Infiniti Q40 service by top-rated mechanics at the convenience of your home or office

There are software updates, and at least one specific Technical Service Bulletin, pertaining to the vehicle safety systems you note. All updates (re-programming) should be installed before, or during, any diagnostics because such may have an impact. There may also...

Hi, thanks for writing in. Yes, that will not be a problem at all. If the coil is tested and is within spec there is no reason to replace it at all - I recommend using it. A fouled spark...

Hi there. When the codes P0420 (https://www.yourmechanic.com/article/p0420-obd-ii-trouble-code-catalyst-system-efficiency-below-threshold-bank-1-by-jamahl-walker) and P0430 (https://www.yourmechanic.com/article/p0430-obd-ii-trouble-code-catalyst-system-efficiency-below-threshold-bank-2-by-spencer-clayton) come up, usually the catalytic converter has failed, but before you determine if you need to replace the catalytic converter, consider checking the following: A damaged or failed oxygen sensor...

Many vehicles have a safety feature built into the vehicle’s computer system which will shut the engine down completely or trigger a “safe mode” of some kind which will drastically limit the vehicle’s engine power or in some cases shut...