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Old 08-23-2006, 11:25 AM   #1
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Default dancing temp gauge

i've been developing a dancing temp gauge on my '92. generally happens when the car is accellerating. my Link isn't registering the fluctuations, so i think it's a loose wire. any ideas?
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Old 08-23-2006, 11:42 AM   #2
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Yes- poor continuity somewhere in the lead/connection.
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Old 08-23-2006, 12:06 PM   #3
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The temp sensor for the dash gauge and ECU are different. IIRC the temp gauge for the dash sensor is behind the engine and semi-difficult to reach. I'd check the ground for the dash sensor first which I believe is on the driver's side toward the rear of the engine as a loose ground here has given people hot readings and supposedly is pretty easy to dislodge during header/turbo installs. Other possibility is just a worn out sensor for the dash gauge.

See the attached pic. Circled sensor is to the dash. Green top sensor is to the ECU.
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Old 08-23-2006, 02:04 PM   #4
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Quote:
Originally Posted by brgracer View Post
The temp sensor for the dash gauge and ECU are different. IIRC the temp gauge for the dash sensor is behind the engine and semi-difficult to reach. I'd check the ground for the dash sensor first which I believe is on the driver's side toward the rear of the engine as a loose ground here has given people hot readings and supposedly is pretty easy to dislodge during header/turbo installs. Other possibility is just a worn out sensor for the dash gauge.

See the attached pic. Circled sensor is to the dash. Green top sensor is to the ECU.
thanks, tom. that's probably it. i readjusted my timing about 2 weeks ago, about the time it started acting up.
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