- red/yel- indicator stalk pin 30 (headlight flasher/main beam switch)
15- yel - dash plug pin T7a/4 (oil pressure control unit, 1.8 bar feed)
16- wht/yel- fog light switch pin 83a
18- blk/grn- upshift/fuel consumpton indicator solonoid shut-off
19- red/blk- dash plug pin T7b/4 (rev counter)
20- grn/yel- fog light switch pin 83
21- wht/grn- rear window heater switch pin 86
22- wht - indicator stalk pin 56a (headlight flasher/main beam switch)
23- red - light switch pin 30
25- brn/blk- fusebox pin L/2
26- gry/red- light switch pin 58R
27- gry/blk- light switch pin 58L
28- red/wht- hazard switch pin 30

C
1 - red/blk- brake light switch
2 - blu - alternator pin D+
3 - red/yel- brake light switch
4 - grn/blk- left parking light bulb
5 - yel/wht- left headlight bulb pin 58b
6 - yel - right headlight bulb pin 58b
7 - red - radiator fan thermal switch & radiator fan after-run relay pin 30
8 - blk/grn- right front indicator & repeater
9 - grn/red- windscreen washer pump pin +
12- blu/brn- brake fluid level warning switch
13- blk/yel- dual tone horns
14- grn/red- right parking light bulb
15- brn/blk- dual tone horns
16- wht - right headlight bulb pin 58a
17- wht/blk- left headlight bulb pin 58a
18- red/blk- thermo switch for cold start valve (K-Jet f/inj) or digifant ECU pin 1
19- blk/wht- left front indicator & repeater
20- blk - radiator fan run-on control unit pin 2/15
22- wht/yel- foglights

D
1 - blu/blk- oil pressure switch (0.3 bar)
2 - blk - thermal switch for inlet manifold heater (carb models) or fusebox pin R/1 (digifant f/inj) or idle & WOT switches
\- blk/wht- idle overrun cut-off valve (carb models)
\- blk - knock sensor control unit pin 5
3 - wht/grn- fuel gauge sender or transmission switch/upshift indicator
7 - blk/yel- low coolant level switch unit pin 6/15, idle boost control unit pin 2/15 (K-Jet f/inj)
8 - wht/red- vacuum switch/upshift indicator
9 - grn/yel- windscreen wiper motor pin 53b
12- grn - windscreen wiper motor pin 53
13- vio/blk- thermal switch for carb heater, inlet manifold heater, auto choke & bypass cut-off valve (carb models)
\- red/yel- electronic ignition control unit pin 10 (16v) or digifant ECU pin 3 (digifant f/inj)
\- red/yel- knock sensor control unit pin 10 (16v)
15- wht/vio- resistance wire -> ignition coil pin 15
16- blk/red- reverse light switch (M/T) or starter/inhibitor & reverse light switch pin 15 (A/T)
17- grn/blk- windscreen wiper motor pin 53e
19- blu/blk- reverse light switch or starter/inhibitor & reverse light switch pin R & diode (A/T)
20- blk/gry- windscreen wiper motor pin 53a
21- yel - oil pressure switch (1.8 bar)
22- br - windscreen wiper motor pin 31, and spare connector behind fusebox or to earth 'claw' near fusebox
23- blk - ignition coil pin 15
24- red/blk- starter pin 50 (M/T) or starter/inhibitor & reverse light switch pin 50 (A/T)
26- red/blk- ignition coil pin 1 & idle control unit pin 1 (K-Jet f/inj), overrun cut-off valve (K-Jet f/inj)
29- yel/red- coolant temp sender
\- yel/blk- low coolant level switch unit pin B/G