ok sooo my 94z was missing really bad and backfiring occasionally ...i thought this was because of a bad opti but now i found out i have burnt ignition wires which is probably the cause of all my problems...anyways i want to know how hard they are to change? if anyone has changed them before? and what wires to buy thanks in advance for all help...

 

so what wires are u talking about. spark plug wires?

 

i think its the ignition wires that run into the opti? im not sure thoo i think thats what the mechanic meant

 

its easy to change the wire to the opti here is one to see if thats the one. u just unplug from opti and the harness mounted on the passenger side of intake manifold by the fuel rails.
http://cgi.ebay.com/ebaymotors/Optis...#ht_1234wt_941

 

ok cool its cheaper then i thought... thanks crabby that helped a lot

 

well if he was talkin plug wires,,, they are a pita. major. check out the plug wires see if they look burnt or in poor condition. i would look there for a missing cylinder first. but if its a misfire which i take to mean a spark happening at the wrong time rather than not happening at all, i would say its more likely to be the opti wire.

 

ok ill do that... the symptoms are a miss fire, the ocasionall backfire from the exhaust, and the car dying altogether..it sounded like a bad opti to me but the mechanic doesnt think so :/

 

my spark plug wires got burnt before so if you do the wires make sure to get something that keeps them away from hot parts so it dosent happen again