The inspect engine irradiate (CEL) or company engine shortly (SES) irradiate on a Ford may come on due to a loosened gas cap, worn spark plugs, faulty ignition coil, bad oxygen sensor, and other issues. This guide offers instructions on how to reset Ford examine engine light and common problems that turn on the check engine light on Ford vehicles. 

Ford inspect engine light will turn on once you turn on the ignition under typical operation but should rotate off and also stay off as soon as you startengine irradiate will rotate on once you revolve on the ignition under common operation yet should turn off and stay off as soon as you begin the engine.

You are watching: 2001 ford focus check engine light

What does it mean when the Ford inspect engine lightengine light comes on? 

If the examine engine light in her Ford comes on as soon as driving, it means the On-Board Diagnostic (OBD) system has detected a trouble with the engine or emission system. If the examine engine light is flashing, it shows a significant engine misfire which enables unburned fuel to it is in dumped right into the catalytiengine light in her Ford come on when driving, it method the On-Board Diagnostic (OBD) system has detected a problem with the engine or emissions system. If the check engine light is flashing, it shows a major engine misfire which allows unburned fuel to be dumped into the catalytiengine light is flashing, it suggests a major engine misfire which enables unburned fuel to be dumped into the catalytic converter.

Symptoms

*

Here are some of the most usual symptoms owners notification when your Ford inspect engine lightengine light stays on.

Ford might idle or operation roughThe engine won"t stay runningFord loses strength or is grounding in gear.Hesitates throughout acceleration

In part cases, the Ford check engine light come on, and no various other symptoms engine light come on, and also no various other symptoms are noticed.

How come Reset Ford check Engine LightEngine Light 

The very first step in troubleshooting the examine engine irradiate is to check out the fault coengine light is to read the error codes v an OBD-II scanner. 

Allow the scanner to power up and select Ford from the main menu, then OBD-II.
*
Select Engine Module, then press read come retrieve codes that have actually triggered your Ford inspect engine light. These room the codes that have actually triggered the inspect engine light on engine light. These are the codes that have triggered the examine engine irradiate on engine irradiate on her Ford.
Once you resolve the difficulty that triggered the code, come back to the key menu and also select Erase error Data.
*

 

Your Ford inspect engine irradiate on causes vary. Without reading Ford examine engine diagnostic problem codes (DTC), that is an overwhelming to understand engine light on reasons vary. Without analysis Ford examine engine diagnostic trouble codes (DTC), the is challenging to understand the problem.

These instructions work-related on 1996 and also newer Ford vehicles, consisting of Ford Mustang, Focus, Fiesta, F-150, Ranger, Explorer, EcoSport, Escape, Fusion, F250, Expedition, Edge, Transit, Taurus, Flex, Shelby GT, C-Max make in the USA. On europe models, vehicles have to be 2000 or newer. 

Common problems That cause Ford examine Engine LightEngine Light

This is a perform of the most common problems that trigger Ford"s check engine light tengine light to stay on. 

Loose gas capSpark plus Mass airflow sensorVacuum leak 

Hundreds of feasible causes will turn on the Ford inspect engine light. To find out why the examine engine light is on in your Ford, review the faengine light. To uncover out why the examine engine irradiate is ~ above in your Ford, check out the faengine light is ~ above in your Ford, review the fault codes. 

Let"s look at at few of the most usual problems and also codes the often cause the inspect engine irradiate to remain in a Forengine irradiate to continue to be in a Ford vehicle. 

Loose Gas Cap

*

One the the most typical triggers that the examine engine irradiate on a Ford car is a loosened gas cap. If you freshly stopped at a gas station, make sure the gas lid was properlengine light on a Ford car is a loose gas cap. If you freshly stopped at a gas station, make sure the gas lid was appropriately tightened.

In some cases, the O ring in the fuel lid gets damaged. If that"s the case, you will should replace the fuel cap. You can use one OBD-II scanner or journey the automobile for a few days for your Ford engine computer to reset the examine engine lightengine light.

Newer Ford vehicles equipped with straightforward Fuel have actually no gas lid at all.

