I am changing my plugs to denso iridiums, my car is NA, no mods. I checked the gaps on the plugs and they are all microns less than factory spec 1mm. If I leave the gap as is could there be any negative effects? And what happens if a plug is used with a gap that is way too small??

 

On page 2-2 of the factory service manual the gap should be 1.0 - 1.1 mm with a service limit of 1.3mm (.039 - .043 in.) Regap the plugs to 1.0 or to .039 in.

 

True.....regap them to specs....it's easy to do.

And why go to Iridiums if your not even FI?

Why roll the dice on a plug that has been PROVEN to fail and break off.

I would recommend replacing with OEM plugs and gap.

JMO.


Tim

 

S2K is one of the few cars I've owned that I use OEM replacements for.. pads, spark plugs, etc Why fix if it ain't broken

 

Yeah got them to the correct gap, and I have heard about them causing problems on FI cars, but not on the naturally aspirated, correct me if i'm wrong bc they are in my car right now

 

FI or NA......a failed or broken plug is broken plug... It's your car but why roll the dice on a plug that has been proven to fail?

There is NOTHING special about Denso Iridium.

JMO.

Tim