Hesitating, randomly

JMWOODFAE

MEMBER
1998 NISSAN LUCINO
170,000 MILES

Car has been hesitating on and off for about six months now with no engine light coming on. Have had fuel filter replaced, air flow meter in throttle body replaced, 02 sensor replaced, spark plugs replaced, serviced, diagnosed by Nissan with no results. Please help.

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
42,949 POSTS

Hello,

This sounds like an intermittent PCM failure or the catalytic converter is coming apart sometimes clogging the exhaust system. Here is a guide to help check the catalytic converter:

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

This guide can help as well:

https://www.2carpros.com/articles/engine-hesitates

Please run down these guides and report back.