BMW MINI cold start acceleration is weak

The ignition system is faulty; The injector's control circuit is faulty; Electromagnetic coil disconnection of the injector; Fuel injector blockage; clogged tubing; The computer is faulty.

Hello, it is normal to do this when the car is cold, and see if the phenomenon disappears after the car is warmed? If my answer is helpful to you, please set it to.

This is normal when the car is cold, and see if the phenomenon disappears after the car is warmed.

Summary. Hello dear, <>

We'll be happy to answer for you. Reasons for the unstable idle speed of BMW MINI hot car:1.

When the air intake manifold is leaking, when the air gas, gasoline vapor and combustion exhaust gases that should not enter the intake manifold cause the mixture to be too thick or too thin, causing the car to idle unsteadily. It is up to the owner to determine whether the intake manifold is leaking: open the engine compartment cover and remove the throttle air filter.

Start the car and block the accelerator with your hand (if the car turns off after blocking, it means that there is no air leak; If it doesn't turn off, there is an air leak somewhere). If you don't put it out, you don't need to rush to turn it out. At this time, first check the nearby pipes to see if there is any inhalation.

If there is inhalation, there is a leak. <>

The reason why the BMW MINI hot car is unstable in idling.

Hello dear, <>

We'll be happy to answer for you. Reasons for the unstable idle speed of BMW MINI hot car:1.

When the air body, gasoline vapor and combustion exhaust gases that should not enter the intake manifold cause the mixture to be too thick or too thin, causing the car to idle unstable. The owner may be able to determine whether the intake manifold is leaking: open the engine compartment cover and remove the throttle air filter.

Start the car and block the accelerator with your hand (if the car turns off after blocking, it means that there is no air leak; If there is no key section and there is a flameout, it means that there is an air leak somewhere). If you don't put it out, you don't need to rush to turn it out. At this time, first check the nearby pipes to see if there is any inhalation.

If there is inhalation, there is a leak. <>

Hello dear, <>

Excessive carbon deposition on the throttle: excessive carbon deposition on the throttle and surrounding air intakes, and changes in the cross-sectional area of the air duct, make the control unit unable to accurately control the idle air intake, and will also cause the mixture to be too thick or too thin, resulting in unstable idle speed of the car. 3.

Intake system actuator failure: There are many actuators in the engine intake system, such as throttle motors, idle stepper motors, DUTY air solenoid valves, air flow meters, intake pressure sensors, etc. , all of which are damaged, causing the vehicle to idle unsteadily.

Fuel system failure: Faults such as clogged injectors, clogged fuel filters, clogged fuel pump filters, faulty fuel pressure regulators, and clogged return lines can all lead to incorrect fuel injection, resulting in over-concentrated or over-thin mixtures, resulting in unstable car idling. State stove ignition system failure:

Faults such as ignition module failure, incorrect spark plug clearance, spark spark ablation electrode or trouser damage, and excessive resistance of the high-voltage line lead to a decrease in ignition spark energy or **, resulting in unstable car idling. If the idle speed of the car fluctuates from high to low, it should be dealt with as soon as possible, knowing that the engine is no longer at the ideal idle speed, and the fuel economy and environmental protection will deteriorate. <>

Summary. Hello, don't worry, I can ask for your question, but wait a minute, I need text for about 2 minutes.

Hello, don't worry, I can ask for your question, but wait a minute, I need text for about 2 minutes.

Hello, this situation is normal due to the abnormal combustion of the mixture. If you have time, first check the internal carbon deposit, see if there is too much carbon, clean it first, and then spark plug ignition coil and fuel injector to see if the atomization is not good. There is also the pressure of the oil pump and the gasoline filter to see if it is too dirty and oily.

It's a pleasure to serve you, and I wish you a pleasant ride.

There is no carbon deposit inside, spark plugs, ignition coils, gasoline, and the state has been replaced with other cars, or it is not good.

If these are not good, you need to check the oxygen sensor carbon canister solenoid valve mold hail change, waste gas valve to see if there is a problem. There is also a smoke agent for the air intake system to see if there is a leak.

