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P1709 Engine Trouble Code

Meaning of P1709 engine trouble code is a kind of powertrain trouble code and P1709 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 $2,140 and you can't do it yourself unless you're an experienced mechanic.

P1709 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 P1709 code is occuring now you should check P1709 repair processes.
Now don't ask yourself; What should you do with P1709 code ?
The solution is here :

P1709 Possible Solution:

P1709 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.

P1709 Code Meaning :

P 1 7 0 9
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Fuel And Air Metering Fuel Rail Pressure 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.

P1709 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P1709 engine trouble code is about Reverse Input Circuit.

Main reason For P1709 Code

The reason of P1709 OBD-II Engine Trouble Code is Fuel Rail Pressure Sensor Circuit Malfunction.

P1709 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.