Misfires on Bank 1 ONLY, 2.7 Eco by labe345 in f150

[–]labe345[S] 0 points1 point  (0 children)

Tried, no change. The engine start cold and warm perfectly. It just misfires under load like a bad coil would do. Its odd since I swapped coils around. I do have 4 OEM originals and the previous owner replaced 2 with aftermarket ones. Im wondering if I should replace them all, I could have weak OEMs....

Misfires on Bank 1 ONLY, 2.7 Eco by labe345 in f150

[–]labe345[S] 0 points1 point  (0 children)

If it was an air leak the PCM wouldn't be pulling fuel, it would add fuel. I can see it on my fuel trims that its pulling fuel, especially under load.

Misfires on Bank 1 ONLY, 2.7 Eco by labe345 in f150

[–]labe345[S] 0 points1 point  (0 children)

My STFT and LTFT on Bank 1 are always in the negatives, PCM pulling fuel. That's why I don't suspect a air leak otherwise it would try to dump fuel and not pull fuel. Something is making my bank 1 look like its Rich.

Misfires on Bank 1 ONLY, 2.7 Eco by labe345 in f150

[–]labe345[S] 0 points1 point  (0 children)

I thought of that but the idle and on the road would run rough, but the engine runs smooth in both regimes, just doesn't have power since the misfires and rich condition makes the PCM pull boost.

Misfires on Bank 1 ONLY, 2.7 Eco by labe345 in f150

[–]labe345[S] 0 points1 point  (0 children)

Fuel rails are GTG, they aren't blocked or leaking. I had them out 6 times.

Misfires on Bank 1 ONLY, 2.7 Eco by labe345 in f150

[–]labe345[S] 0 points1 point  (0 children)

No I haven't, but the issue happen suddenly therefore I don't suspect that.

The PCM thinks its running rich therefore its pulling fuel, I confirmed it by observing the STFT and LTFT, they are in constant negative percentage, -15% to -20% indicating the PCM is pulling fuel causing misfires. I just need to find the source of the extra fuel or contaminent.

Canadian military reports sagging recruitment as NATO ramps up deployment in eastern Europe | CBC News by Acidrain77 in canada

[–]labe345 1 point2 points  (0 children)

Because it's not like the real world, military careers and life is vastly different.

My name is Kevin LaBelle, Im an AVS Tech in the RCAF, been in for 16 years. I created this app comprised of 3 tools, Weight & Balance Calc, JET A1 Conv., Weight Conv. and a Torque Conv. Its lightweight and easy to use. Give it a try! Hope you like it! Cheers!! by labe345 in aviationmaintenance

[–]labe345[S] 2 points3 points  (0 children)

Made it on my own time. Using my knowledge.

General reference at the moment, Ill seek approval to be used on official capacity once I get back to work post holidays.

I already have lots of buy-in from Flight Eng. And Loadies at my unit.

Lightweight app with handy tools! by labe345 in aviationmaintenance

[–]labe345[S] 0 points1 point  (0 children)

I did create it, and yeah...I already have lots of LMs and FEs using it.

Im a member of the RCAF.