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Join Date: Mar 2002
Posts: 3,563
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Testing Oxygen Sensor?
Guys,
I decided to re-install the Oxygen Sensor to the Motronic brain to improve gas mileage, however, in order for it to fit properly with the turbo setup, I've had to extend the length of the wire by splicing (soldering) some extra length in there. When I measure the resistance between the two female pins, I get a reading of approx 50 ohms. Is that normal, or have I introduced some extra resistance in there which has screwed the O2 Sensor? What does it typically measure at? Will this cause any issues with the DME mixture?
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Merv '89 911 Turbo Cab Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition 
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04-20-2006, 10:27 PM
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Registered
Join Date: Mar 2002
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Actually, the two female pins I refer to above is the heater circuit within the sensor and that gets 12v from the battery.
The male pin (1) is the signal to the DME.
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Merv '89 911 Turbo Cab Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition
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04-21-2006, 12:21 AM
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