Mercedes Mullins
Bad fuel injectors can cause a car to shut off. One user claims that a bad injector can overload the injector driver and even burn it out. Another user claims that replacing the injector fixed a problem, but it didn't fix the problem that started them out on a trouble-shooting odyssey.
| Characteristics | Values |
|---|---|
| Engine misfiring | Overloading the injector driver |
| Engine shutting off | While driving or coming to a stop |
| Engine running fine | After replacing the injector |
| Code | 45 |
What You'll Learn
Engine misfiring
One of the main reasons why bad fuel injectors can cause engine misfiring is that they may not be able to deliver the correct amount of fuel to the engine. This can lead to a rich fuel mixture, which can cause the engine to run too hot and overheat. This can cause the engine to shut off completely.
Another reason why bad fuel injectors can cause engine misfiring is that they may not be able to deliver the fuel at the correct time. This can cause the engine to run too fast or too slow, which can cause the engine to misfire. This can also cause the engine to overheat and shut off completely.
In addition to causing engine misfiring, bad fuel injectors can also cause other problems, such as reduced fuel efficiency and reduced engine performance. This can cause the car to lose power, stutter, and even shut off completely.
If you suspect that your car's fuel injectors are not functioning properly, it is important to have them checked and repaired as soon as possible. This can help to prevent engine misfiring and other problems from occurring.
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Overloading the injector driver
When a faulty injector is present in a vehicle, it can cause the engine to misfire. This can lead to overloading the injector driver and even burning it out.
The injector pulse width can also be affected by a faulty injector. This can cause the injector pulse width to increase to about 5 (from about 2 when it was behaving normally).
When a faulty injector is present in a vehicle, it can cause the engine to misfire. This can lead to overloading the injector driver and even burning it out.
The injector pulse width can also be affected by a faulty injector. This can cause the injector pulse width to increase to about 5 (from about 2 when it was behaving normally).
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Burned out injector
A burned-out fuel injector is a common cause of a car shutting off. If one injector is burned out, it can overload the injector driver and burn it out. This can cause the car to shut off as the engine will not be able to run properly. If you suspect that your car has a burned-out injector, it is important to have it checked by a professional mechanic. They can diagnose the problem and recommend the best course of action to get your car running again.
Symptoms of a burned-out injector can include the car stalling, the engine losing power, and the car not starting. If you experience any of these symptoms, it is important to have your car checked by a professional mechanic as soon as possible.
To prevent a burned-out injector, it is important to maintain your car regularly. This includes checking the fuel injectors for any signs of damage or wear and replacing them if necessary. It is also important to use the correct type of fuel for your car as using the wrong type of fuel can cause damage to the fuel injectors.
If you suspect that your car has a burned-out injector, it is important to have it checked by a professional mechanic. They can diagnose the problem and recommend the best course of action to get your car running again. In some cases, the injector may need to be replaced, but in other cases, it may be possible to clean or repair the injector.
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Ignition spark on all cylinders
Bad fuel injectors can cause a car to shut off. This is because bad fuel injectors can overload the injector driver and even burn it out.
If you have a faulty fuel injector, it can cause the engine to misfire and the car to shut off. This is because the injector pulse width increases to about 5 (from about 2 when it was behaving normally).
If you have a faulty fuel injector, it can also cause the oxygen sensor reading to shoot up and the INT value to drop to about 100 to compensate.
If you have a faulty fuel injector, it can also cause the car to shut off when coming to a stop or the car to shut off while driving at highway speeds.
If you have a faulty fuel injector, it can also cause the car to have an ignition spark on all cylinders even when it wouldn't start so I'm still assuming it's a fuel problem. The fuel pressure tests okay too. The only code has been a 45.
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Faulty sensors
If the vehicle shuts off when coming to a stop versus the vehicle shutting off while driving at highway speeds, it could be a sign of a faulty sensor. One user reported that their oxygen sensor reading shot up and the INT value dropped to about 100 to compensate. The injector pulse width increased to about 5 (from about 2 when it was behaving normally).
Another user found that their car had an ignition spark on all cylinders even when it wouldn't start so they replaced the oxygen and MAP sensors and found that the car had an ignition spark on all cylinders even when it wouldn't start.
Replacing the injector fixed a problem, for sure, but it didn't fix the problem that started them out on this trouble-shooting odyssey.
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Frequently asked questions
Yes, bad fuel injectors can cause a car to shut off. If you have some bad injectors, it can overload the injector driver and even burn it out.
Symptoms of bad fuel injectors include engine misfiring, drop in exhaust tone, increase in oxygen sensor reading, and drop in INT value.
Replacing the injector can fix a problem.
