Author | Topic |

Location: 1st street on the right
Registered: November 2002
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Re: Circuit opening relay - question just to verify
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Tue, 04 November 2003 18:49

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I don't know if it's the same but my crown (5mge) the fuel pump circuit opening relay is switched by two circuits. It is switched with ignition and also switched by the air flow meter (don't know if you have) when the flap is moved. This is a constant voltage, just on/off. It's done as a safety thing if the car stalls (accident) the pump also stops. One of the wires from the AFM will complete a circuit to earth (AFM body, make sure it's not a bad earth ).
The FC should be ign controlled and have full power at all times through startup to switch the 1st stage of the relay. As you crank the engine the AFM opens and switched the second stage and pump runs. I fed this to another std relay at the pumps. (cuct open is not the pump relay as such)
Justin
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| Subject | Poster | Date |
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Circuit opening relay - question just to verify
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THE WITZL | Tue, 04 November 2003 12:35 |
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Re: Circuit opening relay - question just to verify
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Cressida Supra | Tue, 04 November 2003 14:20 |
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Re: Circuit opening relay - question just to verify
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Cressida Supra | Tue, 04 November 2003 15:04 |
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Re: Circuit opening relay - question just to verify
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clubagreenie | Tue, 04 November 2003 18:49 |
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Re: Circuit opening relay - question just to verify
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ddeane | Tue, 04 November 2003 21:46 |
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Re: Circuit opening relay - question just to verify
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Grant | Tue, 04 November 2003 22:11 |
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Re: Circuit opening relay - question just to verify
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THE WITZL | Wed, 05 November 2003 10:51 |
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Re: Circuit opening relay - question just to verify
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clubagreenie | Wed, 05 November 2003 11:33 |
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Re: Circuit opening relay - question just to verify
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THE WITZL | Wed, 05 November 2003 12:45 |
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Re: Circuit opening relay - question just to verify
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BansheeBuzz | Wed, 05 November 2003 20:39 |
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Re: Circuit opening relay - question just to verify
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THE WITZL | Thu, 06 November 2003 10:40 |