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Hey guys, having 02 codes come up for failure to heat and so it’s time to change my upstream 02 plugs. I was scouting out my work area as the passenger side looks annoying to do on a 2018 GT. I took a picture of the back of the cylinder head with a pigtail, can anyone confirm this is the 02...

I hope it’s not the cam phasers. I had the same exact code happen. Ugh. I wouldn’t be surprised though, unfortunately.

Did you ever get an update?

Bump

Hey all, today when I started my car I began having insane idle fluctuations. It’d dip to 600 then surge to 900 and go back and forth. My afr and vacuum gauge also moved with the fluctuations. I am curious if anyone has had this issue. I’m thinking it’s the evap purge valve. I have no cel, then...

I think it is the switch. If I press really hard and hold it'll stay on, but if I let go it shuts off. I think contacts or switch. I'm absolutely annoyed by it now that only one side works ugh. :facepalm:

So, I was working on my 2018 GT and switching the old lights to LEDs. I got the driver side in and it turns on and off fine, but the passenger side won't turn on, if i repeatedly hit the button it will flicker but not stay on. I am not sure what happened or how to fix it.

I had a surge at WOT like what is explained. I have an 18 GT PP automatic, that is stock, and at WOT itll surge hard then continue with driving. It's odd, but i heard it could be the car is pulling timing.

Hey, I have a 2018 5.0 GT, and the surging your talking about is happening to me also. Tip in and itll go to redline and stutter and jolt the car before resuming throttle. I read it could be an ignition timing issue. I have a brand new motor after spinning a bearing. I was having occadional...