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Discussion Starter #1
I am about to do some upgrades to my truck with the help of URD parts and TRD parts,but am wondering about the littlest thing. I am replacing my IK20's that were installed with the 7th injector about 18k miles ago with the IK22's on URD's website along with their AIC and a WB. I think that the gap was .032 in the trd install instructions for their kit but am not exactly positive since I gave the dealer both my sets of instructions. If anyone can help my wonder I would appreciate it.

Sam
 

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samsc03 said:
I am about to do some upgrades to my truck with the help of URD parts and TRD parts,but am wondering about the littlest thing. I am replacing my IK20's that were installed with the 7th injector about 18k miles ago with the IK22's on URD's website along with their AIC and a WB. I think that the gap was .032 in the trd install instructions for their kit but am not exactly positive since I gave the dealer both my sets of instructions. If anyone can help my wonder I would appreciate it.

Sam
Sam, I'm running IK20's set at the denso factory gap of .32. Truck runs fine with those plugs. As of now, I see no reason to go to the IK22's. FWIW, Denso says "do not attempt to change gap on Iridium spark plugs". I read this in a bulletin at the dealership when they installed my 7th.

Dave
 

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Discussion Starter #3
Thanks for the quick reply.I think that I am still getting ping along with my exhaust leak now. Sometimes I am sure it is the leak and other times it definitely sounds like both. Well before they are installed I will just make sure and that little screw on the top needs to be tight I think. Hoping everything i am gonna get done will help out.

Sam
 

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samsc03 said:
Thanks for the quick reply.I think that I am still getting ping along with my exhaust leak now. Sometimes I am sure it is the leak and other times it definitely sounds like both. Well before they are installed I will just make sure and that little screw on the top needs to be tight I think. Hoping everything i am gonna get done will help out.

Sam
Sam, the AIC worked wonders for me and I'm sure it will for you too. Make sure you tune right away. Make sure you tune the closed loop portion along with the open loop. Brian used a scan tool to tune the closed loop from about 0 psi to the point it went into open loop then used the WB to tune the open loop. Gas mileage went up, runs really smooth, and hauls ass!

Dave
 

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Gadget said:
If you are going to play on the dyno try different gaps. Try .044 and .050" with those IK22 plugs.

If this is for test purposes only I see the benefit of this, but When I gapped my plugs I used a regular filler gauge and it was way off. They were all gapped to about 0.047. I would get intermittent missfire CEL blinking. I regapped them with a wire gauge to 0.044 and haven't gotten the missfire CEL blinking since.
 

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Discussion Starter #7
Not really gonna play on the dyno Gadget. I am trying to get the most out of it I can with the least timing retard. I just want to get it close enough to be able to get you to finish it off for me. That is possible right? So should I stick to the .032 or try the .044 or .50? If the truck does not like the gap will it let me know right away? Thanks Gadget and the check is in the mail to Brian

Sam
 

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DCabTaco said:
If this is for test purposes only I see the benefit of this, but When I gapped my plugs I used a regular filler gauge and it was way off. They were all gapped to about 0.047. I would get intermittent missfire CEL blinking. I regapped them with a wire gauge to 0.044 and haven't gotten the missfire CEL blinking since.
What kind of plugs are you running?
 

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Discussion Starter #9
I am running the IK20's gapped at .032 now. That is what the 7th injector kit listed as required for install. They have a good amount of miles on them(17-18k miles) of hard driving,towing,and to say the least have not had any real time or funds to get it tuned properly to say that these plugs are still in pretty good shape not tore up. Just want to get the most out of it now while I can.

Sam
 

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Discussion Starter #11
Yeah those are the ones I am gonna try. I think Super Doody was talking to me a your link was to carify things.

Sam
 
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