Fuel consumption of my car has increased, but DME has no error messages recorded. Smooth run. Detecting the localization of the defect: a) press the inlet valves of “good” and damaged cylinder one by one, to feel their movement; b) ask the assistant to start the engine for some seconds in the necessary moment; c) repeat a and b activities, slowly turning the eccentric shaft, till valves of any “good” cylinder start to open.

Rough run. In this situation: a) measure the compression (evaluate the valve closure, amount of burn etc. Of course, this solution has its limitations. Uneven running. Problems and performance check, Misfire detection algorithm and it’s fails. A Stratified charge doesn’t reduce fuel consumption?

Based on data of both hubs, mentioned before, DME calculates time, which is necessary for the engine to turn the eccentric shaft till exact position and corrects voltage, supplied, to the motor (creates adaptation map) in such way, that this turning is performed with most optimal (required) speed.

Nuances of NOx catalytic converter, How to use test module of the Lambda probes, Performance tests of CO catalytic converters, Performance tests of CO catalytic converters. Unfortunately, the existing generation of Valvetronic has no tools, which would allow changing (correct/equalize) movement of valves of each cylinder, if necessary. What to do? Stratified charge performance check, NOx sensor. Solution: re-adapt the engine. Rough run. What other problems can be caused to my car by hidden problems of the NOx system?

Typical situation (where the technological allowances of Valvetronic can be the cause) – permanent vibration in idle, in worst cases – possible misfires. Bimmerprofs offers help with online diagnostics for BMW E and F series customers. N46 series engine, with increased vibration in idle. This diagram can help if you print it out and store it in the vehicle for future reference, such as a breakdown situation. Where could be the problem? Desulphation of NOx catalytic converter using ISTA D/+, Cold engine and problems of injectors. More detailed information, how does the Valvetronic works, you can find in the aftersales materials of BMW AG, in this entry I will pay more attention, how to detect defects of Valvetronic. BMW N42B20 is a straight 4-cylinder engine that was produced in 2001 to replace M43B18, M43TU and M44B19 older versions. Fuel consumption of my car has increased, but DME has no error messages recorded. At this moment we have reached the sentence of this entry: how to detect if the Valvetronic is the cause of incorrect performance? Where could be the problem?

Desulphation of NOx catalytic converter using ISTA D/+.

In cases, when there are no error messages regarding Valvetronic, but the performance of the engine is “abnormal”, it’s much more complicated. If, for example, it’s registered, that for some moment the current was to low (0.0A) – definitely the motor or its connection (wires, connector) is defective (most probable cause – the contact of its brushes is lost), but, if the consumption of the current has been increased (for example, 25.0/30.0A) – the motor was, obviously, is mechanically braked or damaged.

Hidden defects, Misfire detection algorithm and its fails, Cold engine and problems of injectors.

BMW 116i – N13B16U0; BMW 118i – N13B16M0; With the N13 engine Turbo-Valvetronic Direct Injection (TVDI) technology is making its first appearance in BMW’s small 4-cylinder petrol engines. As already mentioned before, in idle the valves are opening for (average) only 0.4 .. 0.5 mm (min opening allowed is 0.18 mm)! Dealers attempt to “sketch” you for EUR 6000?

MSV systems. If you have doubts, that your choice to buy NOXEM, is correct, please, get in touch with Bimmerprofs via e-mail and include an exact description of your problem: screenshots of the INPA error message list, live data, etc.

INPA (ME9.2/MEV9; loader 2.04) displays mechanical efficiency, the sequence of cylinders: placement; increased value: decreased efficiency, status bits: none. When the valve(s), which is not opening, is detected (in circumstances, when the valves of “good” cylinders are already opening): for the valve, which is not opening – check with the screwdriver, if the corresponding Intermediate lever (position No.13 in the picture) performs the movement downwards – pressing the screwdriver to middle point of Roller cam follower (position No.12 in the picture), or, if possible, to HVA (position No.7 in the picture). Re-adapting of the automatic transmission, The problems of the injectors and misfires, Car with N57N engine and very low mileage, F10/11. Re: N43 engine - how bad is it?

Valvetronic changes (reduces) the opening of inlet valves and allows the inlet valves to perform as an individual throttle of each cylinder. The effect is similar to using the principle of Stratified charge in N43/N53 series engines. Stratified charge: disabled. It is understandable, that each mechanical hub has it’s manufacturing precision, wear. Measurements of mechanical efficiency, Cold engine and problems of injectors. Uneven running. Note: Problems with NOx system (NOx sensor and/or NOx catalytic converter) usually are the reason of following errors (E series; typical situation): Also, error messages regarding fuel trim usually appear. 1. If it’s not happening (or situation is getting even worse), obviously – the engine doesn’t equalize the mechanical efficiency of cylinders. B: control spot of the vertical movement of the Intermediate lever; Although this method don’t allows to detect the exact damaged element (if some exact component of the Valvetronic valve management has worn out – to identify it, you have to use the micrometer and compare the details one with other, evaluate the “play” between moving element; if the HVA has increased “play”, make sure, that the oil channels are not clogged), it allows to localize exact inlet valves, detect the approximate location of the problem and avoid the method “let’s change all HVA and all details of Valvetronic – it should help”. How to do that? a) motor (1) is a regular DC motor, connected with 2 pin connection. Testing the openings of the valves mechanically was detected, that the 1st inlet valve of cylinder No.4 doesn’t open in the situation when both valves of cylinder No.1 have significant movement. How does the performance of the engine differ with and without Valvetronic? Measurements of mechanical efficiency, MSV70/80, MSD80 and Lambda probes. 11787587129 (actual release) 11787587128.

