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C3509 Engine Trouble Code

Meaning of C3509 engine trouble code is a kind of chassis trouble code and C3509 if your catalytic convertor fails completely, you eventually won't be able to keep the car running. Your gas mileage will also be terrible, so you should try and fix it as soon as you can. Unfortunately, the average replacement cost is around $2,000 and you can't do it yourself unless you're an experienced mechanic.

C3509 Fault Symptoms :

  1. Check engine light comes on
  2. Engine stalling or misfiring
  3. Engine performance issues
  4. Car not starting
If one of these reasons for C3509 code is occuring now you should check C3509 repair processes.
Now don't ask yourself; What should you do with C3509 code ?
The solution is here :

C3509 Possible Solution:

C3509 Engine

Gasoline engines use spark plugs to cause an explosion of fuel within the cylinder. In a properly timed engine, this explosion occurs at the proper moment to send the piston to the bottom of the cylinder and provide power to the drive shaft. If the plug wires are out of sequence, the explosion occurs at the wrong time. The improper timing of the explosion sometimes pushes the cylinder the wrong direction or interferes with the turning of the crank. As a result, the engine stutters or backfires, if it runs at all.

C3509 Code Meaning :

C 3 5 0 9
OBD-II Diagnostic Chassis (C) Trouble Code For Engine Ignition System Or Misfire Fuel Composition Sensor Circuit Malfunction Cold Start Injector 1 Malfunction Reverse Input Circuit

The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate.

C3509 OBD-II Diagnostic Chassis (C) Trouble Code Description

C3509 engine trouble code is about Reverse Input Circuit.

Main reason For C3509 Code

The reason of C3509 OBD-II Engine Trouble Code is Fuel Composition Sensor Circuit Malfunction.

C3509 DTC reports a sensor fault, replacement of the sensor is unlikely to resolve the underlying problem. The fault is most likely to be caused by the systems that the sensor is monitoring, but might even be caused by the wiring to the sensor itself.