Hello, everyone.
I've 2002 Ody with 251000 miles.
Problem - hunting idle and, now, high idle.
I checked all vacuum hoses, except two that go from junction of upper radiator hose to engine. These tow lead towards front of engine and run under the intake manifold.
I checked power steering switch wires and fixed them.
I plugged/unplugged MAP with running engine - it seems ok. Power to this sensor is ok.
Then, I suspected an Idle Air control valve. I cleaned it 2 years ago (because of error code).
There is no information in repair manuals (available for mere mortals) about how to test this valve and it's normal operation and its specs.
My tests are:
712Ohm between center pin and right one (looking at valve from connector side locking tab up).
The rotating "throttle" inside (within outermost cavity, which is the closest to intake manifold) doesn't close completely after I turn on and off ignition switch. This cavity is half open (or closed).
I don't know if this is a normal gap.
I don't know if the Ohm reading is correct, either.
If this valve within the specs and operats as it should, I don't want to buy a replacement.
I couldn't find any other sources of air/vacuum leak when I sprayed carb cleaner on all possible gaskets/hoses/connections.
The intake manifold was never removed by me.
Prior to this (hunting idle and high idle) the car ran fine and was parked for a few months.
let me know what your experience is with this type of situation and possible ways to fix it.
Thanks in advance.
I've 2002 Ody with 251000 miles.
Problem - hunting idle and, now, high idle.
I checked all vacuum hoses, except two that go from junction of upper radiator hose to engine. These tow lead towards front of engine and run under the intake manifold.
I checked power steering switch wires and fixed them.
I plugged/unplugged MAP with running engine - it seems ok. Power to this sensor is ok.
Then, I suspected an Idle Air control valve. I cleaned it 2 years ago (because of error code).
There is no information in repair manuals (available for mere mortals) about how to test this valve and it's normal operation and its specs.
My tests are:
712Ohm between center pin and right one (looking at valve from connector side locking tab up).
The rotating "throttle" inside (within outermost cavity, which is the closest to intake manifold) doesn't close completely after I turn on and off ignition switch. This cavity is half open (or closed).
I don't know if this is a normal gap.
I don't know if the Ohm reading is correct, either.
If this valve within the specs and operats as it should, I don't want to buy a replacement.
I couldn't find any other sources of air/vacuum leak when I sprayed carb cleaner on all possible gaskets/hoses/connections.
The intake manifold was never removed by me.
Prior to this (hunting idle and high idle) the car ran fine and was parked for a few months.
let me know what your experience is with this type of situation and possible ways to fix it.
Thanks in advance.
