How To Test BMW Injectors?

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1. Attach the test-light clip first to an engine bolt or bare metal bracket. 2. Disconnect the fuel injector’s electrical connector.

How to Test Your Car’s Fuel Injectors in Steps

  • Start the engine after it has warmed up, then let it idle for up to ten seconds.
  • You can feel the exhaust manifolds with your bare hands to see whether they are particularly warm. Of course, you shouldn’t attempt this with a hot engine. Alternatively, you may try drizzling some water on the exhaust manifold.
  • Before removing the connector from the injector, make sure the cylinder is not warm.
  • Verify that the injector connector’s terminals are not rusted.
  • To determine whether there is power in the injector connector, use an ohm meter or a Noid light. Noid lights are reasonably priced and available at lots of auto parts stores.
  • Check the injector’s resistance with an ohm meter to see if it is appropriate.
  • Reinstall the injector connector where it belongs.
  • If you don’t have an ohm meter or a Noid light, you can listen for an injector click with a piece of rubber hose or a stethoscope. Check to see whether you can hear the injector clicks by placing the rubber hose or stethoscope against the injector.
  • Remove the spark plug wire or unplug the coil pack.
  • Attempt to start the car.
  • Check to see if the spark plug is dry after removing it. If it is, it indicates that the cylinder is not receiving fuel from the injector. On the other hand, if the plug is wet and smells like gasoline, the injector in that cylinder is not malfunctioning.

OEM Test Plans and Pressures

Excellent service for repair businesses or do-it-yourselfers who wish to have their VDO GDI fuel injectors flow tested to OEM specifications before installation after cleaning and servicing them.

BMW Index 12 Injectors are securely tested in specialist GDI test equipment using precision measuring devices that measure liquid flow shot by shot at actual working pressure, in accordance with OEM BMW test protocols, at operating pressures typically up to 3000 PSI. This type of testing enables accurate measurement in real-world settings that can be digitally compared to OEM flow test plans established by the injector manufacturer. NO GUESSING. PERIOD!

GDI fuel injectors operate pulse widths at microsecond measurements, whereas port systems operate at millisecond time measurements. Our GDI-specific equipment tests at these microsecond operational parameters while performing full function load testing. GDI systems also operate at significantly higher fuel pressures than port injection.

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The bulk of our rivals’ port fuel injector test benches for GDI testing are simply unable to carry out any precise OEM testing or Piezo stack regeneration. We are able to accurately report the injector performance against the OEM injector specific test plan thanks to this precision testing under real GDI injector working conditions. Any shop testing your GDI injectors on a port fuel injection bench at a pressure lower than operational pressure CANNOT achieve this level of accuracy. You will receive the operator’s best estimate of how your GDI fuel injectors are functioning if you pay to have them evaluated on an ASNU or comparable port fuel injector flow bench.

$29.95 for each injector. According to the number of injectors you are shipping, choose quantity.

Only clean index 12 BMW GDI fuel injectors supplied by the customer are intended for this testing service. No exceptions—testing won’t be done on unclean injectors! In this service, no parts are changed.

Piezo stack regeneration is a service that may be added on and is offered here.

Special Note: You should replace your injectors with updated index 12s if you have anything other than index 11 or 12.

  • The injector coil is electrically tested.
  • nozzle leaks down under high pressure
  • Four OEM volume standard tests
  • actual oscilloscope
  • whole test report, downloadable

How can a malfunctioning injector in a BMW be identified?

  • Engine malfunctions Having dirty fuel injectors could result in your car’s engine misfiring.
  • Idling can be difficult.
  • Your fuel mileage is low.
  • Starting to dance is the RPM needle.
  • You Can’t Start Your Car

How can I check the injector index on my BMW?

Following the BMW part number on the injector head is the index number. 13538616079-11, where “11” is the index number, is an illustration of this. A different calibration and construction are used in injectors with an index of 10 and lower than those with an index of 11 or higher.

Does coding for BMW injectors exist?

Do I need BMW’s assistance to re-code if I replace one of my fuel injectors with the same model (part number 13537585261) that is currently on my car?

The newest fuel injector part number, which I discovered, is [FONT=’Calibri’,’sans-serif’].

13538616079, however vendors continue to provide the older model.

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After replacing an injector, I took it to an ind shop a few months later for other work and asked them to code the injector; however, they were unable to do so. I regularly drive the car and have taken it to two track days. I don’t notice any issues or a difference in how the car drives.

You require INPA! I downloaded it for free from a post, and I paid about $40 for a cable on eBay. Code injectors are only one of the many things it can accomplish. They must be coded so that the ECU is aware of the injector’s flow rate and voltage. If you’re lucky, you might be able to replace it with an injector that has comparable specifications (-0.1 or +0.1), and you wouldn’t necessarily need to code them. Each injector has slightly varying working characteristics and contains a unique piezo-electric element that regulates the fueling, necessitating the need for coding.

