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rpmdiag
rpmdiag, Tech and Instructor
Category: Nissan
Satisfied Customers: 6847
Experience:  Since 1975
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Why idle misfire..... this occure very rarely.... followings

Customer Question

Why idle misfire..... this occure very rarely....
followings are checked...
wire harness - replaced
injector -replaced
Throttle body replaced.....
egr valve replaced..
ignition coil checked...
spark plug checked....
fuel compressure checked....
pls help any issue.....
Submitted: 4 months ago.
Category: Nissan
Expert:  rpmdiag replied 4 months ago.

Hi, welcome to Just Answer. I’m Ron and I’ll be helping you today.
Before we get started though, Please understand that I don't know
your skill level or tools you have to assist us. Also understand that
I can't see, smell, hear, or touch the vehicle either, so patience is
appreciated. JA is a great Q/A site, but it does NOT replace a
repair shop.
My goal is to make you happy and get a great rating in return for
my time. Sometimes I have to give you bad news that I know you
didn’t want to hear, so please don’t shoot the messenger.

In most cases it is a vacuum leak. First find out what cylinder is misfiring via MODE 6 on the scan tool, then check above and below the cylinder for the vacuum leak.

Thanks, Ron

Expert:  rpmdiag replied 4 months ago.

Just following up to see if you have any more questions.

Thanks, Ron

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