C1411 Diagnostic Trouble Code

C1411 is a kind of OBD-II Diagnostic C-Chassis Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a C1411 diagnostic trouble code may include:

Rich or lean exhaust
Fuel pressure too low
Engine surge
Poor acceleration

Possible Causes :

Faulty IMRC actuator relay (if equipped)
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)

Repair Processes :

Once located, visually inspect the connectors and wiring. Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors. Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector. Replace the oxygen sensor that is downstream from the catalytic converter on the side of the engine that does not contain cylinder #1. Also, if a oxygen sensor code stating "heater circuit malfunction" the sensor has most probably failed.

Process Tips

Diagnostic trouble code C1411 is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before C1411.

Fortunately, C1411 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C1411 Trouble Code For Specific Cars

C1411 Maserati 450 Transmission Fluid Pressure Sensor/Switch A Circuit High
C1411 Renault Torino HO2S Heater Control Circuit (Bank 2 Sensor 3)
C1411 Dodge Viper Ignition Tach Circuit Short To Ground
C1411 Opel Corsa C Decklid Release Circuit Short To Ground
C1411 Mercedes-benz 420 Air Bag Safing Sensor Output Circuit Failure
C1411 Buick 6 Cylinder 4 Contribution/Balance Fault
C1411 Mazda Rx-evolv A/C Clutch Circuit Fault