Engine Controls - Sensor Operating Range Charts: Introduction
Sensor operating range information can help determine if a sensor is out of calibration. An out-of-calibration sensor may not set a trouble code, but it may cause driveability problems.
NOTE:
Unless stated otherwise in test procedure, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance.
AIRFLOW MTR TERM RESISTANCE
| Terminals |
Fully Closed: Ohms |
Fully Open: Ohms |
| E2 & Vs |
200-600 |
20-1000 |
| E2 & Vc |
200-400 |
200-400 |
| E2 & THAa |
| -4°F (-20°C) |
13,600-18,400 |
13,600-18,400 |
| 68°F (20°C) |
2210-2690 |
2100-2690 |
| 140°F (60°C) |
493-667 |
493-667 |
| E1 & Fc |
Infinite |
0 |
AIRFLOW MTR TERM RESISTANCE
| Terminals |
Temperature |
Ohms |
| E2 & Vs |
| Closed |
68°F (20°C) |
20-600 |
| Open |
68°F (20°C) |
20-1000 |
| E2 & Vc |
68°F (20°C) |
200-400 |
| E2 & THA |
-4°F (-20°C) |
10,000-20,000 |
| 68°F (20°C) |
2000-3000 |
| 140°F (60°C) |
400-700 |
ECT SENSOR RESISTANCE
| Temperature |
Ohms |
| -4°F (-20°C) |
14,600-17,800 |
| 68°F (20°C) |
2200-2700 |
| 104°F (40°C) |
1000-1300 |
| 140°F (60°C) |
500-650 |
| 176°F (80°C) |
290-350 |
EGR POSITION SENSOR RESISTANCE
| Terminals |
Ohms |
| MX-3 DOHC |
| "A" & "B" |
| Zero in. Hg |
2300 |
| 6 in. Hg |
5800 |
| "A" & "C" |
| Zero in. Hg |
5300 |
| 6 in. Hg |
1200 |
| "B" & "C" |
5000 |
| MX-6 2.5L & 626 2.5L |
| "A" & "B" |
5000 |
| "A" & "C" |
700-5000 |
| "B" & "C" |
700-5000 |
OXYGEN SENSOR
| Operating Condition |
Voltage |
| Rapidly Accelerating |
0.5-1.0 |
| Deceleration |
0.0-0.4 |
TP SENS CONTINUITY (MX-3 - 1.6L A/T & 1.8L, PROTEGE A/T, 323 A/T)
| Test Condition |
Continuity |
| MX-3 1.8L |
| .006" (.15 mm) |
Yes |
| .020" (.50 mm) |
No |
| All Others |
| .004" (.10 mm) |
Yes |
| .024" (.60 mm) |
No |
TP SENSOR CONTINUITY
| Test Condition |
Continuity Between IDL & TL/E |
Continuity Between POW & TL/E |
| .004" (.10 mm) |
Yes |
No |
| .039" (1.0 mm) |
No |
No |
| WOT |
No |
Yes |