wiring in gauges

[CMF_Marshal]

hey guys need some help with wiring up some gauges
1) where is the oil pressure sender?
2) how do i wire up an amp meter to the car
cheers

 

[CMF_fred]

oil pressure sender above the oil filter, rear of motor.....
why not join the ammeter across battery terminals....

 

[CMF_sikK11]

Hey Fred. I have installed a oil pressure gauge in using a small elbow in the stock position so the sender clears the filter. But my oil pressure seems to be very high. the gauge is reading around the 80psi when cold and around the 148psi when in high revs once warm.....

What you think i have done wrong or is the gauge faulty.

Also without the car running but acc on the gauge is reading around 4psi which is impossible and when i turn the lights on the number drops. Seems to be some interference.

any suggestions

 

[CMF_frank2]

fred WROTE:

<BR>
why not join the ammeter across battery terminals....

that would be for a voltmeter would,nt it fred ?
i think an ammeter needs to go in series to the pair of white wires next to the + starter wire

frank

 

[CMF_m-hayes]

Check you have a stabalizal voltage on the oil pressure guage. If the voltage is above the expected, the guage will read high. I had the same problem on a water temp garage some gears ago. Not sure where you should tap into on a Micra

 

[CMF_sikK11]

mine is tapped into the standard oil pressure light on the dash. Well it actually replaces the said light.

but will check it out

 

[CMF_fred]

duh.... Yeah frank, stupid me....... instead of replacing the the pressure switch why not but a t piece in and have the idiot light as well?

 

[CMF_sikK11]

was the plan could not get the t piece i needed when doing it and never got around to putting one it. Will be doing it soon as found out its the gauge that is faulty so its getting replaced under warrenty. Cheers for the advice