BMW 760Li motor fault lights

Fault analysis: the BMW 760Li chilly commence, jitter, and it is accompaniedX431 Diagun by an engine fault light-weight flashes, CID prompt transmission failure, in the event the re-start after a flameout every thing is normal, standard very hot motor vehicle.

The link the ISID performed diagnostic and found that there the multicylinder flame cylinder 2 injection system is shut, as well as the cylinder 6 injection unit is closed fault code. Examination testing software to auto diagnostic softwarecheck the high-pressure chilly begin, when there'll be some fluctuations, although not wonderful; checking the injector harness relationship is regular; high-pressure portion of the non-leakage, ignition coil and spark plug ordinary. This motor vehicle to interchange the cylinder 2 cylinder the 6 injector as well as high-pressure pump, and cleaning the inlet throttle, spark plug following the intake valve, take out the tuning values ??to match the injector, put in retest motor vehicle, ordinary watch The information had been also normal. To be parked for the night, the following morning located the vehicle from the cold when you can find jitter and accompanied via the lights of engine failure, just a little greater jitter, fault codes Instances cylinder 1, cylinder 4 cylinder 5 flameout.

Carefully assumed for a second then, this BMW V12 engine, a single-cylinder column 1 fault, 2 ordinary directions cylinder column. A very careful assessment of column two cylinder widespread low-pressure gas procedure, the cylinder column 2 normal towards the low-pressure fuel method together with other methods are properly shared; described multicylinder Misfiring position there is a diverse cylinder to cylinder column 1 and did not find any regulation, each and every cylinder ignition must be no dilemma, cylinder pressure, fuel injection and ignition coil wire, plug, and VANOS method is normal. Imagine if a cylinder ignition coil or destroyed spark plug, the cylinder will surely are actually documented fault code that auto diagnostic toolalso still left the gasoline provide system. Previously assessment on the low-pressure gas system is typical, then only the high-pressure fuel system.

High strain gasoline pumps and also the level of integration in the high-pressure pump manage valve replaced prior to the vehicle,auto code reader visible inspection from the high-pressure line and fuel rail connection at no traces of gas leaks, examine the significant force sensor, examine the large pressure worth credible. Blended using the cold start off problems, as well as fault mild blinking phenomenon, we conclude that there is a leak high-pressure procedure. The engine employs open up outwards piezoelectric injectors, the fuel from the soil for long-term, this injector a lot easier flameout just after injector Mifengbuyan led out to open the nozzle needle and valve Block exudation phenomenon, that's, we frequently express that the oil spill. To get a additional in depth, correct prognosis, we've got adopted one of the most primitive auto scanner method to verify. All injectors and large pressure oil rail eliminated, installed in accordance using the purchase in the injectors and high force gas rail, injector head and after that gently wipe the switch at an angle, and is also attached to every injector mat paper.

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