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Volvo RWD 200 Forum

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READ ONLY    PRINT   SAVE  Before I order - LAST hall sender question 200 1983 posted by  jimo14 on  Sat May 9 19:45 CST 2009 Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS]     [IGNORE ALL POSTS] last visit: Fri Nov 20 10:17 CST 2009 [RELATED] I have determined (fingers crossed) at long last that my intermittant run problem stems from a faulty hall sender (impulse sensor). My '83 falls into that funky and short-lived period when several distributor components were used. It has the Bosch unit with the round plug at the end of 5" of pigtail. I want to convert to the hall sender with the rectangular plug used on the '84 because the original round plug unit runs around $290.00 (AC/Delco E1944C), while I can get the '84 rectangular plug hall sender for about $110.00 (Volvo PN 1237031166). Even though both of these run with the same ICU (1317295), a mechanic very convincingly told me today that if I splice on the rectangular plug and use the '84 sender, I will risk frying the ICU because the "resistance values" from one to the other will be different. I don't get it. Who's out to lunch on this one, me or him? Mark this post as an answer to my question<- Use this feature to mark quality replies to your post. Select, copy to buffer, and paste anywhere: <a href="http://www.brickboard.com/RWD/volvo/1348162/220/240/260/280/order_last_hall_sender_question.html">Before I order - LAST hall sender question</a>

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  READ ONLY    PRINT   SAVE  Before I order - LAST hall sender question 200 1983 posted by  lucid on  Sun May 10 08:59 CST 2009 Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS]     [IGNORE ALL POSTS] last visit: Sat Nov 21 07:40 CST 2009 [RELATED] "I want to convert to the hall sender with the rectangular plug used on the '84 because the original round plug unit runs around $290.00 (AC/Delco E1944C), while I can get the '84 rectangular plug hall sender for about $110.00 (Volvo PN 1237031166)... ... Even though, both of these run with the same ICU (1317295)..." • I don't know how this impacts your plans, but that "Volvo PN 127031166" is actually Bosch PN 1-237-031-166, which equates to Volvo PN 1346803 — and that 1346803 is the impulse sender for the '85-'87 ICU 1346107 (not your '83-'84 1317295). But if it fits your '83-'84 distributor body, I think it should work with the earlier ICU. Your 1317295 ICU is listed in my SAVE ("trade" parts book) for the '83-'84 with Automatic Tranny. The matching Impulse Sender is the Bosch 1-237-031-123 (or) Volvo 1276619, which is $93.68 at Tasca Volvo (but maybe that's a round plug???). The '85-'87 1346803 is #105.56 at Tasca. I think your mechanic is out to lunch about "resistance values". As I understand it, the pulses from the hall switch (any year) are merely interruptions of the nominal 5V control voltage signal from the ICU on the yellow (B) wire. The other 2 wires are 12V input and a ground. -- Bruce Young, '93 940-NA (current), 240s (one V8), 140s, 122s, since '63. Mark this post as an answer to my question<- Use this feature to mark quality replies to your post. Select, copy to buffer, and paste anywhere: <a href="http://www.brickboard.com/RWD/volvo/1348202/220/240/260/280/order_last_hall_sender_question.html">Before I order - LAST hall sender question</a>

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    READ ONLY    PRINT   SAVE  Before I order - LAST hall sender question 200 1983 posted by  jimo14 on  Sun May 10 10:46 CST 2009 Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS]     [IGNORE ALL POSTS] last visit: Fri Nov 20 10:17 CST 2009 [RELATED] Hi bruce, I googled that PN (Bosch 1-237-031-123) and found a part that looks nothing like mine. I believe that that might be for a B21 engine. This can get confusing! Too many part #s ............. Jim Mark this post as an answer to my question<- Use this feature to mark quality replies to your post. Select, copy to buffer, and paste anywhere: <a href="http://www.brickboard.com/RWD/volvo/1348213/220/240/260/280/order_last_hall_sender_question.html">Before I order - LAST hall sender question</a>

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      READ ONLY    PRINT   SAVE  Before I order - LAST hall sender question 200 1983 posted by  lucid on  Sun May 10 11:30 CST 2009 Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS]     [IGNORE ALL POSTS] last visit: Sat Nov 21 07:40 CST 2009 [RELATED] Jim, I agree, after seeing the 123 picture I believe it's for the Bosch "Breakerless" ignition, not your early Volvo/Chrysler. Sorry to be less than helpful (as was my parts book). Have you tried to see if the whole '85-'87 distributor with it's 166 Hall Switch will fit your '83 block? I think that $290 sender is for the original Chrysler white cap unit. -- Bruce Young, '93 940-NA (current), 240s (one V8), 140s, 122s, since '63. Mark this post as an answer to my question<- Use this feature to mark quality replies to your post. Select, copy to buffer, and paste anywhere: <a href="http://www.brickboard.com/RWD/volvo/1348218/220/240/260/280/order_last_hall_sender_question.html">Before I order - LAST hall sender question</a>

