Really wishing I had a zf5...TPS sensor.

[Mishka]

What's that? ,That don't go to transmission does it?

 

[Doc Niver]

Wish I had anther e4od I detest the zf5 almost as much as driving a chevy.
The 2 tps's I got from Ford for my E40d I could never get right. The cheap amazon worked great. Get your voltages correct or it will never shift right.
One of the other problems I found was the shifter switch on the transmission was adjusted wrong on my other truck and after adjusting it the problem was corrected.

 

[734me]

The "plug" next to the oil cap (screws into the timing cover) is a tach sensor. It can be tested by removing and checking with an ohm meter. Should be 2000 - 3000 ohms. I've had to replace mine twice. When bad, trans goes into limp mode and/or shifts erratically. Cost is about $50. Dorman part # 926-323. I ordered mine through Autozone ($10 off and lifetime warrantee so won't be paying for the next one if it goes bad). Good video about this here:

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Hope this helps.