Nissan Car Lounge - Almera, Juke, Latio, Qashqai, Sylphy, Teana Owners > Latio

Spark Plug

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aerosignal:

--- Quote from: kspchew on August 25, 2008, 05:45:46 PM ---The problem I faced is that I need to remove the entire manifold to gain access to the spark plug. So I am intending to get AS to change the plug for me during my 50k servicing.

 :( seems like latio spark plugs are too special, can seems to use other types

--- End quote ---
Yup, can only use the Denso iridium plugs. Even the size is quite special. I am trying to finding the spark plug socket and the size is apparently more for motorcycles and ATVs. Not easy to find. Because it is small diameter and thin wall.

Jazz:
Why wanna reduce the gap ? Better ignition or anything contribute to FC ?

kspchew:

--- Quote from: Jazz on August 25, 2008, 10:24:18 PM ---Why wanna reduce the gap ? Better ignition or anything contribute to FC ?

--- End quote ---

I am running on CNG, reducing the gap will have a better ignition and hence smoother ride. currently experiencing intermittent jerking. :(

aerosignal:
Er, why do you suspect the spark gap is too big?
My advise is bring your car to the CNG installer and ask them to troubleshoot.
Intermittent jerking can be caused by several factors.
Reducing spark gap only works if a lack of spark is causing the problem. Unless your spark plugs are really worn, this should not be a problem.
If it is no ignition, (got spark but fuel don't burn) then the spark gap is too small. In this case, increasing the spark gap will be better (longer spark). I don't think this is the problem because CNG has lower ignition point (easier to burn).
If the intermittent jerk is when going uphill, then there is also the possibility of a loose spark plug connection.

Unfortunately, I don't know enough about the CNG system installed here to help any further. Advise is still to go to the installer.

Xmen:
An additional ECU was installed for CNG system. It is normally located next to the battery terminal. The installer need to put in the right settings for your make and model. You need to seek the installer advise to fine tune if your car is fitted with other mod.

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