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Always had the problem with the oil temp. gauge reading. It barely
moves. Would like to see it in the middle of the gauge when engine reaches 200 degrees. Gauge is VDO with a VDO sender. Had the same problem with the T1 sender and same with the sender I using now that's for a 914 T4. I'm guessing it's because of the voltage drop between the sender and the gauge. Any way to fix this ??

Thanks, Bob
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Always had the problem with the oil temp. gauge reading. It barely
moves. Would like to see it in the middle of the gauge when engine reaches 200 degrees. Gauge is VDO with a VDO sender. Had the same problem with the T1 sender and same with the sender I using now that's for a 914 T4. I'm guessing it's because of the voltage drop between the sender and the gauge. Any way to fix this ??

Thanks, Bob
I had the same problem but it wasn't a voltage drop. My original sender was drilled/tapped into the sump and installed with teflon tape on the threads which probably screwed up the ground (VDO says NOT to use sealants when installing senders).

I bought a VDO dipstick sender; it is adjustable for depth in the crankcase and can be bent to clear the alternator housing, etc. I used the original wire and the gauge read perfectly (the dipstick sender also requires a separate ground wire).
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