'95 Camry Four Won't Idle

If it's not misfiring and running rough like the EGR valve is stuck open then first suspect the IAC valve. If you can keep the engine running by stepping lightly on the gas pedal then it's likely the IAC.

You might want to pick up a new IAC gasket. Local parts store can order them or get one from the dealer.

Thanks. It does stay running with a light foot on the gas. Does the Haynes manual do a good job of detailing replacement? Sometimes I go there for info to remove 'part X' and it says, in total, "Remove part X." ;-(

The IAC problem is very common on Toyotas. So all you have to do is Google "camry iac cleaning"

Many leave things on there, but I would remove the throttle body and IAC to clean them. Autozone's free repair guide should show you how to remove the throttle body and IAC (they called idle speed controller). If you go this route make sure you get a new IAC gasket from the dealer. A tooth brush and Valvoline Throttle Body Cleaner from Autozone work well.

"Engine and overhaul" -> "Intake manifold" -> "Figure 2" 3S/5SFEengines.

=46rom yotarepair.com:

Now if you want to try to clean it yourself you can do this. You will need to purchase some carb cleaner from a parts store or some place like WalMart or Kmart. Then you have to have someone help you start the engine and kind of keep it running if needed. The process requires that you take the large black tube off the throttle body and unplug the Idle Air Control Motor. Caution, if you have no idea of what I just described do not proceed without having someone there to assist you. You then take the carb spray and spray a little into the small square hole you will find in the throttle body opening. Have your helper start the engine while you hold the connector for the IAC to the valve so that it makes contact. When the engine is running spray into the square hole and at the same time make and break the contact with the IAC connector so that the cleaner gets into the working parts of the IAC. You know when its clean when you hear a louder rushing noise from the throttle body when the connector is making the IAC work or open. Then all you have to do is clean the area and inside of the throttle body with a tooth brush (old one is preferred) and connect everything. Your check engine light will be on so when you shut the engine off open the fuse panel under the hood and remove the EFI fuse for about 30 sec. and it should clear. If it does not then turn the key to the on position and try it that way.

The IAC is located at the bottom of the throttle body.

Ok, I checked around, and a tech site with a cleaning procedure says you have to fabricate a partial wiring harness (or use a used one) to actuate the valve in order to clean it. Yikes. Any way around this, aside from spending $250 for a new IAC and gasket?