What would happen if I replaced it with a similar sort (same part number) and did not re-code it? Would it give an error code (i.e., turn on the SES light) or just have one cylinder run in less-than-ideal conditions (which I can live with)? Anybody with certainty? I’ll probably try to find out. Thanks.

It’s possible to run that one cylinder richer or leaner. You only get one oxygen sensor for three cylinders, so even a 3% error would be around half a point of AFR.

For instance, if your new injector had a lower flow rate, the ECU would still supply fuel to all three cylinders on that oxygen sensor, but that one would still be somewhat richer than the other two. In that one cylinder, there may be explosion or significant ignition correction. If the problem is severe enough, it could result in a CEL, misfires, etc.

How can you tell if your injectors need to be repaired?

When idling, a car often makes a quiet rumbling. It can indicate damaged fuel injectors if you notice that the sound has changed from being low to a rough and unpleasant noise. That happens when debris accumulates on the injector nozzles, reducing the fuel spray and atomization.

How can you tell if a gasoline injector is functioning properly?

  • Keep the engine running as you press the fuel injector end of a long metal screwdriver against it.
  • Place your ear on the screwdriver’s other end.
  • The injector is operating when there is a clicking sound.
  • Silence indicates that the injector may require cleaning or replacement.
  • Each injector should be subjected to this test again, and any inoperable injectors should be noted.

Can fuel injector cleaner be used in a BMW?

BMW manufactures its own fuel injector cleaning, which is available in both dealerships and maintenance facilities. The bottle form of the BMW fuel injector cleaner is interesting because it resembles the Chevron Techron cleaner, which is listed as number three on this list, quite a bit.

Because they are the same product, the bottles are identical, which explains why. Chevron Techron fuel injector cleaner was rebranded as BMW’s fuel system cleaner.

Since Chevron Techron, one of the best cleaners for BMW fuel injectors, uses the same product formula, the short answer is yes, BMW’s fuel injector cleaner actually works.

Can you clean BMW fuel injectors?

You only need to conduct a fast online search on “fuel injector cleaning” to know there are an absurd number of goods and services available. A professional ultrasonic cleaner and tester can cost over $1000, while simple pressure “no injector removal” tools can be purchased for as little as $100. The choice is made even more difficult by the various opinions and reviews that are dispersed over car forums. Many BMW and MINI home mechanics give up and simply install new fuel injectors to avoid having to clean them at all.

This is the main point. You can clean your BMW’s fuel injectors just as well as any professional service for less than $20 if you know how to remove them from the vehicle (which is very simple for most models). Yes, $20 is exactly what you read. If you are a home mechanic working on your own vehicle, there is absolutely no need to invest in an expensive professional fuel injector cleaning kit. These equipment are excellent for repair facilities that clean hundreds of injectors annually, but they are not cost-effective for do-it-yourselfers working on a single vehicle.

How much do BMW injector replacements cost?

The cost of replacing your fuel injectors will vary depending on the make and model of your car. Fuel injector replacement often ranges in price from $800 to $1500, depending on the repairs and labor charges.

The price of new fuel injector parts can range from $600-$1200. Expect to pay between $200 and $250 in labor costs for that.

Nevertheless, keep in mind that you aren’t always need to replace the fuel injector. Your mechanic might occasionally just suggest giving the fuel injection system a good cleaning.

How durable are BMW fuel injectors?

Your gas tank’s fuel must be transported to various parts of the engine where it will be burned and used to propel the vehicle. You should take very seriously the need to ensure that the fuel is delivered appropriately. Typically, lines will carry the fuel from the tank to the fuel injectors, where it will be distributed. The engine will have a separate fuel injector for each cylinder. A fine mist of fuel will be released, making it more simpler to use and burn during combustion. The fuel injector is utilized to supply the engine with the power it requires each time you start and drive your car.

Your car’s fuel injectors will normally last 50,000 to 100,000 miles. The type of gasoline used in the car and how frequently the various fuel filters are replaced both have a significant impact on how long the injector lasts. The fuel injectors will typically become gummed up if you use lower grade gas. There are several injectable therapies available that can aid in removing these kinds of deposits. Eventually, no amount of treatment will be able to restore the injectors to their original condition; they must be replaced. An engine might suffer greatly from a bad injector, which means it needs to be replaced right away in it to operate again.

Your engine would not function properly without the fuel injectors, which are an essential component. Given the harm it may do to your engine, the last thing you want to do is disregard the warning signs that the fuel injectors need to be replaced.