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Cylinder 2 misfire cold start
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21 Nov 2023 19:44 #252279
by DrRobin
2020 blue SZ5 (one of the last to be registered in the UK)
Ex 2011 Blue Jimny SZ4
Northumberland Jimny Blog
Replied by DrRobin on topic Cylinder 2 misfire cold start
I doubt it’s the crank position sensor, a faulty one wouldn’t give a misfire on cylinder 2 only, it’s would be on different cylinders.
If it is only on cylinder 2 then it is going to be something specific to cylinder 2. You have changed plugs and coils, so an injector is the next thing, unless there is something more seriously wrong with cylinder 2.
If it is only on cylinder 2 then it is going to be something specific to cylinder 2. You have changed plugs and coils, so an injector is the next thing, unless there is something more seriously wrong with cylinder 2.
2020 blue SZ5 (one of the last to be registered in the UK)
Ex 2011 Blue Jimny SZ4
Northumberland Jimny Blog
The following user(s) said Thank You: Dimitris
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21 Nov 2023 20:22 #252281
by Phaeton
Replied by Phaeton on topic Cylinder 2 misfire cold start
Swap the plug, injector & coilpack from No 2 with another cylinder & see if fault follows, if it does you're down to the 3 items, if it doesn't it could well be mechanical.
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21 Nov 2023 21:02 #252282
by facade
If it suddenly breaks, go back to the last thing that you did before it broke and start looking there
Replied by facade on topic Cylinder 2 misfire cold start
Do a compression test when cold and see if cylinder #2 is lower than the others.
A burnt exhaust valve will cause enough compression loss for a missfire at idle, but seem to get better when the engine is running at speed.
A burnt exhaust valve will cause enough compression loss for a missfire at idle, but seem to get better when the engine is running at speed.
If it suddenly breaks, go back to the last thing that you did before it broke and start looking there
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28 Oct 2024 19:00 - 28 Oct 2024 19:26 #258080
by Dimitris
Replied by Dimitris on topic Cylinder 2 misfire cold start
Hello again. Now that the temperature in the morning is near water freezing point the problem appears again. Compression test is ok. New spark plugs and coils. Swap the injectors with no difference. Compression is ok. When the engine gets hot , it runs just fine. Any idea by someone? Thanks
Last edit: 28 Oct 2024 19:26 by Dimitris.
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29 Oct 2024 04:20 #258084
by Lambert
Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!
Replied by Lambert on topic Cylinder 2 misfire cold start
Are the spark plugs correctly torqued and the plug leads correctly and firmly seated on the plugs
Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!
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29 Oct 2024 04:37 #258086
by Dimitris
Replied by Dimitris on topic Cylinder 2 misfire cold start
Yes. I check it many many times
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