L-Jet Airflow Sensor Not Closing? |
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L-Jet Airflow Sensor Not Closing? |
PDXMike |
Jul 22 2017, 12:24 PM
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#1
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Slowly Learning Group: Members Posts: 111 Joined: 20-December 10 From: Portland, OR Member No.: 12,501 Region Association: Pacific Northwest |
1975 1.8 L-Jet. Looking inside the Airflow Sensor I noticed something that seemed strange. There is a metal wireform attached to the wiper arm. (See photo) It LOOKS like when the flap is closed that wireform should hit the leaf spring at the top right corner of the PCB and open the switch. That is not happening.
What does that switch/contact do? Should I care? |
ejm |
Jul 22 2017, 01:07 PM
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#2
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I can see the light at the end of the tunnel Group: Members Posts: 2,690 Joined: 3-February 03 From: Massachusetts Member No.: 224 Region Association: None |
That switch turns on the fuel pump when the flap opens. Does your pump run when you just turn the key to on, not running or cranking? Is the flap binding and not closing all the way keeping the switch from opening?
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PDXMike |
Jul 22 2017, 02:12 PM
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#3
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Slowly Learning Group: Members Posts: 111 Joined: 20-December 10 From: Portland, OR Member No.: 12,501 Region Association: Pacific Northwest |
My pump DOES run all the time. I'll dig in to see what's binding up.
Thanks! |
pete000 |
Jul 22 2017, 05:11 PM
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#4
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Senior Member Group: Members Posts: 1,885 Joined: 23-August 10 From: Bradenton Florida Member No.: 12,094 Region Association: South East States |
Some times an intake back fire can damage the flapper and might have caused this...
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