misfire again !

[Nizar]

hi again i have a misfire problem just when the engine is cold when i start the engine the check engine light blinks for 5 minutes then everything is ok and normal

is there another part in the engine can cause misfire ?? checked all sparks coils and no codes stored its like magic

thank you all

 

[Wooluf1952]

If the CEL is blinking, there should be a code.

How do you know it is a miss if there is no code?

Do you have a code reader connected when this happens?

Can you try a different code reader?

 

[The_Roadie]

How many miles, and have you changed spark plugs yet? Checked the spark plug wells for contamination - water or oil?

 

[Regulator]

What plugs are you running? This vehicle is very picky on what plug will run correctly.

 

[Nizar]

What plugs are you running? This vehicle is very picky on what plug will run correctly.

iam using acdelco 41-103 and i think they are good coz i changed them last year

 

[Nizar]

How many miles, and have you changed spark plugs yet? Checked the spark plug wells for contamination - water or oil?

View attachment 18121

maybe 2moro i will check the sparks but i think its the coil coz i cleared the code and till now no problems

 

[Nizar]

If the CEL is blinking, there should be a code.

How do you know it is a miss if there is no code?

Do you have a code reader connected when this happens?

Can you try a different code reader?

View attachment 18122

finally after 2 months the reader got the code but its a pending code not stored what that means ??

 

[Wooluf1952]

The P0301 is a problem withe cylinder #1.

As Roadie asked; Did you check the plug well for water or oil?

If the well is clear, it could be the coil, the injector or the spring from the coil to the plug.

 

[Nizar]

The P0301 is a problem withe cylinder #1.

As Roadie asked; Did you check the plug well for water or oil?

If the well is clear, it could be the coil, the injector or the spring from the coil to the plug.

there was so much water into the cylinder how !!??

 

[khill]

If it's water, the seal on the coil isn't doing it's thing right. Try getting a replacement or putting some silicone/gel on it to help it along. Shtuff happens, at least it wasn't oil!

-Khill