I bought a iroc full gauge, gauge cluster to go in my SC, I followed the tech article about swapping them, then I got out the old cluster and when i went to put the iroc one in and i turned it over the, the oil pressure and tach didn't want to work
please help me, thanks

 

Couple of questions here, what year iroc did the cluster come out of. Did you replace the oil pressure sending unit like the article said, did you check the Printed Circuit Board (PCB) Tape on the back of the cluster for any tears. Did you check the wiring for the tach?

 

the iroc was an 87, and i did replace the oil pressure sending unit, and there are no tears, and the white wire is plugged up for the tach

 

Since they are both on the same unit, I'd suspect a bad power feed or ground connection.

 

i got the oil pressure to work properly(it wasn't plugged up )
but the tach still dont work right, but it is getting power b/c when i go to start it it moves and when i start the car it jumps to 7 grand and stays there

 

So it sits at 0, and when you put the key in the "ready" position it jumps to 7000?

My tach was being stupid, it would sit at 6500 with the key out, and when the key was put in "ready" it would go to 7000.

As per someones advice, I pulled my gauge faceplates off, used my finger to turn the tach needle to 0, start the car, and the tach worked. Not sure if this is the same thing.

 

this is whats happening #1.....

 

forgot the pic

 

the engine is starting to turn over

 

justed started and running in the last one

 

lol Why are your pics triple like that?

Yeah you probably have a wiring problem somewhere.