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HomeAUTOMOTIVEError code P1326: reasons, problems and diagnosis »

Error code P1326: reasons, problems and diagnosis »

the error code P1326 It occurs due to vibrations that indicate excessive wear of the connecting rod bearing. You can easily spot them using the KSDS (Knock sensor detection system). Since serious engine damage and failure is possible, this device notifies the driver of an earlier stage of bearing wear. When operating wear causes continual vibrations, the ONE THOUSAND (malfunction indicator lamp) will flash continuously. This quickly alerts the driver to the problem. In addition, a DTC code is set that specifies the cause of the problem.

What causes error code P1326?

The knock sensor detection system problem may occur due to one of the following reasons

  • The knock sensor wires or connectors may be broken.
  • a faulty sensor
  • A bad engine
  • It may be necessary to reprogram the ECM (Engine Control Module).

Malfunction of the fuel rail pressure sensor circuit is the cause of the engine trouble code P1326 OBD-II.

shift solenoid 3-4 is responsible for activating the hydraulic circuits to activate clutches or bands that change gears within the automatic transmission in your car, as indicated by the code P1326 in vehicles with electronically controlled automatic transmissions.

Main symptoms of sensor circuit malfunction

an error code P1326 it can happen due to many reasons that we can overlook.

  • Check engine light is on most of the time
  • Impotence can also cause error code P1326
  • Poor idle or intermittent performance
  • MIL (malfunction indicator lamp) is always on
  • Difficulty starting the car.
  • engine starting problem
  • Both idle and stall
  • Other driving difficulties

How to easily diagnose sensor circuit malfunction?

You should seek the help of a technician to diagnose a sensor circuit malfunction. Only an experienced person can identify its symptoms.

  • Make sure it’s a P1326 error code.
  • First erase the engine control module.
  • Make sure there are no other active DTCs.
  • Inspect the knock sensor, wiring harness, and ECM for loose connections.
  • Turn the ignition key to the ON position without starting the engine. Check if it rotates correctly. Then release it to the OFF position once done.
  • If you notice an open or short circuit during this test, replace the knock sensor. If the PCM reports the P1326 error code, check each spark plug wire and coil pack for a spark. Also, check the fuel pressure and injector pulse waveform while cranking the engine.

What is the cost to diagnose a sensor circuit failure?

The cost of repairing a code P1326 can range between €225 and €1500 or more. It depends on the type and number of parts that need replacement, as well as the labor time. Due to the fact that this code is generally a manufacturer specific code. Some vehicles may not be able to use alternative replacement components while having identical symptoms. This depends on the type and number of parts that need replacement. It also largely depends on the time it takes to diagnose and fix the problem.

Replacement knock sensors range in price from €100 to €300, depending on where you buy them. Installing a new knock sensor can cost between €45 and €200. This depends on your region and service provider.

How to solve error code P1326 easily?

It takes very little time for an expert to resolve a sensor circuit malfunction. There are some simple techniques that are used to solve the problem.

  • Consult the Technical Service Bulletins.
  • Look up more DTCs for the P1326 error code using a car scanner. If that is the case, the diagnostic codes should match what the scanner says.
  • Examine the wires and connectors that connect to the knock sensor for common problems. If necessary, repair or replace.
  • Measure the knock sensor voltages with the necessary instruments. This is to ensure that the knock sensor circuit is not open or grounded. Make the appropriate adjustments if you encounter one of these circumstances.
  • Check the condition of the knock sensors. Do this according to the manufacturer’s recommendations. Replace it if you find it to be faulty.
  • Measure the knock sensor voltages with the necessary instruments. Do this to make sure the knock sensor circuit is not open or shorted. Make the appropriate adjustments when one of these circumstances is confirmed.
  • Examine the engine for mechanical problems. Repair all stored codes, particularly those that indicate the P1326 error code.

Common Mistakes When Diagnosing Sensor Circuit Faults

  • Make inferences about the project by focusing on data from various trouble codes.
  • Assuming the scanning methods are always 100 percent accurate.
  • Incorrectly determining the origin of a symptom.
  • Before diagnosing the P1326 error code, do check for other DTCs that are causing it.
  • Do not replace items that have failed due to wear or contamination.
  • Failure to Follow Proper Repair Procedures – When working on automotive components, use only recommended fluids, cleaners, and lubricants.

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