Need spark plug gap help

[Ragingred]

I recently changed my spark plugs and used the Ford Performance cold plugs. Description on stage3motorsports states that the gap is set at .031. I recently had a cylinder 1 misfire causing the truck to shake and lose almost all power. Pulled off the road and checked everything I could without tools and started it back up and no CEL but it stored the misfire code. Would that be caused by the gap being off? I have seen on here a lot of guys are setting gaps to .028. Any help would be appreciated

 

[JasonVoorhees]

Mine are set at .028 per JDM Engineering

 

[thatJeepguy]

.031 is fine on my rig . Maybe you have something else going on like a bad tune, not enough intercooler , injector , wrong gas for your tune… Could be a coil… have to troubleshoot. How many miles on the and what mods?

 

[Ragingred]

.031 is fine on my rig . Maybe you have something else going on like a bad tune, not enough intercooler , injector , wrong gas for your tune… Could be a coil… have to troubleshoot. How many miles on the and what mods?

I have 70k on the truck. I had a Cobb FMIC, AMS turbo inlets, 180 thermostat, replaced the plugs with the ford performance cold plugs, and am running a MPT 93 PRX map. Had those mods for about a month now with zero issues. Running only 93 octane, always have even before the tune.

 

[blwn]

Easy troubleshooting would be to move that coil pack to a different cylinder and see if the misfires follows. It's possible you have a damaged plug, but if you've been running the plugs for a month that is more doubtful

 

[Ragingred]

Easy troubleshooting would be to move that coil pack to a different cylinder and see if the misfires follows. It's possible you have a damaged plug, but if you've been running the plugs for a month that is more doubtful

Yeah I think I’ll give that a try. Maybe pull the plug from cylinder 1 while I’m taking that coil off and just have a look for any obvious damage. I’ll update once I give that a go.

 

[Coop65]

Definitely according to what tuner/map you are running you will see different recommendations on gap.... I know this is an old thread just curious as to what OP ever determined ??

 

[Donovan]

If my plugs are not .028, would this cause the engine kinda buck under load or boost?

 

[Badgertits]

They’re not that sensitive to the spark plug gap, something else is up.

 

[The Car Stereo Company]

They’re not that sensitive to the spark plug gap, something else is up.

who knows. they could be gapped at .100