If it is ternary, it can only be cleaned with an endoscope or directly removed with oxalic acid.

If I remove the upper oxygen sensor, can I try to see if it is blocked?

If an endoscope is required, it can be seen from the oxygen sensor.

Okay, I've removed the servo motor and put it back on, so it has nothing to do with that.

This is all adaptive, and as long as there is no fault light and fault code, it will be fine.

No. Without this, it doesn't matter.

I've just heard that this car is a car that has been going on after the valve seat insert has been replaced, and the seat is not ready.

If there is a problem with this, you can measure the cylinder pressure and the air intake system to see if there is any air leakage.

If I can help you, please give me a thumbs up Thank you!

If your BMW mini won't idle, it could be due to a variety of reasons. Here are the possible issues and workarounds:

1.The air flow meter is faulty. An air flow meter measures the flow of air to ensure that the engine receives the correct air-to-fuel ratio. If the air flow meter fails, the engine may fail to idle or lose power. The solution is to replace the air flow meter.

2.Problems with air intake ducts. Air intake ducts can leak or become blocked, which can prevent the engine from getting enough air to function properly. Inspect the air intake duct for leaks or blockages, and clean and repair it.

3.Failure of the idle control valve. The idle control valve adjusts the engine idle speed to maintain the stability and smoothness of the engine.

If the idle delay control valve fails, the engine may fail to idle or flicker. Check that the idle control valve is working properly and clean and replace it.

4.Fuel system issues. There may be problems in the fuel system, such as insufficient pump pressure or clogged fuel filters, which can prevent the engine from getting enough fuel to function properly. Check that the fuel system is operating properly and make repairs.

In conclusion, if your BMW mini is not idling, check the above issues and make proper repairs and replacements. If you are not sure how to do this, contact a professional car repair technician.

Summary. Dear, I am very happy to answer for you! The reasons for the slow acceleration of the BMW MINI engine failure light are as follows:

1。Air leakage in the intake pipe causes the mixture to be too thin. 2.

Low fuel pressure and clogged injectors and fuel filters lead to a decrease in fuel injection or a slow increase in fuel volume. 3.The signals of the air flow meter, intake manifold pressure sensor, and throttle position sensor are abnormal.

Resulting in no or very little increase in fuel injection. 4.Abnormal sensor signals lead to inaccurate ignition timing and ignition delays.

5.Weak high-voltage sparks due to poor spark plugs, igniters, or high-voltage wires. 6.

The throttle body is dirty. 7.The exhaust gas recirculation system is not working properly.

8.The exhaust pipe is clogged. 9.

The cylinder pressure is low. 10.Turbocharging system failure.

Dear, I am very happy to answer for you! The reasons for the slow acceleration of the BMW MINI engine fault light are as follows:1.

Air leakage in the intake pipe causes the mixture to be too thin. 2.Low fuel pressure and clogging of injectors and fuel filters lead to a decrease in fuel injection or a slow increase in fuel volume.

3.The signals of the air flow meter, the intake manifold pressure sensor, and the throttle position sensor are abnormal. Resulting in no or very little increase in fuel injection.

4.Abnormal sensor signals lead to inaccurate ignition timing and ignition delays. 5.

Weak high-voltage sparks due to poor spark plugs, igniters, or high-voltage wires. 6.The throttle body is dirty.

7.The exhaust gas recirculation system is not working properly. Source 8

The exhaust pipe is clogged. 9.The cylinder pressure is low.

10.Turbocharging system failure. <>

The rear taillights on both sides are also not lit when driving.

There is a delay phenomenon when starting.

Dear, the rear tail lights on both sides are not lit when driving, which may be due to damage to the brake bulb. <> kiss, there is a delay phenomenon when starting for the following reasons: hold high 1

Faulty camshaft sensor. 2.Insufficient hydraulic squeezing.

3.The solenoid valve of the canister is faulty. Pei Nianchang <>

Summary. Generally speaking, it is abnormal, you can refer to the content of the screenshot for details.

Generally speaking, it is abnormal, you can refer to the content of the screenshot for details.

Why is there a cold car, and after a few seconds it is normal?

Take a look at the screenshot.