Ivan Montero

The car runs but the oil pressure gauge reads 80psi at all times and the coolant temperature gauge reads Lo at all times. Need some help with this wiring disaster.

Incorvettei

Oil pressure reading 80 at all times is either a bad sensor or connection to it. On my 86 the sensor is on the passenger side of the engine towards the firewall.
I had the same issue and found that the previous owner cut the connector off the wire and tried to wrap it around the spade.

puufgone

This first picture looks like what's left of your EGR Temp Sensor, which on my '88 is located on the EGR Crossover tube on the passenger side, by the firewall, going from Intake Manifold to Exhaust Manifold pipe.






David

thirdgear

The 4 hole connector went to the original distributor for spark knock control. The 2 hole connector went to the intake air temp. sensor.

Ivan Montero

Thank you guys for the help it’s been difficult since im not a mechanic, slowly getting this car road worthy, im seeing that some of these cars have a oil pressure sender and a switch but mine only has a switch, I can’t seem to find where the pig tail for the sender would connect to.

Ivan Montero

This picture is for reference, I’m assuming this is how our corvettes come stock. I seem to be missing the whole assembly, is that why my oil pressure regulator reads 80 psi?