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arsprod |
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#1
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Member ![]() ![]() Group: Members Posts: 210 Joined: 14-March 15 From: Indianapolis Member No.: 18,519 Region Association: Upper MidWest ![]() |
The temp gauge above my fuel gauge isn't working. For the life of me I cannot find any mention of it in the Haynes manual I have or even in the owners manual. Where's the sending unit for this thing? 74 2.0
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stugray |
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#2
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 3,825 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None ![]() |
+ to +12VDC (dash power)
GND to chassis ground The third wire would lead to the temp sensor. To test the gauge, with ignition on disconnect the wire from the temp sensor and ground it to the engine bar. The gauge should read the Highest temp it is capable of. This case represents the Hot case where the temp sensor resistance drops and approaches zero Ohms (short) at the sensor's highest rated temp. The VDO unit that can be purchased through PP has the following cal curve. From VDO: 125F (51C) = 340 ohms 160F (71C) = 135 ohms 300F (146C) = 20 ohms This unit reads 1211 Ohms at ~20degC (68F) |
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