nmfiredawg

No the lock actually broke off, still able to lock two of them, just the clip broke off, did them all accept the drivers rear because couldn't get it to come loose and didn't want to break that tab too. All the plugs coming out were at .045 or so.

Heishman

Did you watch the videos from CoreyMS in post #8 of this thread? They helped me the first time I did it.

https://www.f150forum.com/f70/eco-sp...7/#post1987593

nmfiredawg

yeah I did, first one came off great, after that just went to crap. Went back watched a couple of more times, and didn't understand what I was doing wrong.

borjeb

I couldn't he the driver rear out either, I pulled the coil with the wires still attached. The pass side coils and clips were all very easy. Driver side was different story. Felt like I was gonna break the coils getting them out.

nmfiredawg

I was in the same boat didn't want to break that one off. I started it back up and had forgot to reattach the connection above the rear drivers side and boy did it run rough, stall when hitting the pedal. Figured I had broken a connection of something. Then with my old age remembered that I forgot to plug the connector back in. Now it purrs.

lanmorga

Hey all,

I have one of the gas guzzler Ecos - averaging about 13-14mpg with average driving and I don't even want to mention my MPGs if I drive mildly aggressive.

I just recieved my MPT custom tunes for my SCT. Upon WOT, there is MAJOR misfiring and it loses most of its power at the higher end of the RPM range. Got the rough idle too.

SOOOooo, I will be changing my gaps to .032 hopefully tomorrow. I am almost positive that the gap change will cure my misfire and idle. My HOPES are that my MPGs will improve too

---------------------------------

I should mention... I have a 2012 FX4 built Feb. 2012 ~9000 miles. Aftermarket: Airaid CAI, 4" AFE Cat-back exhaust, and as mentioned above the MPT custom tunes on the touch-screen SCT.

I plan on Dynoing soon as well

lanmorga

The thing was a gas guzzler prior to any mods as well. Figured I'd get ahead of the mod-enduced theories

yokev

I doubt very seriously your plug gap(s) are responsible for a WFO/high-rpm miss/loss of power that appeared only after you installed a 'custom' tune.
If it were your plug gaps, you'd experience the same thing with the stock mapping/'tune'. The aftermarket mapping/'tune' changes your air-fuel ratio(among other things), and what I'm understanding from your description( at full-throttle and/or high-rpm you experience a severe 'Miss' and MASSIVE loss of power), it sounds like you've got a jacked-up AFR at what sounds like BOTH full-throttle AND high-rpm "Cells"/Settings.
You're the one experiencing it, but I'm concerned that what you're calling a 'Miss' could actually be detonation-B-A-D-since you say that pretty-much all Hell breaks loose at WOT and/or high-rpm. Obviously I can't tell you what it is, as I'm not there. I just suggest erring on the side of caution in case it IS, and uninstalling that particular tune/map.
If it's a NEW programmer, you might wanna install one of the "Strategy" tunes, just to further isolate the problem to the 'Custom' tune, and take the programmer itself out of the equation.
Right after I removed the Offending tune/map from my ECU, I'd be contacting the company that sold it to me and letting them know what happened.

Centexguy

I'd call MPT up and talk to them. They are great guys and will help you out however they can.

MorePowerTuning

I appreciate your concern and respect your guidance to the person above but you are off target on this one. What you have to think of when tuning a turbo calibration is level of boost. If you are familiar with superchargers and blowers you can compare it to changing the pulley.

Any modification that increases boost may need to be addressed with a smaller plug gap or colder plug to prevent spark blow out and wot miss fires. This is also the reason it doesn't happen stock. The stock tune is not hitting the levels of boost we are hitting in our custom tune.

The air fuel and spark that you mentioned checking are spot on and especially good since these vehicles have really solid dual widebands from the factory that allow it to stay closed loop even at wide open throttle. We actually richen the mixture up over the stock setting at wot again to help address the increased boost level.

When we send our custom tunes out we recommend regapping the plugs in the email because we've been doing this since the 2011 Ecoboost came out and have grown to know the limits of the stock plugs and gap. Some of you may also be aware that ford has actually released a revised plug for the ecoboost with a narrowed gap. There are several TSBs to address rough idle, loss of power at wot and cutting out under heavy acceleration.

Hopefully you don't take this response the wrong way, but it is important that other Ecoboost owners know the facts on this one and the fact is that spark plug gap is very important on these trucks, period. Especially when you have a tune installed that increases boost levels.

Lastly, for those taking plugs out to regap, make sure you only tighten to 11ft lbs. That is a much lighter torque than you would think. Too tight and you will crack the porcelain on the plug and it will be worse than before you took them out, requiring a new plug to be installed. I learned this one the hard way on my personal 2012 Ecoboost F150.

Mike @ MPT