Car stutters

[Dhayes]

Has anyone else had an issue with having jb4 map 2 and adding octane booster and the vehicle starting to sputter.? I remove jb4 and disconnected everything and vehicle still sputters when accelerating past approximately 50 mph. I have not recap the spark plugs to .024.

 

[Kato_the_kia_stinger]

Has anyone else had an issue with having jb4 map 2 and adding octane booster and the vehicle starting to sputter.? I remove jb4 and disconnected everything and vehicle still sputters when accelerating past approximately 50 mph. I have not recap the spark plugs to .024.

Sounds like plugs. You aren’t running stock plugs, are you?

 

[Dhayes]

Yes, stock plugs. Even when jb4 is not plugged up.... it still does it, I was told from the dealership that is nothing they cannot duplicate it. The same day I took it back from the dealership after being left there for a day it happened again and they said it could possibly be a bad batch of gas?? I've never heard of a bad batch of gas before for any of my vehicles

 

[ChaneRZ]

I think the plugs are shot. How many miles with JB4 map 2 and stock plugs?

 

[Dhayes]

Current Odometer reading= 22300
Ran it with JB4 approx. 200 miles TOTAL.
Dealership, when I took it in said they could not duplicate the issue (they drove my vehicle for 30miles on different modes) I was explaining. I am going to take it back in tomorrow morning. We shall see what they say. To re-gap my spark plugs to .024, they want to charge me $350 just for labor....

 

[ChaneRZ]

If you are going to re gap your plugs, might as well get the Denso or HKS one. Map 2 was probably too much for stock plugs and gap.

I’m running map 1 with my stock plugs and gap. No issues so far. Waiting for the HKS plugs from K8stingerstore.

 

[Dhayes]

My stinger will be going to the dr on monday. Main techs rather than the weekend techs will be in to see what the issue is.
I do need a step better plugs. I can't afford then at the moment.

 

[Terry@BMS]

Has anyone else had an issue with having jb4 map 2 and adding octane booster and the vehicle starting to sputter.? I remove jb4 and disconnected everything and vehicle still sputters when accelerating past approximately 50 mph. I have not recap the spark plugs to .024.

If it does it without JB4 sounds like a damaged plug, damaged or lose coil, or fuel injector issue. We've seen all three but usually it winds up being a damaged plug or coil not properly reinstalled.

 

[Dhayes]

So with upgrading the spark plugs.... Would you guys recommend getting the "ready to install(hks45.... I think are the ones) or getting factory plugs gapped to the .024?
This problem is kicking me in my arse

 

[Terry@BMS]

I suggest gaping any plug you install to 0.022. Denso, OEM, HKS, etc. We have a good gapping tool on our website.

 

[turboAWD]

So it's down to 0.022 now? 0.024 to 0.026 seems to be stuck in my brain...

 

[Dhayes]

With gapping the spark plug to a different spec. other than the OEM size. Will that cause any problems for the rods or anything in the future? I want to maintain my vehicle warranty as long as possible.

 

[Terry@BMS]

No issues at all.

 

[Danielegov]

No issues at all.

Is it OK to Gap them to 0.024 to be on the safe side?

 

[monusa]

Smart thing, just wait for the HKS plugs and run gap at 0.022. there is a reason...too much info to post in a reply.....as posted in a different thread, i have run into bad gas but stick with Terry's suggestion....I couldn't wait to hook up JB4 either after i got it but waited on the plugs. Amazon has them also but they go quick!!