The dash gauge (electric) was showing about 5 psi at idle, so I hooked up a mechanical gauge. It showed a very steady 30 psi at idle. I installed a new VDO sender. The pressure now is 40ish at idle, but drops to low 20's as rpm increases. Totally reverse of what I've ever seen.
Any ideas what is happening? This is with the 2010 Duratec engine. The old sender (VDO) had two terminals and the sender ground was wired directly to the gauge. When the new (single terminal) sender was installed, the ground wire was grounded to the block. Could that cause readings to be reversed? VDO gauge.
I must say that I am not all that impressed with VDO. So far the volt meter and water temp gauges have packed it up. Now this from the oil pressure. Also, at times, the odometer looks like it is sending messages in Chinese.
Bill
Any ideas what is happening? This is with the 2010 Duratec engine. The old sender (VDO) had two terminals and the sender ground was wired directly to the gauge. When the new (single terminal) sender was installed, the ground wire was grounded to the block. Could that cause readings to be reversed? VDO gauge.
I must say that I am not all that impressed with VDO. So far the volt meter and water temp gauges have packed it up. Now this from the oil pressure. Also, at times, the odometer looks like it is sending messages in Chinese.
Bill