CEL slow higher rpms

My car is a DCT with JB4 tune and BMS intake. When I shifted at higher rpms my car sputtered and slowed down. The Check Engine Light came on the dashboard, so I turned off the engine and started it back up. Then everything was back to normal. I tried to run the stock tune and it bypassed the JB4 completely and the same problems occurred. Do you know what might be causing this?
Experienced mechanics share their insights in answering this question :
Hello there, thank you for asking about your 2013 BMW 135i. The very first thing I would do is have the vehicle scanned for trouble codes, as sputtering and a Check Engine Light can be caused by a wide variety of symptoms. Retrieving the trouble codes can give a clue as to what the issue may be. You mention that you have had high performance aftermarket components installed; it may be possible that they are interfering with the stock engine performance or emission systems, and causing the check engine light to come on. If you want to have this checked by a certified mechanic, a technician from YourMechanic can come to your home or office to have the vehicle scanned for trouble codes.

How to Identify and Fix Common car Problems ?

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The BMW Drivetrain malfunction is an error caused due to a potential malfunction of the engine or transmission. To protect the engine, transmission, and driver, the car switches into safety mode. This limits the overall engine output saving it from further damage.
This should be taken seriously as if not attended to; it is a malfunction that can lead to expensive repairs. However, a BMW drivetrain malfunction does not automatically result in the car`s breakdown, meaning that if action is taken quickly, the issue can usually be resolved without too much inconvenience.
A Drivetrain Malfunction Indication on your BMW can essentially mean that the Engine Control Module (ECM) has detected an issue with the transmission or the engine. It can also mean that the ignition or fuel systems are in trouble.
What is Limp Mode? In short, limp mode is your BMW`s way of protecting your engine and transmission. When the engine or transmission control unit, called an ABS, detects faulty functioning, the malfunction code is stored in the device and is then assessed to determine the severity of the issue.
If you notice any difficulty shifting gears or you hear a screeching or whining noise, this could be an indication that your powertrain transmission is in need of repairs. Check the transmission fluid – If your transmission fluid is low or dirty, then you may experience issues with the powertrain.
The “Transmission Malfunction” light will come on when the car suspects there to be a problem with the transmission. Your car will typically put the car into “limp mode” when this light comes on. This “Limp Mode” limits the car in speed in an attempt to save the transmission from further damage.
The average cost for a BMW 328i xDrive Powertrain Control Module Replacement is between $2,154 and $2,194. Labor costs are estimated between $154 and $194 while parts are priced between $2,000 and $2,000.
A drivetrain malfunction occurs when a malfunction is detected by the car`s engine computer. The malfunction is either in the engine or transmission. Your car may alert you to this problem, showing the error “Drivetrain Malfunction” and warning you to drive moderately.
An engine that is hesitating to accelerate is most likely dealing with a fuel/air mixture that is too lean. Engine`s that are running inefficiently will begin to show signs like hesitation which will only become worse over time.
Common signs include intense car vibrations and abnormal noises, like clunking, rattling, and scraping, coming from under the vehicle.
Speed sensors, the MAF, MPS and TPS; to name just a few of the essential monitors within your engine. All of these send signals to the control units, so as with faulty wiring, if one of these monitoring units is not functioning correctly, then it could send a message that causes the car to enter limp mode.
The MAF sensor regulates the air-fuel mixture in the engine and might become dirty. The dirt on the sensor sends wrong values to the control unit, and the limp mode is activated.
Automatic gearbox telltale signs include hesitation, slipping, or “trembling” during gear changes. Manuals are more likely to grind. Jerking and clunking noises are more likely to be caused by failing engine and transmission mounts.
The most common reason your BMW won`t shift gear is that the transmission fluid level is lower than recommended. Even if you add transmission fluid regularly, the low fluid level could be caused by a leak.
If you start to hear whining, humming, or clunking noises under your BMW, it could be a sign of transmission trouble. These noises could stem from the fact that the transmission fluid is breaking down. The fluid is designed to lubricate the transmission`s components and keep them cool.
Vibration is usually caused by an out of balance or defective tire, a bent wheel or a worn driveline U-joint. You may find that the car shakes the car in an up and down motion. You may feel vibration through the seat, the steering wheel or even in the brake pedal.
The cost to fix a drivetrain depends on the type of damage, model, and vehicle`s year. Minor repairs like replacing a gasket or seal should cost you anywhere between $100 to $200. However, for major replacements, you will be spending close to $4000.
The “Drivetrain Malfunction” error code is an indication that something has gone wrong with one or more components within your car`s powertrain system. If you suddenly see this error message pop-up on your BMW dashboard, pull off to a safe spot and turn the car off for 5-10 minutes.
Yes, transmission problems can cause your check engine light to come on. Your automobile`s main computer, the engine control module (ECM), talks with system sensors to make sure everything is okay. If the transmission sensors report a problem, the ECM will turn on the check engine light.
The check engine light — more formally known as the malfunction indicator lamp (MIL) — is a signal from the car`s engine computer that something is wrong. The light could be a minor issue, such as a faulty gas cap, or it could mean something more serious, such as a misfiring engine.
To answer your question; yes, it can. I had a couple o2 sensors go bad at the end of the exhaust manifold that would spring up limp home mode and a “drivetrain malfunction” every time I would give it the beans.
A clogged fuel or air filter can make your engine sputter and your acceleration lag because the engine is not getting enough fuel or air, respectively. The combustion chamber needs the correct amount of air and fuel in order to generate combustion efficiently.
When you press down the accelerator pedal and get minimal output, it could mean you have a problem with your fuel system. The most probable issue is a clogged fuel filter. Your fuel filter works to ensure that dirt and debris do not get into the fuel system.
If the throttle sensor or TPS is broken, your car can start to accelerate on its own. As you can guess, it results in higher RPM. Other than that, you may also experience misfires or will have trouble turning the engine on.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

