Faulty Oil Pressure Gauge, Wire?

[Richie-Van-GTi 71 2 Cars]

Since swapping my engines about Ive not been getting any reading on the oil pressure gauge. When I put the first replacement 1.9 lump in it didnt register any oil pressure but didnt investigate fully as the engine had other issues. Now Ive got a working 2.0 in Ive noted it still doesnt work. When you first switch the car on the gauge registers just over 3/4, whn the car is actually started the gauge is like that for about 5 seconds then goes back to zero. Ive tried 2 different senders, one of which I know for sure works. Could it just be a bad wire between the gauges and sender or does it sound like a faulty gauge? I dont remember it self testing with the original engine.

[returnofjim 0]

Since swapping my engines about Ive not been getting any reading on the oil pressure gauge. When I put the first replacement 1.9 lump in it didnt register any oil pressure but didnt investigate fully as the engine had other issues. Now Ive got a working 2.0 in Ive noted it still doesnt work. When you first switch the car on the gauge registers just over 3/4, whn the car is actually started the gauge is like that for about 5 seconds then goes back to zero. Ive tried 2 different senders, one of which I know for sure works. Could it just be a bad wire between the gauges and sender or does it sound like a faulty gauge? I dont remember it self testing with the original engine.

 

Have you got the wires for the gauge and pressure warning light the correct way round?

[Richie-Van-GTi 71 2 Cars]

assume so as the warning light works correctly but doesnt when swapped over

[pug_ham 244 3 Cars]

If they are cross connected the warning light will still go out when the engine is running but the guage won't work.

 

Graham.

[ALEX 98 1 Cars]

If you can see the wire number, according to Haynes

30B is the sender wire

30a is the switch wire

Alex

Edited June 1, 2006 by ALEX