P1566 Engine Trouble Code

Meaning of P1566 engine trouble code is a kind of powertrain trouble code and P1566 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.

P1566 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 P1566 code is occuring now you should check P1566 repair processes.
Now don't ask yourself; What should you do with P1566 code ?
The solution is here :

P1566 Possible Solution:

P1566 Engine

Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.

P1566 Code Meaning :

P 1 5 6 6
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Fuel And Air Metering Fuel Composition Sensor Circuit Malfunction Cylinder 4 Contribution/Balance Fault Ignition Coil A Primary/Secondary Circuit Malfunction

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.

P1566 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P1566 OBD-II Trouble Code Speed Control Command Switch Out of Range Low is one of the definitions for the P1566; however your vehicles manufacturer may have a different definition for the P1566 code. Please check below for you P1566 code.

Main reason For P1566 Code

The reason of P1566 OBD-II Engine Trouble Code is Fuel Composition Sensor Circuit Malfunction.

Parts or components should not be replaced with reference to only a P1566 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.