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rpmdiag, Tech and Instructor
Category: Nissan
Satisfied Customers: 6701
Experience:  Since 1975
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Has misfire but no codes 07 Altima 4 cylinder

Customer Question

Has misfire but no codes 07 Altima 4 cylinder
Submitted: 2 months ago.
Category: Nissan
Expert:  rpmdiag replied 2 months ago.

Hi, welcome to Just Answer. I’m Ron and I’ll be helping you
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.

Okay, with that scenario, either the code reader/scan tool is not compatible with your system or your computer is bad for not recognizing the codes to set them. Once we get that corrected, we can then move on to find that misfire which can be ignition, fuel or compression.

Thanks, Ron

Thanks, Ron

Customer: replied 2 months ago.
Had it checked by someone this morning that works on Nissan showed no codes
Expert:  rpmdiag replied 2 months ago.

I know, nothing got fixed yet, so that would indicate a bad computer because it's not recognizing the misfire that the CRANK sensor is reporting. I'm sure their scan tool is working right at Nissan, at least I hope it is:)

Thanks again and please remember to rate me 5 stars and keep this link in case you still need me again later on.