Pinpoint Test RC: Exhaust Gas Temperature (EGT) Sensor: Introduction
WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
MANUAL REGENERATION OF THE DIESEL PARTICULATE FILTER CAUSES THE EXHAUST GAS TO GET VERY HOT QUICKLY. INITIATE A MANUAL REGENERATION ONLY WHEN THE VEHICLE IS ON THE GROUND WITH THE AREA AROUND THE TAILPIPE FREE OF PEOPLE, OBSTRUCTIONS, FOREIGN MATERIAL OR OTHER ITEMS. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN SERIOUS PERSONAL INJURY.
NOTE:
Regeneration may occur during normal operation. During regeneration, diagnostic procedures may display biased values. If a regeneration occurs during diagnostic procedures, allow the process to complete before continuing diagnostics.
This pinpoint test is intended to diagnose the following:
- EGT sensor (12B591)
- harness circuits: EGT11, EGT12, EGT13, EGT14, and SIGRTN
- powertrain control module (PCM) (12A650)
EGT SENSOR TEMPERATURE AND RESISTANCE SPECIFICATIONS
| Temperature | Temperature Sensor Value | |
|---|---|---|
| °C | °F | Resistance (ohms) |
| 850 | 1, 562 | 766.31 |
| 800 | 1, 472 | 737.68 |
| 750 | 1, 382 | 708.46 |
| 700 | 1, 292 | 678.66 |
| 650 | 1, 202 | 648.27 |
| 600 | 1, 112 | 617.30 |
| 550 | 1, 022 | 585.74 |
| 500 | 932 | 553.60 |
| 450 | 842 | 520.87 |
| 400 | 752 | 487.56 |
| 350 | 662 | 453.66 |
| 300 | 572 | 419.18 |
| 250 | 482 | 384.11 |
| 200 | 392 | 348.46 |
| 150 | 302 | 312.22 |
| 100 | 212 | 275.40 |
| 50 | 122 | 237.99 |
| 0 | 32 | 200.00 |
| -40 | -40 | 169.18 |