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Top Dead Center sensor
Where does this thing go and what does it "read"? The part diagram is not that clear.
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Magnus 911 Silver Targa -77, 3.2 -84 with custom ITBs and EFI. 911T Coupe -69, 3.6, G50, "RSR", track day. 924 -79 Rat Rod EFI/Turbo 375whp@1.85bar. 931 -79 under total restoration. |
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Join Date: Dec 2003
Location: MS.
Posts: 2,322
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As far as I know on a 3.2, the TDC sensor is only used for diagnostic testing, not an engine running requirement, other engines may vary.
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84' Steelslantnose Cab. 1953 Dodge B-4-B-108" 90,127 miles 1953 Dodge B-4-C-116" 58,146 miles 1954 Dodge C-1-B8-108" 241V8 POLY 1973 Roadrunner 440-SIX-PACK* 1986 F-250 Super Cab-460 V8 tow Newest additions- Matching numbers 1973 340 Road Runner!! 1948 Dodge B-1-F-152" 1-1/2 ton Dump body, 39,690 miles others... |
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Racer
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+1. That is a bracket for the TDC sensor that is only used for diagnostic purposes. The sensor fits in the bracket and then a wire leads to the back of the engine where the plug for the sensor is capped off with a little yellow cap. It is bolted up near the idle stabilizer valve.
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Preston Brown Street: 2009 911 Carrera S Coupe | 2015 Cayenne S | 1995 Audi ÜrS6 (unicorn) 1965 356 C Coupe | 2010 F250 (support vehicle) Race: 1994 964 GT2/1 | Various 944s | 2016 Superlite SLC | 2007 997 Carrera |
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OK, good to know. Thanks!
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Magnus 911 Silver Targa -77, 3.2 -84 with custom ITBs and EFI. 911T Coupe -69, 3.6, G50, "RSR", track day. 924 -79 Rat Rod EFI/Turbo 375whp@1.85bar. 931 -79 under total restoration. |
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Does anyone know what the 3 pins in this plug are for?
I assume gnd, signal from TDC diag sensor, but what's the 3rd? I actually have to use this TDC sensor for some timing calculations I'm making for another crazy project. Thanks.
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Sal 1984 911 Carrera Cab M491 (Factory Wide Body) 1975 911S Targa (SOLD) 1964 356SC (SOLD) 1987 Ford Mustang LX 5.0 Convertible |
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Shield.
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Magnus 911 Silver Targa -77, 3.2 -84 with custom ITBs and EFI. 911T Coupe -69, 3.6, G50, "RSR", track day. 924 -79 Rat Rod EFI/Turbo 375whp@1.85bar. 931 -79 under total restoration. |
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Safe,
So the 3 pins all are basically used for the TDC Diag Sensor only? Meaning the wire harness ONLY goes between the Diag sensor and the connector with the 3 pins? So the sensor has 2 outputs ('+' & '-') and a shield? Sorry for the dumb questions but it's a pain to trace in the engine bay. Thanks.
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Sal 1984 911 Carrera Cab M491 (Factory Wide Body) 1975 911S Targa (SOLD) 1964 356SC (SOLD) 1987 Ford Mustang LX 5.0 Convertible |
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Sal
Yes and Yes.
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Magnus 911 Silver Targa -77, 3.2 -84 with custom ITBs and EFI. 911T Coupe -69, 3.6, G50, "RSR", track day. 924 -79 Rat Rod EFI/Turbo 375whp@1.85bar. 931 -79 under total restoration. |
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