1998 Infiniti Q45 Problems

RepairPal has identified the most common problems with the 1998 Infiniti Q45 as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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Known Problems

If the car drives well at cruise speed, but lacks power while accelerating, there may be a problem with the fuel pump.

The crankshaft angle sensor or the camshaft position sensor can fail and cause loss of engine power, an engine that cuts out, and other drivability problems. This will cause the Check Engine Light to illuminate. Certain models have been involved in a recall to replace the camshaft and crankshaft sensors. For more information on this recall, please click here»

Intermittent failure of a purge control valve in the evaporative emission system can cause the Check Engine Light to illuminate. A failed valve should be replaced to correct this problem.


The ignition coil may intermittently fail and cause drivability problems.