Hesitation and surging

nissan
maxima

#1

1990 Maxima. The car hesitates/surges occassionally after warm start, but only surges for about first 1/4 mile, then its OK. Sometimes it idles low, especially when I come to a stop and apply brakes hard. I believe the two issues are related. This has been getting progressively worse over past few years.


#2

It could be any number of things. Your check engine light is probably lit. Get the codes read for you and get back to this site with those codes.


#3

If you are lucky, you can probably change the oxygen sensor and fix the problem. No guarantee but it worked on those old cars before. 1990 is close to 1987.


#4

Thanks for the reply, I was thinking it might be O2 sensor…i already changed air flow meter, replaced fuel filter, throttle position sensor, cleaned throttle body and injectors.