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P1346 Engine Trouble Code

P1346 Engine

When you check engine light came on code P1346 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the P1346 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

When the DTC check engine light comes P1346 code on the first you can check is the gas related maybe gas cap. Pull over, retighten it, and take a look at the cap to see if it has any cracks inside. Go on driving and to see if the check engine light turns off automaticly. On the other hand, you can buy a gas cap for about $4.5 at an auto parts store. All you need to do is take the old one take off and take on the new one. If you've already bought it to the store, you might as well just replace the cap. While not car-threatening, it's good to take care of this right away to improve gas mileage/km.

P1346 Code Meaning :

P
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine
1
Fuel And Air Metering
3
Fuel Rail Pressure Sensor Circuit Malfunction
4
Engine Shutoff Solenoid Malfunction
6
Reverse Input Circuit

The oxygen (02) sensors on your car measure the oxygen in the exhaust to determine how rich or lean the ratio of fuel and air are in the cylinders. Optimizing this mixture means better fuel economy and fewer exhaust emissions.

P1346 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P1346 OBD-II Trouble Code Fuel Level Sensor B Circuit Malfunction is one of the definitions for the P1346; however your vehicles manufacturer may have a different definition for the P1346 code. Please check below for your spec P1346 code. Fuel Rail Pressure Sensor Circuit Malfunction and Engine Shutoff Solenoid Malfunction causes most of code P1346.

Reason For P1346 Code

The reason of P1346 OBD-II Engine Trouble Code is Fuel Rail Pressure Sensor Circuit Malfunction.

P1346 DTC reports a sensor fault, replacement of the sensor is unlikely to resolve the underlying problem. The engine error 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.

How To Repair P1346 Code

Before starting let's see P1346 repairing process steps:

  • Qualified technicians will begin by using a scan tool to access P1346 code stored in the ECU.
  • Technicians will note P1346 code present and any freeze frame data associated with them.
  • After all, if you sure the engine trouble is finished, the code will be cleared.

Engine data will be observed while the engine is operating and the throttle will be depressed looking for a change in the exhaust pressure sensor readings in comparison to bank 1.

This process helps the mechanic narrow down the exact cause of the issue. If the transmission fluid fix did not cause the code to disappear from the PCM, then next step is to inspect the electrical components, and to continue working through possible repairs until the correct issue is found.

Sometimes P1346 code comes with P134600 code.

Diagnosis Of Engine Error OBD Code P1346

It's essential to diagnose this trouble code. Then are some way which a handyperson should follow for diagnosing the problem that started a P1346 trouble code to be stored

The first step is introductory and is about reacquiring all the canons that have been set. For this, the individual scanner will have to be plugged into the individual harborage of your vehicle. Make sure you indurate frame the data. Any canons that were set previous to the P1346 code will have to be sorted first, as they may have been the reason for the law to set in the first place. It's always good to rule that out.

The coming step is to run a introductory examination of all the electrical circuits, connectors, wiring etc for damages similar as becks, erosion, fraudulent legs etc. All of these will have to be repaired or replaced. After that's sorted, clear the canons and go on a test drive to see if it resets. In case it resets, you'll have to continue your opinion. Depending on your vehicle you may have a vacuum operated selector or a vacuum solenoid if it's electrically actuated. In the case of the former, a hand held vacuum pump will have to be used to testit.The purpose is to see if the internal stopcock is getting turned by the selector, motor or solenoid. In order to do this, a command can be transferred to the system with scanner or by driving the vehicle under the special conditions that will spark the system. While this is passing keep an eye on the checkup tool data for the result.

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