December 9, 200520 yr What is it and is it important? I was going through my fuses and found a missing fuse for ECM. So I put a 5amp fuse in turned the key to start and heard a loud fast ticking. Looked under the hood and these solenoid deals are making the noise. Is this normal? Should I replace them? Should I just pull the fuse back out and say screw it?:-\ Perhaps part of the prob ive been posting about.?.?
December 9, 200520 yr Is your car a turbo? If so, that would be the wastegate duty control solenoid. It activates the wastegate at max boost ~7 psi. It will click if the car is in test mode. Look below the steering wheel at the ECU (you may have to remove a plastic panel). Below it, here will be a male and female pair of black single-wire harnesses and green T-shaped single-wire harnesses. If you have an XT the connectors will be in the trunk. The green ones are for test mode. Disconnect the green ones to take it out of test mode. The black ones are for read memory. Green + black = clear memory. Keep the fuse in, put the correct size in if it is not 5A. Maybe someone put in test mode, didn't like the clicking, and pulled fuse?
December 9, 200520 yr If your car is a mid to early 80's these valves regulate the amount of air that is mixed with the fuel before it is fed to the carb venturi. Basically they are the muscles of the feed back system. The ecm being the brains. If these valves haven't working you could have been running rich.
December 10, 200520 yr I have EXACTLY the same thing going on under my hood. I tried to figure it out a few weeks ago, but got sorta burned out on it. Does this "test mode" apply to early 80's non-turbo wagons? EA-81 to be specific. If so, I want the green to go to black? huh? what? What is it and is it important? I was going through my fuses and found a missing fuse for ECM. So I put a 5amp fuse in turned the key to start and heard a loud fast ticking. Looked under the hood and these solenoid deals are making the noise. Is this normal? Should I replace them? Should I just pull the fuse back out and say screw it?:-\ Perhaps part of the prob ive been posting about.?.?
December 10, 200520 yr Author Its non turbo 82 wagon. If they are there for air fuel mix then that might explain a few things, ie. rich gas smell/smoke in exhaust, and a bit of a gas smell in oil. Ill see if I can find a replacement and let you guys know how it goes.
December 10, 200520 yr Okay, just ignore everything I said. Mine applies to EA82 turbo's, not EA81 carbs.
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