 Need Good 7 Pin AFM, AFM Test and Calibration |
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| rbzymek |
 Apr 21 2019, 05:58 AM
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#1
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Member  Group: Members Posts: 195 Joined: 5-April 19 From: Northville, MI Member No.: 23,013 Region Association: Upper MidWest 
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I am looking for a 7 pin AFM for a 1975 1.8L. I am converting back to FI. Since the AFM is the most important sensor, how do I make sure I am getting a functional reasonably calibrated part? Thanks in advance.
Ray |
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Replies(1 - 3)
| ClayPerrine |
Apr 21 2019, 07:53 AM
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#2
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Life's been good to me so far..... Group: Admin Posts: 15,502 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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QUOTE(rbzymek @ Apr 21 2019, 06:58 AM)  I am looking for a 7 pin AFM for a 1975 1.8L. I am converting back to FI. Since the AFM is the most important sensor, how do I make sure I am getting a functional reasonably calibrated part? Thanks in advance. Ray It either works or it doesn't. You can ohm test like they show in the factory manual. But if the wiper contacts are worn, all you can do is replace it. I have many spare AFMs. PM me to discuss it. Clay |
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| rbzymek |
Apr 24 2019, 09:53 AM
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#3
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Member Group: Members Posts: 195 Joined: 5-April 19 From: Northville, MI Member No.: 23,013 Region Association: Upper MidWest
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QUOTE(ClayPerrine @ Apr 21 2019, 07:53 AM) QUOTE(rbzymek @ Apr 21 2019, 06:58 AM) I am looking for a 7 pin AFM for a 1975 1.8L. I am converting back to FI. Since the AFM is the most important sensor, how do I make sure I am getting a functional reasonably calibrated part? Thanks in advance. Ray It either works or it doesn't. You can ohm test like they show in the factory manual. But if the wiper contacts are worn, all you can do is replace it. I have many spare AFMs. PM me to discuss it. Clay Hi Clay, Thanks for your offer to help. I now have two AFM's, a 6-pin and a 7-pin. The sales person at AutoAtlanta advised that the there is only one 7-pin part number and that it will work on the (1975) 1.8L. (He also said that the covers (and part numbers) are often mixed up in the shuffle so they cannot always be relied to determine what you have.) I applied a battery to the 7-pin wiper circuit and observed a smooth continuous voltage ramp as the vane was rotated. The 6-pin AFM that I have seems larger and it has a different mounting footprint to the air box. I am having difficulty in locating an air cleaner for the 7-pin AFM. All of the 1.8 documentation that I found seems to point to the air cleaner that would fit the 6-pin unit. Any thoughts? Regards, Ray |
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| jim_hoyland |
Apr 24 2019, 02:25 PM
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#4
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Get that VIN ? Group: Members Posts: 9,314 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California
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QUOTE(rbzymek @ Apr 24 2019, 08:53 AM) QUOTE(ClayPerrine @ Apr 21 2019, 07:53 AM) QUOTE(rbzymek @ Apr 21 2019, 06:58 AM) I am looking for a 7 pin AFM for a 1975 1.8L. I am converting back to FI. Since the AFM is the most important sensor, how do I make sure I am getting a functional reasonably calibrated part? Thanks in advance. Ray It either works or it doesn't. You can ohm test like they show in the factory manual. But if the wiper contacts are worn, all you can do is replace it. I have many spare AFMs. PM me to discuss it. Clay Hi Clay, Thanks for your offer to help. I now have two AFM's, a 6-pin and a 7-pin. The sales person at AutoAtlanta advised that the there is only one 7-pin part number and that it will work on the (1975) 1.8L. (He also said that the covers (and part numbers) are often mixed up in the shuffle so they cannot always be relied to determine what you have.) I applied a battery to the 7-pin wiper circuit and observed a smooth continuous voltage ramp as the vane was rotated. The 6-pin AFM that I have seems larger and it has a different mounting footprint to the air box. I am having difficulty in locating an air cleaner for the 7-pin AFM. All of the 1.8 documentation that I found seems to point to the air cleaner that would fit the 6-pin unit. Any thoughts? Regards, Ray I have a bottom; free for price of shipping |
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