P0355 OBD Error Code: Problem & Solutions

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This trouble code is generic, which would mean that it can apply to all the vehicles which are equipped with the OBD-II or the vehicles which are made since 1996 up to the present. The specifications on the definition, the troubleshooting steps as well as repairs can always vary from one vehicle make to another.

This can happen because of a lot of reasons and the mechanic should diagnose the specific cause for this code.

The P0355 fault code can be defined as Ignition Coil “E” Primary/Secondary Circuit Malfunction.

Individual ignition coils are used by the ignition system on the vehicle for each cylinder. Each and every ignition coil is controlled by the engine control module. An ON/OFF signal is sent by the engine control module so that it can energize the ignition coil to create a spark at the spark plug when there is a requirement of spark at the cylinder.

What causes this problem with the Ignition Coil “E” Primary/Secondary Circuit Malfunction? 

• A defect or fault in ignition coil E
• One or more inoperative spark plugs
• There can be an open or shorted circuit in the ignition coil
• Bad connection to the ignition coil
• Built-up carbon in the engine’s air passageways or the throttle body
• A faulty electronic body or idle air control valve
• Defects in the ignition coil
• Issues in the spark plug
• Leakage in the intake manifold vacuum
• Carbon build up in the throttle body air passages
• The idle air control valve or electronic body might turn out to be faulty

1. Ignition Coil - OBD Code P0355 can appear because of faulty Ignition Coil. Visit us to solve your issue.
2. Powertrain Control Module - There can be some issues with the Powertrain Control Module due to which you may see P0355 code appearing over and over again. Visit us to buy best quality PCM online.
3. Engine Control Module - Are you facing some faults in your Engine Control Module? Don’t worry and get them replaced or else P0355 code can turn up.
4. Fuel Ignition System - Common cause behind this P0355 error code can be some fault in Fuel Ignition System. So, it will be a good decision to replace them now.
5. Engine Wiring Connector - Engine Control Module is perfectly fine but still but having that trouble code P0355 flashing? In such a situation your Engine Wiring Connector might be faulty. Why don’t you think of getting that replaced?
6. Spark Plug - The P0355 code can also arise due to some issues in Spark Plug. So it is advised to replace them as soon as possible.
7. Electronic Control Unit - P0355 code does not really end up spoiling your Engine Wiring Connector, but it might also accompany few Electronic Control Unit issues. We have best Electronic Control Unit related parts with us.
8. Throttle Body - Are you facing OBD Error Code P0355? Don’t worry as you can fix this issue with new Throttle Body. We care for our customers, that’s why we have Throttle Body for every make and model.

It is essential to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P0355 here:

Common Symptoms

• The malfunction indicator lamp can turn ON
• There can be lack of power in the engine, especially under heavy load
• Car engine may idle roughly
• Engine might misfire on acceleration
• There can be hard to start condition of the engine
• There can be a problem of engine hesitation
• Abnormal vibrations may be felt at idle or while driving

If you wish to correct this fault code, then you have to follow certain steps. Correcting a problem needs your careful attention. Here are some ways with the help of which you will be able to correct the OBD Code P0355:

• You should replace the spark plugs and spark plug wiring
• The faulty ignition coil should be replaced
• If you find out that there are some faults in the wiring in the coil pack, then it should be repaired or replaced as per the need
• Carefully repair the vacuum leaks such as leaks in the cracked vacuum line or intake manifold gasket
• The damaged PCM should be replaced

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Here are some steps which you should follow in order to diagnose this fault code:

If you have identified the P0355 code and any other stored codes from the PCM, using an OBD-II scanner, the mechanic will start by visually inspecting the wiring and circuits connected to ignition coil. They will then pay close attention to the crank signal, as a problem here can cause numerous other issues, including a P0355 code.

After testing any repairs up to this point, they will switch the coil and its spark plug with the coil and spark plug from a good cylinder. Then the codes should be cleared and go for a test drive. If the PCM records a code for the ignition coil in the new cylinder, the mechanic will know that the problem is either with the spark plug or the coil and will test each to see where the issue is originating from. Then the steps should be taken to resolve the code and once again it should be tested.

Common Mistakes When Diagnosing The P0355 Code

• A lot of people might replace the Spark Plugs when in reality the issue can be leakage in the vacuum
• Sometimes the cause of the malfunction can be a vacuum leak and the people might replace the ignition coil