Acv switching valve
07-14-13, 05:16 PM
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Acv switching valve
Anyone have any tips to lock the valve open? The diaphragm is cracked and leaks air. I've been trying to get the car smogged and already failed 3 times. I wonder why mazda didn't have the valve fail open instead since port air is essential for emissions.
07-14-13, 06:36 PM
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you can shim it, old old trick. i think Mazda has it default to dumping, to keep the heat down
07-23-13, 10:50 AM
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