i have just bought a oil pressure gauge and im trying to figure out how to put it in? somebody please help tell me how to put the sensor in?

 

Find an available oil galley port and screw it in.

 

The sensor is in the back of the motor by the firewall. It just unscrews from an angled tube that comes up from the intake. It sound have a wire going to it. Its long and round. Its not difficult to replace.

 

now that part i just take out and put in mine? and thats on my motor? 91lo3?

 

No, not on your 91 engine.

There are 2 places you can install it. Either at the top of the block behind the intake near the distributor where you should have a pipe plug right now, or on the side of the block above the oil filter where the factory switch/sender is.

 

i looked behind the dis. couldnt find the plug? am i just not looking hard enough? i would hate to screw with the computer so i dont want to remove stock sensor.

 

The computer doesn't know or care about oil pressure, so you can't mess it up. The stock OPSU/switch only operates the stock gauge, and acts as a backup to the fuel pump relay.

It's not really behind the distributor, it's more beside it, on the block itself behind the intake manifold, between the two heads.

 

ok so the one on top the oil filter will work? along with the one on top the motor? and a backup? how? sorry to ask so much just trying to learn

 

Either one of those will work.

 

Mispost, please disregard. Sorry!

 

I used the port in the back of engine (next to distributor) for the Oil pressure, and the one on top of the oil filter for my oil temp.

 

There also is another 1/8" pipe plug behind the water pump just to the right side of center about the timing cover that's good for a pressure gauge or a temp sensor.