Cummins fault code 3136
Engine EGR Outlet Pressure Sensor Circuit: circuit voltage high / shorted high
What it means
Cummins' description: Engine Exhaust Gas Recirculation Outlet Pressure Sensor Circuit - Voltage above normal, or shorted to high source.
SPN 5019 is Engine Exhaust Gas Recirculation 1 Outlet Pressure. FMI 3 means the voltage on the circuit is higher than possible for a good sensor, usually an open signal wire, a short to a power wire, or a failed sensor.
The EGR system routes a measured amount of cooled exhaust back into the intake to lower combustion temperature and NOx. It uses a valve, a cooler, temperature sensors and a differential pressure sensor to measure flow.
What the lamp means
An amber (yellow) warning lamp means the engine can usually keep running, but the fault should be repaired soon, ideally the same day.
Green, yellow, red: three ways this can look
The same code can be a quick fix or a reason to shut down. Match your situation to the closest example.
Keep an eye on it
One EGR code that clears, with no power loss, smoke or coolant loss.
Schedule a repair
Amber lamp, rough running, more soot, or slow regens. EGR problems load the DPF and get worse with time, so schedule it.
Stop and get help
Coolant disappearing with white smoke, or a stop lamp. Shut it down. A leaking EGR cooler can push coolant into the engine and cause hydrolock or head gasket damage.
Common causes
FMI 3 is an electrical or signal fault, so start with the circuit:
- EGR valve position sensor or actuator wiring fault
- Failed EGR temperature or differential pressure sensor
- Cracked sensor hose on the differential pressure sensor
If the circuit checks out, the reading may be real. Other possibilities: eGR valve sticking from soot buildup; clogged EGR cooler restricting flow; leaking EGR cooler (watch for coolant loss or white smoke).
What you can check before calling
- Check coolant level. Unexplained loss can point to an EGR cooler leak
- Look for white smoke or a sweet coolant smell from the exhaust
- Look for soot tracks or loose hoses around the EGR valve and pressure sensor
Clearing the code without fixing the cause usually brings it right back, and on emissions systems it can restart derate timers.
Engines and sources
Listed by Cummins for: QSX 15. Cummins uses the same fault code numbers across its electronic engines, including on-highway models like the ISB/B6.7, ISL/L9 and ISX/X15, though not every code applies to every engine or software level. Source: Cummins Tier 4 Fault Codes. Always confirm with Cummins service information (QuickServe) for your engine serial number.
Same SPN, other failure types
Related EGR codes
- 2962 SPN 412 FMI 16
EGR Temperature: reading above normal (moderately severe) - 2961 SPN 412 FMI 15
EGR Temperature: reading above normal (least severe) - 2376 SPN 412 FMI 4
EGR Temperature Sensor Circuit: circuit voltage low / shorted low - 2375 SPN 412 FMI 3
EGR Temperature Sensor Circuit: circuit voltage high / shorted high - 2357 SPN 2791 FMI 7
EGR Valve Control Circuit: not responding / out of adjustment - 2353 SPN 2791 FMI 6
EGR Valve Control Circuit: circuit grounded / current high
Look up another code
Cummins fault code (like 1922), J1939 SPN and FMI (like SPN 3251 FMI 0), or an OBD-II code (like P0420).
Questions
What does Cummins fault code 3136 mean?
Cummins fault code 3136 is J1939 SPN 5019 FMI 3: Engine Exhaust Gas Recirculation Outlet Pressure Sensor Circuit - Voltage above normal, or shorted to high source. In plain terms: engine egr outlet pressure sensor circuit: circuit voltage high / shorted high.
Can I keep driving with Cummins code 3136?
Usually for a short time, if the engine runs normally and no other warnings are on. Get it diagnosed soon, because many amber codes lead to a derate if ignored. Look at the green, yellow and red examples on this page to judge your situation.
What is the SPN and FMI for Cummins code 3136?
SPN 5019 identifies the part or system (Engine Exhaust Gas Recirculation 1 Outlet Pressure). FMI 3 describes the type of failure: circuit voltage high / shorted high.
What usually causes Cummins code 3136?
The most common causes are: eGR valve position sensor or actuator wiring fault; failed EGR temperature or differential pressure sensor; cracked sensor hose on the differential pressure sensor.
Diesel down in the Midlands?
We work on Cummins-powered pickups, vans and medium-duty trucks across Lexington, Columbia and the Midlands, on site at your yard or roadside.