My 96 has all the sudden started missing bad. Where would you start?
New plugs and wires ect... also please let me know what brand is good.
I have read alot here about the Optispark and I think that my be the problem.
Is there anyway to have it checked out?
Thanks for any help.
Randy

 

Your OBD-II PCM includes the capability of counting misfires by individual cylinder number. If you have the PCM scanned with an OBD-II scanner, with "GM Enhanced" parameter capabilities, it will tell you which cylinder(s) are misfiring. That might point you in the correct direction.

 

I just had it Inspected and they told me it was misfiring on #2 and #5 What would you think? thanks for the reply.

 

I would start with the easy stuff and make sure the plugs and wires are in good shape.

 

Thats sounds good. Are Taylor 8mm a good choice and for plugs what do you like?
Thanks

 

I've had no problems with Taylor wires and NGK plugs.

 

Same here, although some people don't care for the Taylors wres.

 

I run Taylors and haven't had a problem with them. I would guess that plug wires have deteriorated and that is your misfire. Plugs and wires are never a bad idea. You might not be able to get the 8mm plug wires back into the stock wire location. I can't remember if they fit in the looms or not.

 

Very true, but on the flipside, I have heard criticism over the MSD sets as well. People need to realize you can have problems with the best of brands.

 

I ran autolite plugs in my stock LT1 and they were fine. I believe I used taylor wires as well. change plugs & wires to start, and see where you stand. It could be a possible opti issue.