so i went out and bought ngk plat spark plugs and replaced em.
they were way past due, and the ignition coils were looking pretty nasty. i took out some of the copper crap inside and cleaned what i could. after install, i take it out for a spin and it feels a little sluggish. after a mile, i got a blinking service engine light. ?? any advice...? i know i need new ignition coils but untill then what coudl be a problem..

 

Get the codes read. It's probably a misfire code from a bad coil or bad spark plug install.

 

bad spark plug install?? i dunno hwo that is possible, because its just screw out screw in.

 

try resetting the ecu...

 

already did. now the engine light is off...however, i still feel it sluggish...and when i reverse, the engine feel slike its choking...and the car starts vibratign....

 

How tight did you tighten them? It's typically hand-tightened until contact, and then another 1/4-1/2-turn. Sometimes if they are not tightened enough, the spark tip doesn't reach down into the combustion chamber as far in as it should.

 

i had the same problem
check the following -
make sure sparkplugs are tight
make sure coils are all connected
make sure all coils are connected to proper harness

 

coils are connected to the proper harness? like the back coils in the back? front coils in the front? or the actual coils in the same spot they were in.
cause shoot, i did not put them back in the same spots...=/

 

fixed. thanks

 

How did you fix it?

 

that's probably what it was

 

I've always put my coils back in the original sparkplug holes, but does that really matter? If so, why?

 

i dont think it mattered.
lol all i did was redo everything and tighten everything real good. ??? doesnt make much sense because everything was on there pretty tight. but i dunno. car is kickin like it used to...feels great.

 

oh and reset the ecu?

 

No reason for it.

 

The cylinders dont all fire at the same time.

I think they fire 1, 3, 5 then 2,4,6 but could be wrong.

 

yeah i had that problem with the rear coils...harness connected to wrong coil.
so they arent firing when the cylinder needs them too

 

Right, but what does that have to do with putting coil one in place of coil five?

(No, I'm not suggesting crossing the plugs, just unplugging and switching coils).

It should have no difference. When you order replacement coils, they don't come assigned to a specific cylinder.

 

to coils dont matter...the harness does

 

That's not the firing order