CEL slow higher rpms
ANSWER : Hello there, thank you for asking about your 2013 BMW 135i. The very first thing I would do is have the vehicle scanned for trouble codes, as sputtering and a Check Engine Light can be caused by a wide variety of symptoms. Retrieving the trouble codes can give a clue as to what the issue may be. You mention that you have had high performance aftermarket components installed; it may be possible that they are interfering with the stock engine performance or emission systems, and causing the check engine light to come on. If you want to have this checked by a certified mechanic, a technician from YourMechanic can come to your home or office to have the vehicle scanned for trouble codes.

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Why do the RPMs stay higher when I shift into Neutral?
ANSWER : Hello. The symptoms you describe can commonly be caused by a vacuum leak or faulty idle air control valve. A vacuum leak may allow unmetered air into the engine, which may causing the idle to stay high when the transmission is put into neutral. It may also be possible that the idle air control valve has malfunctioned and is causing the issues. The idle air control valve is the component that is responsible for maintaining and adjusting engine idle speeds. If it malfunctions it may cause an erratic or irregular idle, as you are experiencing. I would start by closely inspecting the vehicle for any vacuum leaks, perhaps in the form of a leaky gasket or worn out hose, and then move on to testing the idle air control valve.

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Check Engine Light is on – codes P0313, P0299, P0304
ANSWER : Hi there. Based on what you’ve described, this could be a combination of faults between 2 or more things; however, I don’t believe the coils and spark plugs are at fault. One of the codes is set during a low fuel misfire (lean condition), one is specifying a misfire on cylinder 4, and one is a turbo related code; all based on a generic code investigation.

The make and model of the vehicle helps, but is not necessary at the moment. When a low fuel pressure misfire is set, there is a lean condition that has been detected by the sensors and one of the codes is telling us in which cylinder this is occurring. A possibility is a restricted fuel injector, loose injector harness, poor pin fit in the wire harness, and an air leak near that cylinder’s port in the intake manifold.

I’m leaning more towards a leak or crack somewhere creating an air leak since we also have a turbo related code stored and an intermittent rough start when cold. I strongly suggest having a qualified technician perform an inspection to determine the root cause. YourMechanic has several available technicians that can assist you with a Check Engine Light inspection and determine exactly what is giving rise to codes P0313, P0299, and P0304.

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Leaving stop light car runs high rpms 5000-6000 and doesn’t want to go over 20 mph 2009 Chevy Traverse
ANSWER : Hi there – first thing to check is the transmission fluid level – low fluid levels can cause lots of problems like this – your transmission is obviously slipping badly. If the fluid is at a correct level, and doesn’t smell burned, you may well have burned out clutches in the transmission, or solenoid or valve problems in the valve body of the transmission. The problem codes reviewed by your mechanic should have helped guide the diagnosis. I would recommend a 2nd opinion transmission inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

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Isit normal for my car to shift between 2000 RPMs and 3000 rpms
ANSWER : Hello, thanks for writing in about your Chrysler Voyager. The shift RPMs will be higher if you are further down on the throttle on faster acceleration. Shifting between 2000 and 3000 is normal.

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Engine mifiring at higher RPMs, tachometer spiking up
ANSWER : Try to replace the ignition module and coil which is mounted top right side of the motor. The ignition module supplies the tach signal and the coil supplies the spark to the plugs. It is a good idea to replace both as a set since a coil can burn out the new module.

This should fix the problem. Make sure you have a fresh set of wires and plugs also with a new distributor cap and rotor. If you need help with this contact a certified mechanic who can diagnose the cause of your misfire and fix it accordingly.

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I have a 2009 altima automatic and unless i use the manual shift feature the RPMs tend to stay under 2000
ANSWER : Most of the Nissan Altimas around this year are equipped with a CVT transmission. These transmissions are totally different from a normal transmission and as such they can sometimes feel different as well. It is possible that you are having issues with your CVT transmission or are just not familiar with how a CVT feels in comparison to a regular transmission. The shifts to not feel the same. With a CVT it almost feels like no shift ever occured, yet you are in a higher gear. I would recommend having a qualified professional with experience in CVT transmission diagnosis inspect your transmission for issues.

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Eps light came on and car started to slow down, stepped on gas and car was still slowing down. Had to shut it off then turn it on
ANSWER : Hi there. In most cases when the EPS light comes on, it indicates an electrical fault with the electronic power steering system. As a safety device, most of the time, Hyundai and other manufacturers will activate a fail safe or "limp mode" that restricts the throttle to ensure you have an opportunity to drive safely to a mechanic to have this issue inspection. I would recommend having a professional mobile mechanic come to your location to complete a service light inspection, so they can determine what’s going on with your Hyundai.

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