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Home >> Saturn >> 2003 >> Ion 1 Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Trouble Shooting >> Symptoms >> Detonation/Spark Knock >> Sensor/System Checks
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Sensor/System Checks

Check for an Engine Coolant Temperature (ECT) sensor that has shifted in value. See TEMPERATURE VS. RESISTANCE  table.

TEMPERATURE VS. RESISTANCE

°F (°C) Ohms
302 (150) 47
284 (140) 60
266 (130) 77
248 (120) 100
230 (110) 132
212 (100) 177
194 (90) 241
176 (80) 332
158 (70) 467
140 (60) 667
122 (50) 973
113 (45) 1188
104 (40) 1459
95 (35) 1802
86 (30) 2238
77 (25) 2796
68 (20) 3520
59 (15) 4450
50 (10) 5670
41 (5) 7280
32 (0) 9420
23 (-5) 12,300
14 (-10) 16,180
5 (-15) 21,450
-4 (-20) 28,680
-22 (-30) 52,700
-40 (-40) 100,700