The Volkswagen Bora accelerated less trouble

The Volkswagen Bora auto diagnosis mileage of about 90,000 km, equipped with 01M automatic transmission 2009 Volkswagen Bora cars. Users reflect the car accelerated weakness. Pick-up: the maintenance staff commissioning, and found the car to accelerate slow engine speed increases to more than 3 000 r / min, the transmission to shift into 3 block. This is obviously not normal.

First, check obd2 scanner the engine torque control situation. Through the stall test and found that only 1 700 r / min, the stall speed of the engine is significantly lower. Detecting an engine control unit, the fault code. But check fuel correction amount, partial concentration of the mixture in the fuel injection correction. Engine idling view 01-08-005 set of data, air flow rate of 4.2 g / s, calculate the air flow parameters, flow rate of only 2.3 g / s. Since the air flowmeter measurement of the intake airflow in high error exists, so when the engine obd2 scan tool output torque is increased, the fuel injection quantity is beyond the correction range, so that the mixture is too thick and cause engine overload. In the case of high rate of engine load, the transmission had to be postponed shift, this is a trial run to see the failure phenomenon.

Troubleshooting: Replacing obd2 code reader the air flow meter, troubleshooting.

Engine ignition system common failures of judgment and exclusion

Now introduced obd2 bluetooth the common faults of judgment and exclusion of non-contact ignition system as an example.

Engine ignition system

1. Fault classification

Ignition system fault according to their position in the ignition system can be divided into two kinds: low-voltage circuit failure and the failure of the high voltage circuit.

(1) obd2 scanner low-voltage circuit common faults:

Lack of battery save electricity; poor cable connection or confusion; battery Datie the bad; distributor or Hall sensor is damaged; ignition switch loss

Bad or poor wiring; the transistor ignition control unit is damaged or poor wiring. Most of the low voltage circuit fault diagnosis method using the ammeter or electricity

Pressure table-by-line examination to rule out the point of failure.

(2) obd2 scan tool high-voltage circuit common fault:

Off high-voltage or leakage; distributor cap rupture breakdown; distributor distributor rotor ablation rupture breakdown; spark plug electrode gap is too large or too

Small; excessive spark plug fouling; spark plug insulators damage; damaged or wiring off the ignition coil.

Most of the high-voltage circuit failure using a high-pressure fire test method, unplug the electrical center of high-voltage lines is about to be a cylinder of high-voltage lines, and placed the head distance cylinder 3-6mm at starting the engine test fire, sparks and sparks strong ignition system is working properly .

Ignition system does not work

(1) obd2 code reader Symptom: turn the ignition switch to start the engine, the engine has no reaction; high-pressure test fire, no spark high-voltage lines.

(2) Analysis and Diagnosis

The modern the Ruifeng machine oil lamps abnormal alarm

A modern Refine MPV, traveling 3000 kilometers, the sudden appearance of the oil warning light shiny phenomenon idle.

Troubleshooting: Check obd2 scan tool the dipstick, oil within the calibration range. Start the engine test, a long time not seen the machine oil lamps lit, try adding kicks oil, machine oil lamp in the idle case just flash a few, high-speed operation everything is normal. Loading measuring oil pressure gauge, oil pressure in the engine at first start after 130 kPa, belongs to the range of normal pressure until the operation after a while to see the oil pressure slowly drops to 80 kPa, throttle engine speed of 3000 rpm / minute, the oil pressure gauge indicates 420 kPa. From the test situation normal, fine expect to feel a certain attraction demolition oil pressure sensor, and the howling of the intake, feel the engine body of missing air cover, so add oil open again observed, the oil pressure gauge what l play a normal, it seems that the fault reason on this. So obd2 code reader the check valve chamber cover the drain hose connecting the intake manifold (located after the throttle valve), wherein the check valve and the pipes are normal, when the intake hose leading to the engine body in the check the crankcase ventilation system (located throttle before) discovered when the hose in the engine intake manifold at the connection has been blocked by the excess of the rubber, the through hole is very small.

Troubleshooting: clear the obd2 scanner crankcase ventilation system intake hose leading to the engine block, the engine oil pressure is normal, commissioning and troubleshooting.

