Error Code P0363 – Misfire Detected – Fuel Cut Off

Technical description and interpretation of error P0363

The P0363 error code is "misfire detected - fuel cut off." Often, in programs that work with an OBD-2 scanner, the name may have the English spelling “Misfire Detected - Fueling Disabled”.

A stored P0363 code indicates that the powertrain control module (PCM) has detected a misfire and has disabled the fuel injector for the affected cylinder. It can also be said that this problem is more common on cars of European origin.

The PCM monitors changes in input signals from the crankshaft position sensor (CPS) and camshaft position sensor(s) (CMPS). To determine whether a misfire is present and which cylinder is misfiring.

Initially, when a misfire is detected, the Malfunction Indicator Lamp (MIL) may flash rapidly for a period of time and stop (instead of staying on continuously). The flashing “Check engine” indicator is intended to inform the driver.

Movement combined with a cylinder misfire can damage the catalytic converter. The misfire code must be stored regardless of the MIL flashing, although it may be stored as a pending code.

In some vehicles (usually European manufacturers), when the PCM detects multiple cycles with a misfire code. Fuel supply to the affected cylinder is cut off.

This is typically achieved by disabling the fuel injector ground pulse for a specific cylinder. Shutting off the fuel supply to a particular cylinder is necessary because excess fuel can cause catalytic converter failure.

If a misfire is detected, a P0363 code will be stored, fuel supply to the affected cylinder will be cut off, and the MIL may illuminate. This problem is usually accompanied by one or more cylinder misfire codes.

Other misfire codes including P0300, P0301, P0302, P0303, P0304, etc.

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Comments 41

Here's what to do if the spark plugs were changed 3-4t. km. back (at maintenance) When the problem arose for the first time, they changed the coil in the second cylinder, but after 3 days the problem came out again - they cleaned all the injectors, replaced the fuel filter, but after 3 days the same problem again...

does the CHECK appear on the dashboard?

1) Regarding the temperature sensor, not all trim levels have it. Buy and connect) What is the error number?

2) Regarding the stalling, this is a jamb of the factory firmware, specifically for Grants with automatic transmission. Here is an excerpt from the Za Rulem magazine article “The same Jatco JF414E automatic machine works on the Grant and the mi-DO hatchback. The editorial mi-DO made me suffer: sometimes when braking or even in leisurely walking mode, the engine suddenly stalled. To restart it, it was necessary to put the machine into “parking”, and this can only be done by stopping completely! The reason for the vagaries lay in the fact that initially the engine calibrations were calculated for the version with a manual transmission, but for a car with an automatic transmission they were not the best fit: the mechanical losses of the transmission were not taken into account, which are much higher in hydromechanics. ————-We managed to push through solution to the problem at the factory level: a diagnostic unit was installed in the editorial car, which we drove with for several months. Decryption made it possible to catch errors, and mi-DO received new firmware for the engine control unit. Now this program has gone into series: with its appearance, other unpleasant symptoms of automatic Datsuns have disappeared. The engine speed no longer drops during heavy braking, and the cramps that shook the car when the air conditioning was turned on have disappeared.”

Sometimes you get into the car, the key is turned to start, and the engine barely spins up, vibrates a lot, and troits, the check light comes on. However, as the engine warms up, it starts to run smoothly. But it jerks when moving under tension, or during rapid acceleration. With such symptoms, the first thing you need to do is, of course, read the error codes. If you have an on-board computer, then this is not a problem at all, if not, diagnostics via the connector will help

Most often we will see two typical errors:

0363 - Misfire detected, fuel supply to idle cylinders is turned off

1303 - Cylinder 3, misfire detected, critical for the converter

In addition, we can get the following:

0300 and 0303 - Checking for misfires that affect toxicity. The number of misfires is greater than the threshold value

Full set of possible errors:

P0300, 0302, 0363, 1302, 0301, 1301, 0346, 1303

So, the problem should be looked for in this order:

4. Ignition module.

In 60% of cases, everything is solved by replacing the spark plugs with new ones; in rare cases, they pull wires along with them; the worst option is burnt-out valves, but this needs to be ruled out by measuring compression. In order to exclude the mass air flow sensor or the ignition module without losing money, I recommend taking them for analysis with the condition of being able to return them, or from the corefan, if he has a mark or a four. Good luck to everyone on the roads and fewer breakdowns.

The reason that error 0363 appears on the VAZ 2114 is the so-called misfire. It is the absence of an electric spark at the spark plug of one of the cylinders, as a result of which only three cylinders are involved in the operation of the engine.

Externally, tripping looks like a large loss of power, sharp jerking of the car and strong exhaust sounds. In most cases, the car will not even be able to move. This phenomenon can occur either periodically or constantly.

