starts misfiring some at idle .. then when warm misfires threw out rpm's .. all started with a hight rpm miss. most likely opti? no ses light.. help

 

just changed the coil and it misses stumbles worse now!! grrrrrrrrhhhhhhhhh

 

I'm just guessing here on a hunch.Because you changed coil and it got worse. Which you had to unplug old and plug in new.

It may be the coil wire,and you made it worse by disconnecting and reconnecting it.Might be bad.

 

put a new one of those too.. grhh .. dad says if the coil is bad the car wouldnt run at all.. dunno

 

just a thought:

have you double checked all your plug wires to make sure none are arching?

have you checked your opti connections to make sure they are free from oil or any other debris?

is your coil rusty or corroded in any way?

are you sure all your plugs are seated properly?

you may just have a bad unit, those are just some of my thoughts.

 

just changed half the plugs and wires tonight.. its my first time really working on car like this so i think i did good. dad checked everything.. gonna take down the other side tomorrow and if that doesnt work i have a new opti and waterpump sitting right here.. i figured i try the plugs in wires first cause . 1 there cheaper and 2 maintance anyway

 

Make sure you keep us posted if the opti cures your problem.

 

Plugs, wires, coil, opti can all make you have a miss. But items that could make it seem like you have a miss that are not ignition related could be a dirty or faulty MAF, intake leak somewhere. Did you replace all the ignition items?

 

did six plugs and wires and it runs awesome again. gotta remove the alt and starter for the others i think? im glad i didnt go waste my money and put the opti in. Time to take it back