Cylinder 1 misfire

Squelch · Dec 30, 2022

2016 Xc90 T6 Momentum, 140,000 miles. All coils and plugs replaced after misfire developed during cold temps..9 degrees. Now my foxwell scanner in live data mode shows Cylinder 1 is still having issues. Thinking about injector replacement but I haven't found any resources or tutorials for doing that job. Any advice would be great. Thanks in advance.

Pioneer4x4 · Dec 30, 2022

Squelch said:
2016 Xc90 T6 Momentum, 140,000 miles. All coils and plugs replaced after misfire developed during cold temps..9 degrees. Now my foxwell scanner in live data mode shows Cylinder 1 is still having issues. Thinking about injector replacement but I haven't found any resources or tutorials for doing that job. Any advice would be great. Thanks in advance.

Swap coils around, see if the misfire moves.

DJ7676 · Apr 28, 2023

Did you ever find anything on this issue. Same problem here. I moved spark plug and coil to cylinder 2 to see if that was the issue with no luck. Problem still exists in Cylinder 1. Thanks!!

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reeg2 · Apr 28, 2023

My 2016 had a leaking fuel injector - took the dealer forever to figure it out, but that was source of myriad of problems related to misfires.

yettavr6 · Apr 29, 2023

If its not and injector, cold misfires can be carbon buildup, especially at that mileage.

Trixstar · Apr 30, 2023

I would do injectors and walnut blasting to clean the carbon.

trizzuth · Oct 1, 2024

Interesting.... having a Cylinder 1 misfire myself right now, code doesn't move when the coil or plug is moved. Swapping plugs soon, then will have to see what's up.

Trixstar · Oct 1, 2024

I don’t think this is an easy fix. Do you have an oil consumption issue? This can be the beginning signs of a major costly problem. 2016 was a bad year

trizzuth · Oct 1, 2024

mine is a 2017 model year, zero oil consumption issues. Not the bad year XC90

Trixstar · Oct 1, 2024

trizzuth said:
mine is a 2017 model year, zero oil consumption issues. Not the bad year XC90

oh that’s good. So there probably isn’t too much carbon buildup. This might just be a fuel injector issue then. Phew

Cylinder 1 misfire

Squelch

Pioneer4x4

DJ7676

reeg2

yettavr6

Trixstar

trizzuth

Trixstar

trizzuth

Trixstar

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