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BMW 3-Series (E90 E92) Forum
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help!pwm cant work.
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| 02-18-2013, 04:16 AM | #1 |
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help!pwm cant work.
hey guys
my pwm kit has some error,I carefully check each connector. when I check the flow Nozzle,its cant open! I know its Hall-effect sensors,but its dont work. any advise thanks! |
| 02-18-2013, 05:55 PM | #3 | |
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Quote:
I'm not sure I follow. The pic you posted is of the FAV (fast acting valve). The hall effects sensor is something completely different and is a part of the flow sensor. When you apply 12v and Ground to the two parallel blade terminals on the FAV connector, do you hear a click? Shiv |
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| 02-18-2013, 07:12 PM | #4 | |
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I m very glad to see your reply because means vishnu new works published Yes I hear the sound from the relay But it can not be opened. In front of it, everything is normal. |
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| 02-20-2013, 02:44 AM | #5 | |
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I carefully checked each wire. I remove the solenoid valve to try to use a 12v circuit connection He is normal, and can be turned on or off. I also measured the electromagnetic valve - relay-procede |
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| 02-20-2013, 02:36 PM | #6 |
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Bypass the resistor. Attempt a direct 12v connection. Remember these are Positive +opening valves. I thought mine was bad as well. Until I applied a direct 12v current and it actuated correctly.
It took me some time to figure if it worked. Took me back to the ecu and then I determined how this was engineered. Think about what line was tapped off the harness. I hafta say tho Shiv, the bench test your guys provided wasn't correct.
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| 02-20-2013, 02:39 PM | #7 |
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Also if I'm not mistaken that entire valve can be disassembled, iirc. I took one of them completely apart.
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| 02-21-2013, 04:58 AM | #8 | |
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I've tried to solenoid valve separation, to give him a 12v power supply and grounding line, I noticed that in fact the grounding line should be connected to procede. As long as I connect it to procede, it can not open properly, has a magnetic. If you give it a separate grounding line, it can work. I do not know what I can do. |
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| 02-21-2013, 05:03 AM | #9 | |
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| 02-21-2013, 05:11 AM | #10 | |
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But to procede the grounding line does not work. I found a piece of magnet, put it on top, the valve is open state, I want to use control tank line to control valve. |
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