The adaptation map allows quickly and accurately place the eccentric shaft in the necessary position (already foreseeing exact position – compensating technological allowances of the sensor itself and also the shaft). Part 2, Importance of the service procedures. To “ease” the situation, even more, these engines mostly (both – MSV: N52, and ME/MEV: N42/46) don’t report misfire counters via OBD mode 6, which means – diagnostic of ignition problems is quite complicated. c) the error messages regarding mechanical issues – are recorded if in the estimated time (including a certain reserve) the required position of the eccentric shaft is not achieved (or is not achieved at all).

Part 1.

29F4; 29F5: efficiency of CO converter below threshold, Bank 1/2.

Prince is the codename for a family of automobile straight-4 engines developed by PSA Peugeot Citroën and BMW.It is a compact engine family of 1.4–1.6 L in displacement and includes most modern features including gasoline direct injection, turbocharging, BMW VANOS variable valve timing..

N43/N53 operation modes.

The cost of NOXEM NOx emulator is lower than the cost of NOx sensor, the average lifetime of it – at least 300’000 km, and there is no need to replace the expensive NOx catalytic converter! Are there any ways to see the “health status” of the NOx system? To each BMW enthusiast, we offer Online diagnostics for BMW E series N43/N53 engines. BMW E90 engines have many fasteners that cannot be reused.

For example – disconnect the ignition coil of cylinder No.2 for a moment.

For example, if one cylinder will receive only 75% or necessary amount of air (previously mentioned difference of 0.2 mm for one valve), other cylinders will have to work with the lean fuel mixture.

Attention! MSV70/80, MSD80 and Lambda probes. INPA (MSV70; loader 1.35) displays mechanical efficiency, sequence if cylinders: placement; increased value: decreased efficiency, status bits: none. Typical situation in case of damage of the NOx sensor, Intake manifold. SHOP

Problems of air-tightness, Idle. A situation, when the appropriate error message regarding the performance of the Valvetronic is recorded, is comparatively simple.

HAYNES: BMW 3-Series 2008-2012 - ISBN: 978 0 85733 901 0, 3. Part 1, Why diagnostics, performed by dealer, fails, 30E9 nitric oxide catalytic converter, aging, 30EA nitric oxide catalytic converter, sulphurized, Problems and performance check of NOx sensor, Regeneration and desulfation of NOx catalytic converter, Online diagnostics. Rough run data will display the sequence of cylinders, displayed on the screen. runs unevenly in idle and/or on the go, in cold and/or hot condition; the fuel consumption is higher than it used to be.

Typical situation in case of damage of the NOx sensor, Intake manifold. The effect is similar to using the principle of Stratified charge in N43/N53 series engines. If by opening 0.4 mm mechanism of any valve “makes mistake” for only 0.2 mm (it’s not much, as we know), the valve will open for 2 (!!!)

What are the main differences between NOXEM emulator and ‘’usual’’ emulators? BMW engines have been equipped with VANOS (VAriable NOckenwellen Steuerung, German for variable valve timing) starting in 1993.The first application of VANOS was on the M50 6-cylinder engine in the 5 Series (E34).

BMW E63 LCI, E64 LCI, E90, E90 LCI, E91, E91 LCI, E92, E92 LCI, E93, E93 LCI with N53 series petrol engine. If the situation, when the engine evens the idle, is achieved, but Rough run data still are displaying that the balance is not reached (in case of balance – Rough run bar of each cylinder is close to 0.00), we can assume, that the correction of some cylinder has reached min/max range. Online diagnostics. BMW E60 LCI, E61 LCI with N53 and N43 series petrol engine. F10/11. This situation can have following causes: a) there are error messages regarding some other system of the engine – they have to be solved; b) there are no error messages.

If the error messages regarding NOx system. Applies to: 325i (2006-2013), 325Xi (2006-2013), 330i (2007-2013), 330xi (2006), 328i (2007-2013), 335i (2006-2013) Hidden defects, Misfire detection algorithm and its fails, Cold engine and problems of injectors. Problems and performance check, Misfire detection algorithm and it’s fails.

N42 Engine Diagram - bitofnews.com Read Book Bmw E46 N42 Engine Diagram Bmw E46 N42 Engine Diagram Yeah, reviewing a book bmw e46 n42 engine diagram could go to your near associates listings. Valvetronic has it’s “Achilles heel” – weak spot.

Part 1, Bosch’s latest-generation sensor is controlled and measured by ourselves developed analog control module which provides the highest accuracy of exhaust Lambda value. Special attention has to be paid to the HVA. Without Valvetronic – the air supply is managed with throttle opening, inlet valves in all cases are opening with maximum stroke (8 .. 10 mm). With Valvetronic – the throttle is fully opened, the amount of air is manages with the stroke of inlet valves (0.4 .. 10 mm).



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