Close
Q:

gapping the spark plugs on 1990 Infiniti Q45

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
what should the plugs be gapped at
(1) Answer
| |
The spark plug gap should be ..039" to .043" of a inch. The Iridium or double Platinum plugs come pre set.
I like the Q45 but have seen random misfire caused by bad ignition coils, bad injectors, and or bad ECU (computer). I hope your car has no problems and you are just performing maintenance.