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internal88, ASE Certified Technician
Category: Nissan
Satisfied Customers: 2595
Experience:  I have been working in the technican for over 15 years. I am an expert in diagnostic.
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2006 nissan quest...the number 3 was setting i

Customer Question

2006 nissan quest...the number 3 was setting i replaced all the plugs and placed the coil pack from three on number the quest is idling rough when i drive it it runs better but still slightly missing
JA: Is the rough idle intermittent or consistent?
Customer: 3.5
JA: Are you fixing your Quest yourself? What have you tried so far?
Customer: yes and read above
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 1 year ago.
Category: Nissan
Expert:  internal88 replied 1 year ago.

Hello, I'm Brandon- Nissan tech.

Did you use a factory Nissan coil not aftermarket coil?

There are only 3 things that can cause this to happened.

1. Bad coil

2. Bad injector on cylinder 3. Check for injector pulse on cylinder #3 to see if the ECM is pulsing the fuel injector. Ohm the cylinder #3 fuel injector - specification is 13.5 - 17.5 ohms.

3. The timing chain jump a tooth.

Please rate me positive. Let me know if you have further questions.