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Cylinder 2 misfire cold start
20 Nov 2023 19:34 #252245
by Dimitris
Cylinder 2 misfire cold start was created by Dimitris
Hello
I got a Jimny 2005 and I have an issue. When the weather is cold the car in the morning starts easily but its not sounds well. If i press the gas pedal between 1500 and 2000 rpm the engine light is blinking. If the car get warm then it works just fine. The scanner shows the error "misfire cylinder 2". Does anyone experienced something similar?
I must say that I have already replace spark plugs and coils.
I got a Jimny 2005 and I have an issue. When the weather is cold the car in the morning starts easily but its not sounds well. If i press the gas pedal between 1500 and 2000 rpm the engine light is blinking. If the car get warm then it works just fine. The scanner shows the error "misfire cylinder 2". Does anyone experienced something similar?
I must say that I have already replace spark plugs and coils.
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20 Nov 2023 23:47 #252252
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
What did the old plugs look like? Was the plug from cylinder 2 a different colour to the others?
2020 blue SZ5 (one of the last to be registered in the UK)
Ex 2011 Blue Jimny SZ4
Northumberland Jimny Blog
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21 Nov 2023 12:57 #252265
by Dimitris
Replied by Dimitris on topic Cylinder 2 misfire cold start
I am not sure about the colour. I thought about the injector on cylinder 2 but it works good when it's warm. What sensor finds the misfire on cylinder?
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21 Nov 2023 13:24 #252267
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
Misfire is usually detected by the crank position sensor, it expects to see the 'kick' in rotational speed for each firing and if it doesn't it knows it was a misfire. It then uses the crank position vs the spark plug firing to know which cylinder didn't fire.
The reason for asking about colour was looking for cylinder head gasket, rings, or a sticking valve, but if it runs fine when warm you might not notice any difference in plug colour.
It could be a faulty injector, that works well enough when warm but is sluggish when cold.
I take it you battery is well charged?
Robin
The reason for asking about colour was looking for cylinder head gasket, rings, or a sticking valve, but if it runs fine when warm you might not notice any difference in plug colour.
It could be a faulty injector, that works well enough when warm but is sluggish when cold.
I take it you battery is well charged?
Robin
2020 blue SZ5 (one of the last to be registered in the UK)
Ex 2011 Blue Jimny SZ4
Northumberland Jimny Blog
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- rogerzilla
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21 Nov 2023 13:52 #252271
by rogerzilla
Replied by rogerzilla on topic Cylinder 2 misfire cold start
The crank position sensors are a known point of failure, snd fairly cheap and easy to replace.
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21 Nov 2023 14:33 #252274
by Dimitris
Replied by Dimitris on topic Cylinder 2 misfire cold start
The battery is new. I will start withe the injector and then the crank position sensors
Thanks a lot
Thanks a lot
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