random misfire after spark plugs

[SsHaDyGt]

My car seemed to be loosing power within the last couple of days I just put in some NGK TR6's from zzp it said they were pregapped of course i didnt check them (duh) I went to autozone and the scanner said random misfire multiple cylinders so my question is this could this be caused by the spark plug gap????

[richtazz]

could be that you didn't get the wires fully engaged onto the plugs. Also, did you do them one at a time so as not to mix the firing order up? I'm not a big fan of wiz-bang fancy schmancy plugs, never seen a set that did diddly-squat over standard plugs (other than platinum tipped, due to increased longevity). <---- just my 2 cents worth.

[BIG-L]

What mods have you done to the car,since those are 2 heat ranges colder then a stock plug.

~Larry~

[SsHaDyGt]

i did the 3.4 pulley all the wires are on good i checked the gaps didnt do new wires (the autostores had to order them if i wanted them) i dont belive i damaged the wires...ive been using 93 octane gas... i didnt notice this happening right after the plugs mabey 1 or 2 days later... only way i see to go is put the old ones back and see if it happens... any thoughts?

[BIG-L]

Its either one of two things...on NGK plugs they have screw on caps that the wire push's on to and they may have become lose or a chance of bad plug wires....how does the car run a WOT???? Are you getting any missfires then??

[SsHaDyGt]

actually i should have mentioned this its bad at WOT when i punch it thats when it happens it seems to be ok in the low end or even half throttle

[BIG-L]

when i punch it thats when it happens it seems to be ok in the low end or even half throttle

Plug Wires

[SsHaDyGt]

AHHHH! whats wrong with them?? i went to pep boys and autozone and they both said they would have to order the wires autozone had like one crappy pair... what wires are good for are cars??

[BIG-L]

Id just stick with the ACDelco and you can get them from www.gmpartsdirect.com for $36.70 to your door and the part # for them is 12192421 . Just keep your foot out of it untill you get them

~Larry~

[SsHaDyGt]

what made you say it was the plug wires? i rocked the engine foward when i did the plugs i hope i didnt F something up

[BIG-L]

Because it has happened to alot of use,after a plug change...and yes....even me.The car would run fine as long as you kept your foot out,but as soon as you put the pedal down @ WOT it would sound like popcorn popping

~Larry~

[SsHaDyGt]

thanks... i let you know how it comes out

[kustomkid54]

BIG-L
You have new plug wires? Now we can't race.
What happened to the new pictures?

[SsHaDyGt]

i ended up jsut grabbin some NAPA wires it seems to have fix the problem i went to autozone to get a diagnostic and they couldnt do it at night so ill just got back so i can get the SES light off THANKS