I've been intermittently getting the CEL with stuttering. I was going to replace my coil packs and replace my spark plugs at the same time.

Which spark plugs are you using? Part #?

Who has the best prices on coil packs?

 

Don't you guys have iridium spark plugs fitted as stock on your GDs?

I'm running NGK BKR6E-11s...won't last nearly as long as any iridium plug but they're factory-recommended for my engine.

 

I'm using the Iridium sparkplugs that Oscar Jackson recommended for the GD3. Seems to work better than the stock iridiums and even showed a slight HP increase via dyno testing.

 

yeah those are the same ones i am using. denso ik22's. does feel a little better and as for coils you can just go to the dealership. i think they are going to run about 70 each though. waiting to replace all of mines too.

 

Which manufacturer are you using for them?

 

the one oscar is talking about are made by denso. they are denso iridium part # ik22.

 

With Denso IK22s I am seeing ignition timing of over 40 degrees advance at time and almost always in the mid 30s.

 

Same question here guys. Need to replace my spark plugs.

 

Now is that a good thing or a bad thing?

 

Yes it is good.... You burn your fuel more thoroughly, make more power and torque.

 

The best variant for Fita of the first generation DENSO K20PR-U11
K16PR-U11

 

Good info here guys, thank you!

-Jesus

 

ive run the denso ik22s before I had a s/c and now im still running them after i sold my s/c. Not a single problem. On the dyno we saw more power on the 2nd and 3rd run as it heated up, the tuner said that would be the ik22s

 

that's oscar's dyno correct?

 

If it advances your timing 40 degrees, do you have to make other necessary adjustments to compensate for the advanced timing?

 

^the computer will redo the fuel and whatnot....

doing a intake/exhaust will help get the most out of that extra timing...