Changed mine recently(DENSO IK22), engine seems to be ticking over differently, not racing up and down but more of a gap some times in the noise....am i being paranoid?, I reset the ECU.... but it's still the same, Car is definitly driving much better though...
Other thing ,I know the plug gap is already set on the Denso's, but the plugs that came out ( DENSO IK20) 2 of them had gaps twice the size as the ones i put in...? didn't look burnt....looked fine actually..( no expert but checked with pics on the web, on what to look out for.)...
should i worry?
Tips- (for newbies, like me )
Use an air hose to blow all the sh!t out off the holes first.........sounds bad but you know what i mean, ;)
Use a piece of rubber hose when screwing in the new plugs, that way you can be sure they are treading in properly....Finish by tighting with the plug wrench
Only use the rubber insert in the plug wrench for REMOVING the old plugs....blasted thing stayed on the first new plug...Had to remove the plug to get it off......Or buy a dear one that keeps the bloody thing where it's supposed to be!