Crigsta
New Member
- Messages
- 16
- Location
- melbourne, victoria, Australia
G'Day Guys, been chasing an intermitent cold idle issue for the last 6 months.
most of the time when i start the ute cold, the 1uz's idle hunts up and down from around 1200rpm to 300rpm (nearly stalling each time). you can get it to stabilize if you give a light touch of the accellerator and ease it back down to idle slowly but as soon as you rev it again, it starts pulsing up and down. Once it warms up for a few minutes it idles at the normal cold 1000-1200rpm and idle is fine even when revved agressivley.
things i have replaced:
New plugs
new ECU temp sensor
second hand rebuildable IACV (functions fine).
Any suggestions guys?
VIDEO: stone cold startup: http://youtu.be/t5VokKdlDTY
2ND VIDEO: after 5mins of running: http://youtu.be/Jrw0G85sXpg
most of the time when i start the ute cold, the 1uz's idle hunts up and down from around 1200rpm to 300rpm (nearly stalling each time). you can get it to stabilize if you give a light touch of the accellerator and ease it back down to idle slowly but as soon as you rev it again, it starts pulsing up and down. Once it warms up for a few minutes it idles at the normal cold 1000-1200rpm and idle is fine even when revved agressivley.
things i have replaced:
New plugs
new ECU temp sensor
second hand rebuildable IACV (functions fine).
Any suggestions guys?
VIDEO: stone cold startup: http://youtu.be/t5VokKdlDTY
2ND VIDEO: after 5mins of running: http://youtu.be/Jrw0G85sXpg