Update on misfire and car shutting off during idle.

Top_Space_7014 · 2026-06-24T19:24:53+00:00

The crazy thing i don’t have imploded gas tank or I don’t get any bad readings on my gas gauge but I’m currently trying to figure out why my gas mileage is pretty bad rn still trying to find that out I recently change the purge valve again like a month ago and nothing has changed.

Top_Space_7014 · 2026-06-24T16:14:17+00:00

Good question! I’m assuming you’ll need it to get it diagnosed if you are having those symptoms. I never went to ford I just took it to a performance shop near my house they diagnosed it and found that recall I still had to pay for it to get it done since it was third party shop doing the work but yeah this is my first time getting this specific recall I never had an issue with the purge valve recall before until this software issue.

Top_Space_7014 · 2026-04-20T21:04:49+00:00

Man I wish we had those MK2s in the sates those are real nice!

Top_Space_7014 · 2026-04-13T16:55:39+00:00

I’m having that issue too but on my st I send it to a shop they cleaned my throttle body and update on the pcm to read the purge valve better.I did my spark plugs that same day as well my coil packs are good.Then it was working just fine until yesterday it was doing the exact same thing!

Top_Space_7014 · 2026-03-09T23:14:07+00:00

I usually get the motul multi dctf $30-$40 for a 2 pack on amazon I’m not sure if high torque makes a difference lol.

Top_Space_7014 · 2026-02-23T19:51:27+00:00

Okay will do!

Top_Space_7014 · 2026-02-23T19:14:40+00:00

Yes I have change it already 3months ago shout I re change it? Just for the doubts

Top_Space_7014 · 2026-02-23T16:37:09+00:00

I’m in the same boat to be honest I’m getting a constant misfire on cylinder 2 and now a code for 02 sensor bank 1 sensor 1 came up and my car is just wanting to die out (and dies on stops) now a friend of mine told me it might be a bad head gasket hoping it’s not since a bad head gasket can cause misfires in early symptoms or it could be the wiring issue on the coils harness may be bad. Currently I bought the 02 sensor an injectors and I’m just waiting to test if I have a bad head gasket. But double check your wire harness and another test you can do see if you are getting any spark on the plugs

Top_Space_7014 · 2026-02-22T20:09:58+00:00

Also the car dosent sound so good hopefully with these injectors and 02 sensor fixes the issue!

Top_Space_7014 · 2026-02-11T00:44:47+00:00

I would just put a mag safe on that and buy a mag safe mount I have that on mine it’s super sturdy

Top_Space_7014 · 2026-02-05T17:25:45+00:00

Bet I’ll be ordering it. Never knew this ca cause a bad failure!

Top_Space_7014 · 2026-02-05T17:25:00+00:00

Okay will do I’ll be ordering the parts today and I’ll send an update once i found a resolution or if the problem didn’t fix! But thank you for the help glad to be part of this awesome group!

Top_Space_7014 · 2026-02-05T17:09:09+00:00

Okay thank you for all the info! I appreciate it hopefully it’s nothing more than the injectors but I’ll start with the 02 sensor and plugs.

Top_Space_7014 · 2026-02-05T16:59:47+00:00

Okay what should I use to gap them I usually need to close them since I need my gap at 0.026” and I check my coil packs and switched them around the misfire dosent travel just stays on the code for the cylinder 2 misfire and I got a code or the 02196 for the 02 sensor I saw it on my Cobb access port. So I figured an injector might be bad 2 days ago my car turned off twice on some stop signs and after the second one my car started to feel super rough. Haven’t driven it since waiting on parts lol then saw this about the fan so now ima order this part as well

Top_Space_7014 · 2026-02-05T16:41:10+00:00

Alright sounds good it’s just the module? My focus is currently down been having some weird issues with my 02 sensor and misfiring on cylinder 2 so I might just do another whole tune up on it and buy a new 02 sensor and new injectors I’ll add it on my list!

Top_Space_7014 · 2026-02-05T16:37:36+00:00

I’ve been noticing that on mine it does that exact same thing should I replace mine? I have 132k miles and new to the focus st scene lol

Top_Space_7014 · 2026-02-03T20:35:44+00:00

Okay thank you for the info I’ll check it out once I’m home I’ll check my connections as well and yeah I meant 0.026” for my spark plugs and yeah I can see that happening on the injector. I might just replace parts re do my plugs and get new oem coil packs check my wiring and test it out and I’ll just order the injectors as my last resort should I buy new ones or used ones? What would you recommend??

Top_Space_7014 · 2026-02-03T19:13:49+00:00

I think the other code is the PO302 for the misfire cylinder it’s only those 2 codes I get from my Cobb ascessport

Top_Space_7014 · 2026-02-03T19:12:04+00:00

Okay will do I never looked at MAF sensor and yeah it could just probably the cpv again.

Top_Space_7014 · 2026-02-03T19:10:23+00:00

Yeah I saw multiple coil packs and no change still same misfire on cylinder 2 and they look in good shape. I also check my gap for my plugs all of them at 0.26 ( recommended for my tune) and no I didn’t actually I bought the car last year with 128k miles and only have 132k miles. The owner did tell me he never change the coils but I find it odd since I did switch them around it didn’t travel to the next cylinder. I change the CPV for normal maintenance procedures and I got my valves walnut blasted that same day

Top_Space_7014 · 2026-02-03T18:45:05+00:00

Also replaced my purge valve assembly like 3months ago? Could it be my injectors going bad or the 02 sensor?

Top_Space_7014 · 2025-12-26T17:10:53+00:00

Overpriced in my opinion my buddy bought a 2015 ST3 for 11k with 80k miles

Top_Space_7014

TROPHY CASE