C1450 Diagnostic Trouble Code

C1450 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 C1450 diagnostic trouble code may include:

Rich or lean exhaust
Fuel pressure too low
Engine surge
Hesitation upon acceleration

Possible Causes :

Some aftermarket accessories and performance modifications
A faulty oxygen sensor. This will set a code in itself, however, a faulty oxygen sensor does not automatically condemn the sensor. The code just means that the sensor signal was not within specifications. An air leak or any of the above will cause an erroneous signal. There is a multitude of O2 codes relating to O2 performance which gives a clue to the problematic area.
Faulty IMRC actuator relay (if equipped)

Repair Processes :

Look at the plug wires to make sure they are not burnt or laying on the exhaust. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve.

Process Tips

Diagnostic trouble code C1450 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 C1450.

Fortunately, C1450 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C1450 Trouble Code For Specific Cars

C1450 Lancia Dilambda Speed Wheel Sensor LR Input Short Circuit To Ground
C1450 Chevrolet Bel Air Driver Mirror Horizontal / Vertical Feedback Potentiometer Circuit Open
C1450 Chevrolet Niva EGR Calibration High
C1450 Triumph 1800 Passenger's Front Seat Up Switch Circuit Short to Battery
C1450 Chevrolet Monte Carlo EGI Temperature Sensor Failure
C1450 Paykan High Line Driver Window Up / Down Power Circuit Short to Ground
C1450 Mazda Miata Turbocharger Boost Sensor B Circuit High