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Ron, ASE Certified Technician
Category: Infiniti
Satisfied Customers: 35627
Experience:  35 year as a ASE Tech
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Check engine light and tachometer and speedometer all the

Customer Question

Check engine light and tachometer and speedometer all the way full bore and then half over at idle. they are just not accurate.
JA: Does the light stay on, or does it blink?
Customer: Stays on.
JA: What is the model/year of your Infiniti?
Customer: 2007 QX56
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Yes, I purchased it like this.
JA: Anything else you think the mechanic should know?
Customer: 137,000 miles
Submitted: 1 year ago.
Category: Infiniti
Expert:  Ron replied 1 year ago.

Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here. If you check engine light is coming on then the place to start is to connect a scan tool and scan the computer system to see what the fault code and or codes are that should be setting when the light is coming on. If you can get this done and post back with the results I will see if I can help you from there.