Mass Air flow SensorSensor

*

 

Often referred to as the MAF sensor, the mass airflow sensor deserve to fail, triggering the Ford check engine light to come on. If her Ford MAF sensor is defective, friend will notification engine hesitation during acceleration and a dramatic fuel economic climate decsensor, the mass airflow sensor can fail, triggering the Ford check engine irradiate to come on. If your Ford MAF sensor is defective, you will an alert engine hesitation throughout acceleration and a dramatic fuel econoengine irradiate to come on. If your Ford MAF sensor is defective, you will notice engine hesitation throughout acceleration and a dramatic fuel economic climate decsensor is defective, girlfriend will notification engine hesitation throughout acceleration and a dramatic fuel economic situation decrease.

Typical codes room stored in the ECU when the MAF fails P0171 and P0174. Resetting this codes by disconnecting the battery for a few minutes go not resolve the problem. In a couple of cases, you may fix this trouble by using a MAF sensor clsensor cleaner.

The recommended solve is to change your Ford fixed Air circulation Sensor with a new OEM Ford unit. Aftermarket Ford MAF sensors can sometimes failure even once branSensor with a brand-new OEM Ford unit. Aftermarket Ford MAF sensors have the right to sometimes failure even when brand new.

Oxygen SensorSensor

The oxygen sensors (O2) placed on the catalytic converter can fail to cause the examine engine irradiate to come on, negative engine performance, and a diminish in fengine irradiate to come on, negative engine performance, and also a diminish in fuel economy.

One of the most usual Ford codes regarded the oxygen sensor is P0132, caused by an oxygen sensor circuit high vosensor is P0132, caused by an oxygen sensor circuit high vosensor circuit high voltage.

VCTR Solenoid

A typical problem that triggers the inspect engine irradiate on Ford vehicles, specifically Fusions equipped through the 4 cylinder engine, is a defective change Camshaft time solenoid known as Vengine light on Ford vehicles, particularly Fusions equipped through the 4 cylinder engine, is a defective variable Camshaft time solenoid recognized as VCT solenoid.

A defective VCT solenoid will reason the engine to operation rough and trigger the inspect engine light simultaneously. The code concerned this difficulty is typically P0012 - "A" Camshaft place - timing Over-Retarded (Bank 1). Connected codes include P0011, P0010, Pengine irradiate simultaneously. The code related to this trouble is generally P0012 - "A" Camshaft position - time Over-Retarded (Bank 1). Connected codes incorporate P0011, P0010, P0013, P0014.

Ignition Coils

The ignition coils may fail, triggering the Ford check engine light to come on. Common symptoms include check engine light on however engine misfire, to run rough, and fault codes ranging from P0300 threngine irradiate to come on. Common symptoms include check engine light on but engine misfire, to run rough, and also fault codes varying from P0300 threngine light on however engine misfire, running rough, and also fault codes ranging from P0300 v P03012.

It is encourage to change the spark plug boots at the same time. If her Ford check engine light continues to be on after instead of the ignition coils, check the MAF sensor, spark plugs, catalytic converter, engine light continues to be on after replacing the ignition coils, examine the MAF sensor, spark plugs, catalytic converter, and thsensor, spark plugs, catalytic converter, and also the ECU.

What walk it median when Ford check engine lightengine light flashes? 

If the check engine or organization engine irradiate is flashing, it way that the OBD-II system has actually detected an engine misfire. This is regularly caused through a negative spark plug or defective ignition coil but can be led to by other issues.

When her Ford inspect engine lightengine light is flashing, fuel is no getting burned in the cylinder however is existing unburned and also typically gets burned at the catalytic converter.

Avoid driving your Ford if the inspect engine light is flashing, together this condition may cause unnecessary damages to the engine and also the catalyticengine light is flashing, together this condition may cause unnecessary damage to the engine and also the catalytic converter.

