I have fitted it all no problem. The oil temp gauge is flashing. So that tells me there in no sender connected. (Prosport gauges). I ordered a new temp sender and its still flashing. Why is that?

 

The sender may need to be earthed if its a single wire type? If youve put ptfe on it? Its probably not making the earth on the block. Easily tested with a length of wire

 

2 wire type. Does it still need to be earthed?

 

Honestly dont know. But know harm in trying. Wrap some wire round the body of it and earth it at the battery

 

Just as a thought. Are you sure its not flashing because the oil is cold? Ive never had prosport so im not sure how they function

 

No the flash when no sensor is detected. They also flash white and red when its a warning. But this is just normal flashing.

 

The sender has 2 wires ( white and black) Do i need to earth the black wire somewhere or do both connect to the harness from the gauge.

 

How many in the harness from the gauge?

You certain they are SECURELY connected at the gauge?

 

100 % secure.

For the power there is
White acc
Red constant
Black earth
Orange dimmer

Gauge to sender

White
Black

 

OK, if there's two wires, it has to be black to black, white to white.

You don't say if you have tried earthing the body of the sender yet?

Have a look here: http://prosportgauges.com/performanceoilpressure.pdf

Or here: http://prosportgauges.com/52mmPremiu...mium%20oil.pdf

The top one says white sensor wire to green gauge wire, black sensor wire to ground.

You now certain you have the right sensor for the gauge, because the second one says white to white, black to black?

Also, the top one has differing gauge wiring instructions to yours......

Found them here: http://prosportgauges.com/instructions.aspx

 

I have tried earthing the sender to the chassis.

The second set of instructions are the ones that came with the gauge, and match all wiring I have.

If I attach a multimeter to the sender the gauge stops flashing instantly. Why would that happen.
Thanks for the reply.

 

It senses a load across it. Try the multimeter on Ohms across the gauge sender wiring, with the sender DIS-connected. It should find a resistance. If it finds none, the gauge is US.

One of those sets of instructions mentioned earthing the black wire. Try that?

 

I have earthed to chassis and still nothing. The sending gives readings on its own. Which tells me that the sender is spot on. I have ran out of ideas lol

 

OK...

- the sensor does NOT need to be connected to chassis (but you won't have harmed it if you tried this)
- it is a simple thermistor, so the resistance varies with temperature. If you can measure a resistance at the sensor (maybe 1000-2000 ohms, but that's a guess) then the sensor is fine.
- if you reconnect the cable and measure the resistance again at the cable end up at the gauge, but with it unplugged from the gauge, and you see the same resistance, then the cable is fine
- if it still doesn't work when you plug the cable back in to the gauge, and you are 100% sure it is plugged in properly, as the ProSport gauges (and their cousins) have pretty naff connectors that are hard to plug in properly, then it suggests your gauge is duff.