The reasons may be:

We will consider the first of these reasons (misfire) below.

Symptoms of malfunction

The main driver symptom of P0363 is the MIL (Malfunction Indicator Light). It is also called Check engine or simply “check light”. They can also appear as:

1. Rough or intermittent engine operation, especially when accelerating.
2. Reduced performance as well as engine power.
3. Other misfire-related codes will likely be stored.
4. The “Check engine” warning light may flash.

Related error codes P1301, P1302, P1303, P1304

Along with error P0363, you can also observe the following error codes P1301, P1302, P1303, P1304 - these codes indicate in which cylinder(s) 1, 2, 3 or 4, respectively, misfire occurred. The automatic system analyzes the speed and uniformity of rotation of the crankshaft and, if anomalies are detected, records the necessary error in the log.

Also, in some situations, the fuel supply to those cylinders in which the problem has arisen is turned off in order to protect the engine and its components from negative effects.

Diagnosis of error P0363 (P1301, P1302, P1303, P1304) and related faults at an authorized dealer:

A diagnostic device is connected to the client's car, the ignition is turned on and the car engine starts. Then you need to go to the “Signal Monitoring” section and try to reproduce the conditions under which the error code appears. If error codes are recorded, proceed to check the compression and valve timing. In most cases, after checking and troubleshooting, the error goes away and the car's operation returns to normal. However, if after the work the errors continue to be recorded, they begin checking the fuel supply system.

If checking the fuel supply system does not reveal any abnormalities, there remains one component that may harbor a misfire problem - the intake system, which must be checked for air leaks.

How to Troubleshoot or Reset Trouble Code P0363

Some suggested steps to troubleshoot and fix error code P0363:

1. Perform a spark plug check.
2. Check high voltage wires.
3. Diagnose ignition coils.
4. If everything is in order with the points above, then check the injectors.
5. The problem may come from the PCM or a software error.

Diagnosis and problem solving

The first step is always to check the technical service bulletins (TSB) for your specific vehicle. Your problem may already be known with a known fix released by the manufacturer. This can save you time and money during diagnosis.

Code P0363 is information on a stored cylinder misfire code. Any other stored pass codes will also need to be diagnosed. They are designated P0301 to P0312.

There are many tools available to test the operation of the coil, spark plug, and fuel injector. But the simple method of replacing components between cylinders is the most effective.

This is not always possible to do with fuel injectors, but it works well with coils and spark plugs. Which fail much more often than fuel injectors.

To fix the problem, you will need a scanner to read the saved codes. The scanner will also come in handy for clearing codes as the diagnostic process continues. After completing the steps to replace components, you must clear the codes to perform diagnostics.

It is best to replace spark plugs as a set if the vehicle in question is approaching the recommended replacement interval. However, locate the faulty part before performing any maintenance. When replacing the ignition coil for a specific cylinder, it is recommended to replace the spark plug. This will save you time and money in the long run.

Sometimes, when this problem is detected, some technicians assume that the injector of the relevant cylinder has failed. And they suggest replacing it, although this is simply a reaction (caused by the PCM) to a misfire. This is misleading if you are not familiar with the fuel cut-off system found on some models.

If P0363 persists without any cylinder misfire codes, suspect a faulty PCM or PCM programming error.

Additional diagnostic notes:

The P0363 code must be cleared before the faulty parts are replaced and the injector pulse on the corresponding cylinder is restored.

When using the replacement method to inspect spark plugs, be careful when removing the plugs from aluminum cylinder heads. The threads in aluminum are very fragile and can be damaged if they are not allowed to cool properly.

Diagnostics using the dashboard

It is advisable for the owner of the Russian model we are considering to remember all the error codes that may periodically occur in the system. In addition, it is recommended that you learn how to diagnose the dashboard yourself. It is designed to reflect error codes that occur in the electronic components of the Lada Kalina.

To start the diagnostic process, you will need to press a button that records the daily mileage. While holding it, turn on the ignition by turning the appropriate key. If this manipulation is performed correctly, the arrows on the scales of the speedometer, tachometer and auxiliary indicators will begin to move along a circular path, moving from the initial to the final position.

Upon completion of this movement of the arrows, the owner will need to switch the screen to another mode. This will be done by a special button located on the wiper switch under the steering wheel. Pressing displays a picture with performance indicators of a wide range of devices controlled by the ECU. The software version of the complex is also displayed here - self-diagnosis.

After updating the information three times, the error codes themselves appear on the device, expressed in digital form.

