not runnin good wit new plugs?? jzx100

[eric25]

hey lads serviced the car recently and the chaser is runnin shit on the new desno iridum plugs i got for it, it gets very spluttery from 3000 revs onwards,idles grand but no power if full throttle really, i changed the plugs back to the old one that were in it earlier on and it runs perfect wit them but is bad when it idles wit them back in now.they are greddy iridium ngk ones which were in the car,its kinda wrecking my head, could it be the coilpacks or anythin?? an info appeciated cheers

[1-JAY-Z]

hey lads serviced the car recently and the chaser is runnin shit on the new desno iridum plugs i got for it, it gets very spluttery from 3000 revs onwards,idles grand but no power if full throttle really, i changed the plugs back to the old one that were in it earlier on and it runs perfect wit them but is bad when it idles wit them back in now.they are greddy iridium ngk ones which were in the car,its kinda wrecking my head, could it be the coilpacks or anythin?? an info appeciated cheers

Did you check the gap with a feeler gauge on your new plugs? What model number plugs are they?

[eric25]

na didnt check that yet but wit the two plugs up together the new ones hav a bigger gap!! they are sk20rp11!!

[Chuck_g]

Id say gap too man, im not great with all that crap but give Mike Deane a buzz tomorrow, he will steer you right.

[Stonie]

Give the ngk's a clean with a wire brush and put them back in or get new ngk's, wouldn put denso's near it but if you do want to use them your problem is the gap. Gap them down to around 25-30 thou and miss mire should disappear!

[1-JAY-Z]

na didnt check that yet but wit the two plugs up together the new ones hav a bigger gap!! they are sk20rp11!!

Edit:

Basically what Stonie said.

[eric25]

thanks lads for all the info i will try both ideas so and if im not happy ill go wit new ngk ones,hopefully thats all it is anway

[1-JAY-Z]

thanks lads for all the info i will try both ideas so and if im not happy ill go wit new ngk ones,hopefully thats all it is anway

Well its not coils anyway if your old ones are working fine.

[eric25]

ya at least that was ruled out anyway nice one lad

[MarkII]

nothing wrong with denso plugs in a Toyota, they come from factory with them.
yes the gap on your new plug is too large, every time i change the plugs in my 1jz i'v to adjust the plug gaps.