I just replaced my sensor but still get a flat line on the gauge reading. Is it not tight enough? or any ideas?? Thanks

 

check the end at the sending unit,make sure the wire isn't broken inside the plastic piece

 

hey man....x2 on bent/broken contacts.....also, make sure contacts are clean, use some dielectric....check voltage at connector...check oil sender for short across terminals....

 

Replaced mine today because it was doing the samething. Make sure it's torque'd right and x2 on the connector. I replaced the whole wire because I wanted to make absolutely sure I was getting an accurate reading before I replaced the oil pump. Now I'm getting 30 psi at idle and 40-45psi driving along which I belive is pretty decent for as old as it is. 1990

 

how tight do i tightnen it? i still have more than half of thread left..

 

Also make sure that you got the correct one. The one-wire and the two-wire sending units WILL fit in the same hole, at least on a 1996. If the original had 2 wires, and now you have one, it will automatically flat line. Don't ask me how I know...