check your wires. if its just one cylinder, that would be my best guess. its probably burnt. also, check to make sure all your injectors are firing, as I think that can cause a misfire as well. I wouldnt jump to the opti being bad just yet, but if you rule a few things out you can start looking in that direction.

 

I changed the wires twice actually. It was my first thought too... The car runs very steadily and starts right up, it just runs on 7 cylinders. Wires are the Granatelli solid core wires and plugs are the NGK 55 or something along those lines.

 

Does anyone have suggestions for a gauge setup?

 

you will need to do some wire cutting an connecting to the gauge. the pcm which spits out all the car info on what its doing is not getting to the dash. either get a new gauge dash that is compatable or find out which wires need to be spliced from the wiring harness an hooked up to the old dash gauge. your injector might not be getting pulse. take the plug wire an put it on a differnt plug a see if it fires then. if that doesnt work try an swap a injector for a working one an see what happens.

 

The other thing you could do with the gauges is a 4th gen dash swap. I know it sounds crazy but its realy not that hard to do. I put a dash console seats and door panels from a 96 in my 91 . The dash pretty much solved all my instrument cluster problems . Plus the looks on peoples faces when they look in my car is priceless . Plenty of write ups for this sort of thing at thirdgen.org. They have a whole section just for lt1 and ls1 swaps in their forums.

 

I just used all my factory gauges in my 84 when i put the LT1 in it. I just used 3rd gen oil sending unit and temperature sending unit for the oil pressure and water temp. Then i just used a speedo cable for the speedometer but i'm using the 700r4 so that was easy and then just ran a wire to the coil for the tach

 

That makes sense, the car only came with the LT1 sending units so I will have to pick up a few parts to get it going. The car has an electronic speedo, so has anyone had experience with an electric speedo in the 90-92 camaro LT1 swap?

 

Check this out...

http://www.thirdgen.org/techboard/ltx-lsx/

 

Long time since my last post... So, I got the misfire figured out some time ago and got a tune from Solomon... Turns out I had a bad water pump leaking on everything and causing havoc. New opti, water pump and wires solved it.

Thank you for the tip on the sending units, I have gone along and bought what I need there. What I think I might need to do is isolate the wiring from the engine and body which has already been done and redo it. What's the best wiring harness I should get for an application like this? Should I also purchase a new 1992 Camaro harness?