Let's look at the list of errors by number:

1. No. 2 – the error indicates the presence of a deviation of the voltage indicator in the on-board network from the nominal parameter;
2. No. 3 – “speaks” of a failed fuel level sensor in the tank;
3. No. 4 - the so-called error 4 is activated if there is a break in the antifreeze temperature sensor circuit in the cooling circuit or the component itself has become unusable;
4. No. 5 – indicates a breakdown of the outside temperature sensor;
5. No. 6 - confirms the fact of engine overheating;
6. No. 7 – states a critically low level of oil pressure in the corresponding engine circuit;
7. No. 8 – error 8 for non-working brake components of the car;
8. No. 9 – confirms the fact of battery discharge.

The “E” symbol deserves special attention, which indicates the presence of errors contained in the “EEPROM”. Each malfunction, including error 4 and error 8, requires attention from the car owner.

On which cars is this problem most common?

The problem with code P0363 can occur on different machines, but there are always statistics on which brands this error occurs more often. Here is a list of some of them:

• BMW
• Chevrolet
• Datsun (Datsun on-DO)
• Ford
• Hyundai
• Mazda
• Mini
• VAZ 2104, 2105, 2107, 2110, 2114, 2115
• Lada Vesta, Granta, Kalina, Largus, Priora, X-Ray

With fault code P0363, you can sometimes encounter other errors. The most common ones are: P0014, P0363, P1301, P1302, P1303, P1304, P1343, P1345, P1347, P1349, P1357.

Error P0363

This malfunction can be detected by using a special diagnostic device. It indicates that one of the cylinders in the engine is faulty, misfire occurs, and, as a result, the fuel supply to it has stopped.

Note: most modern cars are equipped with a control system that automatically stops supplying fuel to the cylinder if there is even the slightest problem.

In this regard, it would be useful to mention error P1304, which means that in a particular cylinder (in this case the fourth) there is an ignition delay, and this is critical for the converter.

Quite often, along with errors P0363 and 1304, another one may appear - P0300, which indicates that the threshold of exhaust toxicity due to misfire is very high. And this is a rather dangerous problem.

What can cause "triple"?

The causes of the described malfunction can be very different.

To reliably install them, you must first find the faulty cylinder. It is recommended to start such a search from the very moment when it was discovered that the check engine light was on. At least, such recommendations are given by the manufacturer who installed an automatic fault warning system on the car.

The search procedure is quite simple. To do this, it is enough to disconnect the power tips from the spark plugs one by one. As a result of this alternate shutdown, it is possible to determine the inoperative cylinder by the sound of the engine. If the sound of the engine has changed, this means that the culprit of the “triple” has been detected.

If the check light on Kalina is on and computer diagnostics of the engine is carried out, the faulty cylinder will be indicated by the computer. At the same time, this diagnostic method can also help to establish the initial causes that led to its malfunction. They could be the following:

• incorrectly set ignition timing;
• presence of air leaks in the vacuum brake booster;
• defective spark plugs;
• breakdown of electrical wiring and capacitor wires;
• presence of air in the exhaust manifold;
• wear or breakage of piston rings;
• burnout of pistons and valves;
• incorrect valve timing;
• cylinder head defects;
• severe wear of the valve stem seals;
• poor carburetor adjustment;
• air filter contamination;
• use of spark plugs incompatible with this engine.

In this case, the main malfunction leading to the fact that one of the cylinders becomes inoperable is considered to be the failure of the spark plugs. A sign of this may be the fact that Kalina’s engine does not warm up well, especially in the morning.

In addition, it is always worth making sure that when operating a car, only those spark plugs that are recommended by the manufacturer are used. This can extend the life of the engine for a very long time.

Let's sum it up

In a modern car, which can also be considered the Lada Kalina, most systems are equipped with sensors with the help of which the on-board module carries out control. If the check light is on, this indicates that a certain type of malfunction has occurred. The cause is found using a diagnostic device. Sometimes the problem when the check light is on requires the connection of more complex scanning equipment to identify the breakdown. In any case, to prevent malfunctions, it is necessary to perform regular diagnostic inspections, which will avoid premature failure of expensive components. Answering the question of how to reset a check, the answer is obvious: it is necessary to diagnose the malfunction and eliminate it.

A fairly common malfunction is unstable operation of the engine in idle mode, during so-called throttle changes, and also when the speed while driving is low. In this case, the driver begins to feel increased vibrations on the steering wheel, gearshift lever and body.

In other words, the car shakes a little because the engine is shaking. In fact, the concept of “troubling the engine” should be understood that one or more cylinders do not work, that is, the fuel-air mixture in them does not ignite, does not ignite in a timely manner, or the combustion of the charge does not occur in full.

Moreover, if the speed is increased to XX or when the engine is under load (while driving), the operation of the power unit is normalized, the engine twitching disappears, the engine runs smoothly and stably. Next, we will look at why the engine stalls at idle and what the driver should do in such a situation.