Air Control Valve - 2000 Nissan Altima

2000 NISSAN ALTIMA

192,000 MILES • 3.0L • V6 • FWD • AUTOMATIC

JVREPAIR

MEMBER
27 POSTS

Hello i put a new air control valve and a new pcm and the car is still running the same. For example the rpms are still going up and down up and down and when you give the car gas it shuts off. i was just wondering if you guys could help me solve the problem thanks

Oct 15, 2015 at 6:57 PM

HMAC300

✓ASE Certified Mechanic
48,601 POSTS

Try cleaning throttle plate on both sides and iac hole with choke cleaner then check your fuel pressure with a gauge. Here are two guides to help us fix the issue.

https://www.2carpros.com/articles/how-to-replace-an-idle-speed-control-motor-iac

and

https://www.2carpros.com/articles/stall-at-idle

Please run down these guides and report back.

Oct 16, 2015 at 7:28 AM

WRD82

MEMBER
1 POST

I just bought a 99 altima. It sat 4 months b4 I got it. It had 2 be cranked for a bit b4 it started. once it started it was idling fine then all of a sudden it started to barely idle. It stalls when u first start it but once you give it gas it will stay idling. I would like 2 know if in fact it does sound like the Idle control valve and if so where would it be located on the engine?

Apr 13, 2020 at 10:47 AM (Merged)

RASMATAZ

✓ASE Certified Mechanic
75,992 POSTS

Try cleaning it out and adjust for minimum air also check and test the throttle position sensor and airflow meter

Apr 13, 2020 at 10:47 AM (Merged)

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.