Ford inspect Engine light FlasEngine irradiate Flashing 8 Times

If your Ford examine engine irradiate blinks eight times as soon as you rotate on the ignition, it means that the is not all set for State emission Inspection, I/M test. This frequently happens if the password were freshly erased with an OBD-II scanner or the battery was dengine irradiate blinks eight times as soon as you revolve on the ignition, it method that it is not ready for State emissions Inspection, I/M test. This commonly happens if the codes were freshly erased through an OBD-II scanner or the battery was disconnected.

As lengthy as the lights prevent blinking after eight flashes, friend can continue to drive the vehicle. All systems have to be tested within a few driving cycles, and the CEL need to no lengthy flash in ~ startup.

Frequently inquiry Questions

Can ns reset the inspect engine light by disconnecting the engine irradiate by disconnecting the automobile battery?

Yes, disconnecting the battery usually removes the ECU codes. By turning the examine engine light off this way, you will certainly not resolve the problem. If you believe the inspect engine light demands to it is in off, drive the auto for a few days, and also the CEL will reset itself. The Onboard Diagnostic device in your vehicle continually monitors your vehicle and also will revolve off the CEL if the problem is solved. If the trouble hasn"t to be resolved, also if girlfriend disconnect the battery, the CEL will come earlier up again, which deserve to be as soon as you restart the automobile or increase toengine light turn off this way, you will certainly not resolve the problem. If you think the inspect engine light demands to it is in off, drive the car for a few days, and also the CEL will certainly reset itself. The Onboard Diagnostic device in your auto continually monitors your vehicle and will revolve off the CEL if the problem is solved. If the trouble hasn"t been resolved, even if girlfriend disconnect the battery, the CEL will come back up again, which can be as shortly as friend restart the automobile or increase toengine light demands to be off, journey the auto for a couple of days, and also the CEL will certainly reset itself. The Onboard Diagnostic system in your vehicle continually monitors your vehicle and will revolve off the CEL if the problem is solved. If the difficulty hasn"t been resolved, also if you disconnect the battery, the CEL will come ago up again, which have the right to be as quickly as girlfriend restart the auto or up to a few days.

Will my vehicle pass safety and security emissions if the inspect engine irradiate is ~ above or recengine irradiate is ~ above or newly reset?

If the inspect engine irradiate is on, it will certainly not happen the emissions inspection/smog test. If the irradiate was recently reset with an OBD2 scanner or by disconnecting the battery, you have to drive the auto for a pair of days for the equipment to be ready engine irradiate is on, it will certainly not pass the emissions inspection/smog test. If the light was freshly reset through an OBD2 scanner or by disconnecting the battery, you need to drive the vehicle for a pair of days because that the systems to be ready for testing.

Check engine light is top top bengine irradiate is on but no codes?

It might be since you are using an OBD2 scanner the does not assistance the protocol offered in your car. Try a various scanner. Also, there may be one issue interacting with the ECU as result of a damaged wire or ECU malfunction.

Would the examine engine irradiate on reason the car tengine light on reason the auto to no start?

No. The inspect engine irradiate is no the reason why the automobile doesn"t start. If the vehicle doesn"t start, review the codes, and maybe the CEL will provide you a code that can assist you diagnose the car. Clearing codes will certainly not do youengine light is no the factor why the vehicle doesn"t start. If the automobile doesn"t start, review the codes, and also maybe the CEL will offer you a password that can aid you diagnose the car. Clearing codes will not make your auto start.

Why is my check engine light came on after theengine light come on after the oil change?

It may be just bad timing. An oil change is no going to cause the CEL. Unless a sensor is by chance unplugged, disconnected, or damaged during the oil change, take her car earlier to the auto repair shop that readjusted your oil and also have castle diagnose the problem.

See more: How Do U Say Fake In Spanish ? How To Say Fake In Spanish (Falso)

Is it typical for the examine engine irradiate to rotate on ~ repengine irradiate to turn on after repair service?

Why is my check engine light on after replacing engine light on after instead of the battery?

Drive the auto for a pair of work and enable the ECU to reset itself. If the CEL continues to be on, review codes.

Why walk my check engine light revolve on as soon as the engineengine light turn on once the engine overheated?