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  READ ONLY    PRINT   SAVE  Before I order - LAST hall sender question 200 1983 posted by  ODGuru on  Sun May 10 06:44 CST 2009 Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS]     [IGNORE ALL POSTS] last visit: Thu Nov 12 18:10 CST 2009 [RELATED] A connection of zero resistance has the same reading as any other connection resistance of zero! The Hall Sensor test is to jumper two wires from the ICU together, at which point the resistance between the two wires is zero. The ICU has effectively seen a "dead short of zero resistance" between those two wires. I'm not 100% sure but it appears the Hall sensor acts similar to a magneto in reverse. Instead of using a magnet passing through a coil of wire to generate a voltage, the metal vane passing through a magnetic field creates a voltage change between two wires that the ICU uses to fire the spark. IMOP, since the spark can be fired with a change from infinite to zero resistance without damage, a voltage change from 12 volts to any other voltage will do no damage. My biggest concern at this point would be the mechanincs ability to get the correct wires from one connector to match the wires of the new sensor arrangement with a connection method that prevents future deterioration of the connection in the under hood environment that close to the block. Duane. Mark this post as an answer to my question<- Use this feature to mark quality replies to your post. Select, copy to buffer, and paste anywhere: <a href="http://www.brickboard.com/RWD/volvo/1348197/220/240/260/280/order_last_hall_sender_question.html">Before I order - LAST hall sender question</a>

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    READ ONLY    PRINT   SAVE  Before I order - LAST hall sender question 200 1983 posted by  jimo14 on  Sun May 10 10:58 CST 2009 Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS]     [IGNORE ALL POSTS] last visit: Fri Nov 20 10:17 CST 2009 [RELATED] Thanks Duane - I had a feeling that this guy's explanation did not add up. No first-hand knowledge on my part. The same ICU - the only difference seemed to be the shape of the connector - it made no sense to me. Jim Mark this post as an answer to my question<- Use this feature to mark quality replies to your post. Select, copy to buffer, and paste anywhere: <a href="http://www.brickboard.com/RWD/volvo/1348214/220/240/260/280/order_last_hall_sender_question.html">Before I order - LAST hall sender question</a>

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  READ ONLY    PRINT   SAVE  Before I order - LAST hall sender question 200 1983 posted by  goatman on  Sat May 9 22:24 CST 2009 Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS]     [IGNORE ALL POSTS] last visit: Thu Oct 1 06:25 CST 2009 [RELATED] Hi, That makes some sense, the part about the frying of the ECU. The reason the mechanic said "that" was because of a fear factor, he was afraid of the problem. Since Volvo improved the hall pickup unit in 1984, that automatically means that: The mechanic wants to go out with your old lady. The mechanic wants to take your car to the strip club. The mechanic wants to go to the casino with your credit card. With those reasons in mind, the resistance values are frying your CPU right now. Goatman Mark this post as an answer to my question<- Use this feature to mark quality replies to your post. Select, copy to buffer, and paste anywhere: <a href="http://www.brickboard.com/RWD/volvo/1348172/220/240/260/280/order_last_hall_sender_question.html">Before I order - LAST hall sender question</a>

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    READ ONLY    PRINT   SAVE  Before I order - LAST hall sender question 200 1983 posted by  jimo14 on  Sun May 10 11:14 CST 2009 Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS]     [IGNORE ALL POSTS] last visit: Fri Nov 20 10:17 CST 2009 [RELATED] Hey Goatman, No dis intended on your post, or if intended, now regretted - it was late and I was frustrated and wallowing in self-pity over my nagging car problem. With the light of day and a cup of coffee and synapses firing somewhat better, I'm chuckling here. Jim Mark this post as an answer to my question<- Use this feature to mark quality replies to your post. Select, copy to buffer, and paste anywhere: <a href="http://www.brickboard.com/RWD/volvo/1348215/220/240/260/280/order_last_hall_sender_question.html">Before I order - LAST hall sender question</a>

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    READ ONLY    PRINT   SAVE  Before I order - LAST hall sender question 200 1983 posted by  jimo14 on  Sun May 10 00:24 CST 2009 Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS]     [IGNORE ALL POSTS] last visit: Fri Nov 20 10:17 CST 2009 [RELATED] Does your response mean - ask a stupid question, get a stupid answer? I really just want to get my car running, thanks anyway. Jim Mark this post as an answer to my question<- Use this feature to mark quality replies to your post. Select, copy to buffer, and paste anywhere: <a href="http://www.brickboard.com/RWD/volvo/1348187/220/240/260/280/order_last_hall_sender_question.html">Before I order - LAST hall sender question</a>

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