I installed a new transmissoin mount and ran with open headers well the ses light was flashing so i checked all the plugs and they were all loose very and i tightend them and now it will stumble till about 30 i took 1 out and it looked fine maybe some others are bad i dont think theyve been changed sence some one bought it first before me but it has about 75K and when im cruising at 15 every so ofter i will hear a loud pop from the drivers side header only ?

 

I sure hope not a damn opti **** i can not afford to do that, i just read something about arching wires or fouled plugs i hope thats all it is

 

NO ITS NOT i just had that problem Change the plugs. Its them i broke my 02 seonors the other day. POP and cracked like a B*tch
it fauled one plug and the rest where them were all carboned up.

 

thats a relife it is

 

Did anyone else understand that dialogue?

 

fo shizle

 

I changed today to brand new spark plugs, and the wires are fine. I drove it about 20-50 mph at 50 exactly it goes away it will speed up/smoothly and then will slow down and vibrate alot i just installed Lt's and no o2's but this has been for about 3 weeks now adn this just happend yesterday within that speed sometimes not always the SES will flash but then it go's away! i was driving WOT and its fine barked the tires just fine and going 80 it was just fine and decelerating is just fine but till about 15 then only the drivers side header consistantly back fires? please dont say a 300.00 opti but whats wierd is it idles just fine!

 

help please? it may seem like the transmission is to blame maybe the automatic is slipping or something? would the KM not having an LT4KM make a diffrence

 

 

just between 20-50 with out going wot it will get a little jerky not like its not firing but just not smooth unless its my headers making me think that with the mufflers lol or something maybe a fuel filter will help as you all say

 

I never have too much of a problem with the plugs, its usually the wires. These cars to run a relitivly hot ignition. If you changed the plugs and not the wires, you could try a new set of wires and see if the stumble goes away.

 

it was doing it before i put in the new plugs i mean it rained harder than hell sunday night and after work came right home and everything was fine till the next morning think somehow the opti crap got wet?

 

can it be the LT1 knock module retarding the ignition with my LT's and header mufflers or some off the wall ****?