How do you code injectors on a BMW N54?


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  1. Step 1: Replace the Injectors.
  2. Step 2: Plug the MX808 into the OBD2 Port.
  3. Step 3: Select “Service”
  4. Step 4: Select “Injector” from the service menu option list.
  5. Step 5: Select Vehicle Make.
  6. Step 6: Read the Vehicle VIN.
  7. Step 7: Verify Vehicle Information on the Next Table.

How do I identify my BMW injectors?

The index number can be found on the head of the injector after the BMW part number. An example of this is 13538616079-11 where “11” is the index number. Injectors with index 10 and lower have a different calibration and construction than injectors with an index of 11 or higher.

How do I find my injector number?

The code is usually located on the injector head. DENSO Common Rail injectors – generally all require coding, although some very early versions may not. A typical code length is 16-24 alphanumeric characters depending on the vehicle make. The code is usually found on the injector connector.

Who makes N54 injectors?

For over thirty years, GB Remanufacturing has been rebuilding fuel injectors, and are now the first company to remanufacture BMW’s Index 12 injectors for the N54, and we are the only company to make these available to you.

What CC are N54 injectors?

N54/N55 Multi-Port Injection Kit – 750cc.

Are all BMW injectors the same?

The only difference between these injectors at the end of the day is the retail price. The TSB is specific for the S63 V8 which is the highest stock output engine that uses this particular type of direct fuel injection system. Remember that the BMW N54, N63, and S63 engine in ETK use the same fuel injector.

Is there a fuel injector code?

The most common fault codes associated with a clogged fuel injector are P0171 and P0174, which indicates the engine controller is seeing a lean condition. It is also possible to see fault codes for a rich condition if the injector is leaking or not atomizing correctly.

How many digits are the injector ID code?

The code has 30 characters printed on top of the injector. If the correction code programmed in the engine DCU is incorrect for the injector, the engine may stall and run very badly at idle. The engine may also break down and have a reduced service life.

How do I know what size injectors I need?

The simple formula is horsepower times BSFC โ€“ or 500 horsepower x 0.5 = 250 lbs/hr of fuel. This is the amount of fuel we need to supply to the engine to achieve 500 hp. If we divide that volume by eight injectors (for a V8 engine), this comes to 31.25 lbs/hr necessary to feed the engine.

Do BMW fuel injectors need coding?

It’s called calibrating the injectors and yea it mandatory. Each injector is different and it would be cheaper if you wrote down the 6 digits so the shop (whomever you choose) doesn’t have to pull the engine cover to get them. The code is based on the piezo crystals inside it.

How long do N54 injectors last?

The N54 fuel injectors are warrantied for 10 year or 120,000 miles. If you are under warranty, BMW will try to only replace the fuel injector that is leaking. MAKE THEM REPLACE ALL! If you have one injector leaking, it is likely more will follow soon after.

How do you code N54 injectors with INPA?

YouTube video

What is port injection N54?

Port injection runs off the low-pressure fuel pump. Many N54’s start with LPFP upgrades on stock turbos to support more power and higher E85 mixes. This often looks something like a single Walbro 450 or Walbro 525 LPFP. Single pumps usually support about 450-550whp on 100% E85 with port injection.

Does the N54 have direct injection?

The N54 was produced alongside the naturally aspirated BMW N53 engine; both engines have direct injection, double-VANOS (variable valve timing), an open-deck engine block and an electric water pump.

Do you need port injection N54?

N54 Stage 4 LPFP Upgrade Stage 4 LPFP kits are similar to stage 3, however it requires the use of port injection. The dual pump set up is the same as with the stage 3 kit.

Is N54 direct injection?

BMW’s N54 engine, introduced in the 2007 335i, was the first engine to feature direct injection and turbocharging. Looking at the current BMW line-up, all gasoline engines available in the US are now turbocharged and direct injected.

What brand are BMW injectors?

The Bosch OE replacements are the same as the BMW injectors.

Are N53 and N54 injectors the same?

According to RealOEM, injectors for the N54 are a completely different part number from the N53, so not compatible… Yep.

Do fuel injectors have an order?

There is a cylinder order, firing order and injectors order. The injectors order matches to either cylinder order or firing order, depending on the type of engine and/or type of PCM.

What happens if I don’t code my injectors?

Non start โ€“ In newer systems if you do not code in the injectors the vehicle will not start. Poor / lumpy running โ€“ as the injectors are not coded, the ECU will carry on fuelling as if the previous injector was still present, which can cause poor performance.

Will a bad fuel injector throw a code?

If you do have a bad fuel injector the most likely symptom you will notice is a rough idle and an engine code for a misfire.

Do new injectors need to be programmed?

When fitting new injectors, you need to code them to signal the ECU to make appropriate calculations that will allow the engine to run the optimum performance compatible with the new injectors.

What do the numbers on injectors mean?

Fuel Injectors are sized by their flow rate. Flow rate is a measurement of how much fuel can be delivered over time. It is listed in pounds per hour (lbs./hr.) or cubic centimeters per minute (cc/min.).

What can I use to code injectors?

Injector programming can be carried out with high level Diagnostic Scan Tools such as G-Scan or Autocom ICON. Care must be taken when reading the identification code stamped on the injector to ensure the correct number is entered into the ECU for the corresponding cylinder.

Do second hand injectors need coding?

You will need to code injectors to ECU , on top of the injector will be some numbers and letters .

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