Can you run the engine while reading the codes?

Can you run the engine while reading the codes?

In the two links you provided in comments, it states to plug in your code reader, turn the ignition on, but don’t start the engine, then read the codes. It’s not telling you “cannot run the engine” while reading the codes, it’s just saying not to do it to read the codes at first.

Why is DTC should not be checked when the engine is running?

Why it is said that DTC (Diagnostic Trouble Code) should not be checked when the engine is running? In the two links you provided in comments, it states to plug in your code reader, turn the ignition on, but don’t start the engine, then read the codes.

How does the engine control module detect a misfire?

The engine control module is using a lot of sensors to know when to ignite the spark plug and when to inject the fuel into the cylinder and to optimize the air-fuel mixture. To detect a misfire, the engine control module is often using the crankshaft sensor to detect a misfire.

Is it OK to drive an engine that is misfiring?

Instead from that, misfires can damage other sensors in the engine like the O2 sensors. So, I would never recommend driving an engine that is misfiring for any long distances. Short distances to your mechanic workshop without putting a load on the engine is fine, but do not ignore the misfires and keep driving.

When do I get a misfire code on my engine?

Misfire codes do not always indicate there is an issue with the ignition system. A misfire code is set when the computer detects a situation where there is an unexpected change in crankshaft speed. With most engines, the crank sensor is the key component in determining a misfire.

What to do when your engine starts to run bad?

Locate the connector where it attaches to the back of the fuel injector. If you have trouble locating the fuel injectors, consult an application specific repair manual to help you find them. If the engine starts to run worse with one injector disconnected, reconnect it and move on to the next one.

What should you do if your car stops running?

If your fuel gauge shows you have sufficient fuel and your car still stops running, you should go get it checked by a mechanic. An alternator is responsible for managing the supply of electricity in your vehicle. If your car suddenly stops running, it is possible that the alternator has gone bad.

What to do if you have a misfiring cylinder in your car?

If you are still having trouble finding the misfiring cylinder, you can disconnect the power to the fuel injectors one at a time to see what effect it has on the engine. Locate the connector where it attaches to the back of the fuel injector.