Cat 3126 flash code 15, CAT Fault codes Apr 28, 2005 · I have 3126 cat engine that ran fine 3 weeks ago,won't start today. I now remembered what happened the last time. HEP44992 The truck is going into limp mode am I am getting a flash code Oct 25, 2000 · I have 2 filters, one 30 microns (racor 90) and the standard 2 micron CAT filter. No more loping. I always carry at least 2 primary and 2 secondary filters with me at all times. IAC valve is my findings in reading the forums. CAT 3126E Fault Code: 164-2 PID: Flash Code 15 SPN: 164 FMI: 2 Injection Actuation Pressure Signal Erratic The Engine Control Module (ECM) detects the following conditions: •The injection actuation pressure is greater than 3 MPa (435 psi) for more than three seconds when the engine is off. The false logging of 101-13 has been eliminated. After restarting and reading the code, looked in the book and then the lite bulb lit. Aug 16, 2018 · Solutions for Reason Codes 15 C & D and 16 that were removed in Reason Code 17 have been corrected and added back to the software. I was involved with these engines from day 1 and never remember changing an ECM. Ran the codes and got a39 flash out. Flash Code 15 – Oil Pressure Sensor: This code indicates an issue with the oil pressure sensor, which may require replacement. Changed the racor and all was fine. Feb 4, 2026 · Cat ET software (seasonally updated by Caterpillar) This is the most complete and reliable diagnostic option for a 3126/3126B for deep troubleshooting, when you need historical codes or logged events (flash codes alone might not capture everything), when diagnosing intermittent faults. Having problem 3126 cat engine going into limp mode with code164-11 Cat man, I am working on a CAT 3126 serial no. Apr 30, 2012 · If you look in the Cat manual for the 3126 it says sensor first, wiring second and least ECM. Where is located and do you think that is the problem? CAT Fault codes Apr 30, 2012 · If you look in the Cat manual for the 3126 it says sensor first, wiring second and least ECM. Home Troubleshooting #i02301805 Diagnostic Codes ` 3126B and 3126E On-highway Engines [RENR1367] 3126B and 3126E On-highway Engines Replacing the ECM 3126B and 3126E On-highway Engines 0084-00 Vehicle Overspeed Warning (41) ELECTRICAL AND STARTING SYSTEM ELECTRONICS GP-ENGINE Caterpillar 3126B List of Codes included: 12 Coolant Level Sensor Circuit Fault 15 An Injection Actuation Pressure Sensor Circuit Fault 17 Injection Actuation Pressure Sensor Out of Range 18 . Oct 15, 2024 · CAT 3126B Fault Code: 164-2 PID: Flash Code 15 SPN: 164 FMI: 2 Injection Actuation Pressure Signal Erratic October 15, 2024 Flash Code 14 – This code indicates a failure of the engine’s oil or coolant temperature sensor. Getting a re-flash yes.
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