Fault analysis: poor intake due to the engine crankcase ventilation system, the engine idle speed when a higher degree of vacuum in intake manifold suction, the air is sucked out of the machine body of the engine, while the access to the machine body of the engine air intake less cause the engine the body negative pressure, oil pump, pump oil resistance is increased, so that the oil pressure is reduced. When the high-speed operation of the engine, since the throttle valve is opened, the degree of vacuum within the intake manifold becomes small, the suction decreases, the pressure did not affect on the body of the engine machine, so the high engine speed detected when auto diagnosis the lubricating oil pressure in the normal range.

Note while in the Car restore and Car diagnostic tool

Minor repairs yourself
A different air filter, MaxiScan EU702 security bulb this reside completely not necessary within the 4S store light queued to get to wait an hour, and had to catch a higher level of functioning hours, costs, have that time Dounong in excess of. So like principal auto know-how, is prolonged overdue to their tuition. Are loss solutions like brake light bulbs such parts, even new automobiles inevitably damaged, so long as you look carefully the car or truck taillights straightforward construction, you may head to the street to shell out five dollars to purchase a light bulb, and oneself to the vehicle to change on, so that not just eliminate the ache of queuing, and a rise on the car in between the emotional exchange, is usually described as killing two birds with one particular stone.

Upkeep repair center
Standard relatives car every single 5,000 km oil, filter replacement should be carried out, if the bottom for the 4S store to replace, time-consuming, laborious, highly-priced. So for such live no technical articles for the local community could be assured brief restore store to consider care of. Store supply oil and also other raw elements is not assured that you simply could should the 4S store to order a bottle of oil, then go get as much as 10 minutes to resolve the situation immediately repair store, then most will pay out twenty bucks labor charge, but in addition no cost chassis, tires repairman test, why not get it done.

3 incurable disorders towards the 4S shop totally free diagnosis MaxiDiag Elite MD802
The cars are now outfitted with sophisticated electronic techniques and precision mechanical parts, while in the case of the more substantial failure is certainly not street vendors or Auto City can remedy. Would like to repair the complex structure of a present day car or truck, in addition to a wealthy qualified working experience, is extra essential to depend upon extremely advanced electronic gear auxiliary overhaul, that is what individuals retailers never have, then you definately ought to feel brand stores strength. 4S retailers as a way to draw prospects now basically fault detection are free, which means you can run quite a few 4S outlets to detect the root result in of your failure, in case the solution offered by several retailers, it fundamentally can figure out in which the issue is . But then you also usually do not hurry to go out and restore, in the event the fix approach isn't as well difficult, you'll be able to in the 4S store to order the add-ons, and then for the car elements city to search out a mechanic to replace, Obviously, if your electronic gadget is concerned, it can be very best to perform The Province that dollars.

4. Overhaul essential professionals
The motor vehicle is usually a precision machine superficial glitches could also count on these "guerrillas" If it encounters a substantial fault that you should head to a professional 4S store. My point is involved with the upkeep of your engine, transmission, chassis, pc elements, will have to 4S shop repair. Cite an instance that I experienced it, a friend of Polaris, had just engine somewhat burning oil, the outcomes just after a tiny restore store servicing could not beat the auto, high-speed abnormal sound quite a few inexplicable problems have appeared, the final one particular good friends really need to re-spend dollars to extensively 4S shop servicing outcomes inside and outside an operator also costing a huge number of dollars. So, right here we will have to also remind you, the failure of essential parts, be sure to choose the 4S store restore.

Needless to blindly stick to the Genuine Parts Autel MaxiDAS DS708
Jetta, for example, the outer plastic box air filter intake head segment within the 4S shop purchase to 200 yuan, whilst the Auto Components City, 80 dollars a deputy plant components are filling the streets, according to my visual high quality is not really bad . So I didn't hesitate to select deputy plant elements, Automobile Elements City has presently invested in excess of two many years, just isn't the challenge. In fact, the election, deputy plant elements is additionally principle: 1. This kind of as plastic components, even when not as superior as the unique factory Vice sturdy, that doesn't make your car instantly broke down, shell out 80 bucks pulls a large deal; 2. Plastic air filter box doesn't belong to the core institutions with the auto, if there is a problem that does not imply induce permanent injury of the automobile; 3. These essential elements this kind of as brake pads, tubing, belts will under no circumstances Vice plants, simply because the good quality in the deputy factory add-ons, soon after all, will not be reputable, if these essential components of the challenge, you then is usually would be the province slightly cash suffer an awesome deal.

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