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dtharp113

Oil pressure sender question

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Can you run the existing wire from the factory oil pressure sender to the idiot light on a new VDO oil pressure sender?

Did that make any sense? I've attached pictures of the current setup. Problem is when everything is wired in -- the needle on my oil pressure gauge doesn't move when the engine is on. I've not run a new wire from the idiot light -- I merely clipped it onto the new sender

I did have everything wired in earlier (w/out the VDO sender installed) -- the signal wire to the gauges was just dangling -- and I noticed a couple of times the needle was off the chart +150lbpsi. Figured that the signal wire was just shorting.

Thoughts or comments?

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i'm not quite sure what you're saying....

But yes, that brown wire works fine for the factory idiot light. It just has a much more sensitive threshold than your factory sender. The factor sender triggers the light at like 4 psi, whereas the VDO triggers the light at like 14 PSI.

I'm not sure where your problem is coming from exactly.... but are you sure your oil pump is good? I had such problems before... and it turns out the oil pump was too weak.

But your problem is most likely a weird short in wiring somewhere.

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Local NAPA store. Don't know what the thread pitch is -- there is a slight mis-match between the sender and the elbow, but am still able to crank it down.

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most hardware/bldg material type stores sell all kinds of brass plumbing fittings

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