Rough idle(every 30 seconds)
#1
Rough idle(every 30 seconds)
My 2000 Maxima idles rough for exactly 30 seconds then idles smooth for 30 seconds. I've timed it and its exact. It sometimes dies during the rough idle period. Any ideas as to the problem? Engine light has not come on and no codes.
#2
Interesting. If it was my car, I would check the battery voltage and see if it also goes up/down in sync with the car irregular idle. Of course, the next question is "What is the cause and what is the effect?", but checking the voltage is a place to start.
#6
Use a code reader and check live data. Look specifically at the O2 sensors and see if their readings consistently change with the idle.
I'm going to assume you've got a vacuum leak.
I'm going to assume you've got a vacuum leak.
#9
Crazy thing is iVe got the same issue right now and still can’t solve it, been ongoing for like 2 months now
#12
#13
Hitachi IACV
My 2000 was doing the same thing but only when is was below 40°F. I replaced the IACV with a cheap 1 from Amazon. Actually made it worse. Bought the Hitachi IACV & it fixed it.
#14
AC is off
However, I'm getting a code for random multiple cylinder misfires. Prior to this I had an ECM failure. The ECM was sent out and repaired and I also replaced all 6 ignition coils and spark plugs. Obviously to get to the back three cylinders the intake had to come off so even though I'm pretty sure everything got hooked back up I'm hoping a vacuum line got left off somewhere. Wishful thinking of course though lol
However, I'm getting a code for random multiple cylinder misfires. Prior to this I had an ECM failure. The ECM was sent out and repaired and I also replaced all 6 ignition coils and spark plugs. Obviously to get to the back three cylinders the intake had to come off so even though I'm pretty sure everything got hooked back up I'm hoping a vacuum line got left off somewhere. Wishful thinking of course though lol
Last edited by Jarsituation; 10-19-2021 at 11:00 AM.
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