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- #61
I pulled the Idle Speed Control Valve / IAC (lower screw was a huge pain!) and while the valve itself looks decent, I tested it with a bench meter and it doesn't move in or out. Didn't realize it's a gear driven one and it holds the previous setting till it adjusts.
How common is this? It looks totally fine, even on the inside.
It pulls something like 0.7A at 14.3V, which feels about right to me. On all of the settings, S1-S4. Ohmeter was showing 20 ohms, like it should.
Applying a voltage will "lock" it in place and you can't push it in/pull it out by hand, but doesn't actually move it as I ground the various S-pins.
Part number: 22270-66010
Made a more detailed thread about the idle speed control valve here: Faulty 1FZ-FE Idle Speed Control Valve / IAC - https://forum.ih8mud.com/threads/faulty-1fz-fe-idle-speed-control-valve-iac.1305814/
I ended up doing this temporarily:
I took the motor shaft and put some rubber washers on both sides. On the side with the shaft to give it friction as it tightens in, and on the other side to set the depth. The depth was set by trial and error. It's a slightly high idle when warm and in neutral or park, and about 650 or 700 RPM when in gear. Not a bad compromise for the time being.
The rubber washers from a Harbor Freight kit, 67552. Mostly used the 8x14x4mm rubber washers.
I used electrical tape to seal the 3 holes, but silicone would be way better. Wasn't totally sure if this would work well enough, but so far it seems to.
I'm sure there's many better possible manual idle solutions, but this used what I already had pretty well. Will see how long it holds up, but hopefully I won't need it indefinitely.
How common is this? It looks totally fine, even on the inside.
It pulls something like 0.7A at 14.3V, which feels about right to me. On all of the settings, S1-S4. Ohmeter was showing 20 ohms, like it should.
Applying a voltage will "lock" it in place and you can't push it in/pull it out by hand, but doesn't actually move it as I ground the various S-pins.
Part number: 22270-66010
Made a more detailed thread about the idle speed control valve here: Faulty 1FZ-FE Idle Speed Control Valve / IAC - https://forum.ih8mud.com/threads/faulty-1fz-fe-idle-speed-control-valve-iac.1305814/
I ended up doing this temporarily:
I took the motor shaft and put some rubber washers on both sides. On the side with the shaft to give it friction as it tightens in, and on the other side to set the depth. The depth was set by trial and error. It's a slightly high idle when warm and in neutral or park, and about 650 or 700 RPM when in gear. Not a bad compromise for the time being.
The rubber washers from a Harbor Freight kit, 67552. Mostly used the 8x14x4mm rubber washers.
I used electrical tape to seal the 3 holes, but silicone would be way better. Wasn't totally sure if this would work well enough, but so far it seems to.
I'm sure there's many better possible manual idle solutions, but this used what I already had pretty well. Will see how long it holds up, but hopefully I won't need it indefinitely.
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