AIRFLOW METER
Note. Airflow meter may be referred to as Mass Airflow (MAF) meter.
Airflow meter resistance specification is not available from manufacturer at time of publication.
CAMSHAFT POSITION SENSOR
For camshaft position sensor testing, see BASIC TESTING - 2.7L article.
| Application | Ohms |
|---|---|
| Cold (1) | 835-1400 |
| Hot (2) | 1060-1645 |
| (1) Cold is with temperature of 14-122°F (-10-50°C). (2) Hot is with temperature of 122-212°F (50-100°C). | |
| (1) | Cold is with temperature of 14-122°F (-10-50°C). |
| (2) | Hot is with temperature of 122-212°F (50-100°C). |
CAMSHAFT POSITION SENSOR RESISTANCE
CRANKSHAFT POSITION SENSOR
For crankshaft position sensor testing, see BASIC TESTING - 2.7L article.
| Application | Ohms |
|---|---|
| Cold (1) | 1630-2740 |
| Hot (2) | 2065-3225 |
| (1) Cold is with temperature of 14-122°F (-10-50°C). (2) Hot is with temperature of 122-212°F (50-100°C). | |
| (1) | Cold is with temperature of 14-122°F (-10-50°C). |
| (2) | Hot is with temperature of 122-212°F (50-100°C). |
CRANKSHAFT POSITION SENSOR RESISTANCE
EGR GAS TEMPERATURE SENSOR
For EGR gas temperature sensor testing, see SYSTEM/COMPONENT TESTS - 2.7L article.
| Temperature °F (°C) | Ohms |
|---|---|
| 122 (50) | 64,000-97,000 |
| 212 (100) | 11,000-16,000 |
| 302 (150) | 2000-4000 |
EGR GAS TEMPERATURE SENSOR SPECIFICATIONS
ENGINE COOLANT TEMPERATURE (ECT) SENSOR
For engine coolant temperature sensor location, see SYSTEM/COMPONENT TESTS - 2.7L article. Using ohmmeter, check resistance between electrical terminals on engine coolant temperature sensor. Ensure resistance is within specification in relation to specified temperature. (Scheme 2)
Scheme 2
HEATED OXYGEN SENSOR
For heated oxygen sensor application and sensor testing, see SYSTEM/COMPONENT TESTS - 2.7L article.
THROTTLE POSITION (TP) SENSOR
For terminal identification and testing procedures, see SYSTEM/COMPONENT TESTS - 2.7L article.
| Application Type | Clearance In. (mm) | Terminals Tested | Ohmmeter Reading |
|---|---|---|---|
| 2.7L (1) | Fully Closed | VTA & E2 | 200-5700 |
| " | Fully Open | VTA & E2 | 2000-10,200 |
| " | " | VC & E2 | 2500-5900 |
| (1) Apply vacuum to throttle opener before checking TP sensor. | |||
| (1) | Apply vacuum to throttle opener before checking TP sensor. |
TP SENSOR RESISTANCE SPECIFICATIONS
VAPOR PRESSURE SENSOR
For vapor pressure sensor testing, see SYSTEM/COMPONENT TESTS - 2.7L article.