Post by
csoluri92Q »
https://forums.nicoclub.com/csoluri92q-u389.html
Sun Mar 30, 2003 8:07 am
I just started getting this code on my wife's 1999 Maxima and can't seem to figure out the problem. I know this is the Infiniti forum, but you guys seem to know your stuff better than what I have read in the nissan forum. Of course, this is the first real problem with the car which is only 700 miles out of warranty. Go figure.
The Hanes manual does not really describe what would cause this code 21 problem. The "engine light" has come on several times at start up, where the engine will idle roughly, almost like its missing. The "engine light" has also come on while driving, giving the same code 21 and rough idle. I checked the battery connections, as well as tested all the coils, which check out fine. I know the problem is intermittent at the moment, but it is happening every other time the car is used. Does anyone else have some insight as to what else could cause this? Maybe a faulty PCM?? Bad batter cell (not tested that yet)??
Thanks!!