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.

Customers' problem about the Fgtech galletto 2-master

Fgtech galletto 2-master is really a popular and new merchandise that use for car ECU programmer, it's got new technological innovation. There are lots of challenges about Fgtech of customers are subsequent, and if you're more recent about this, you may reach good support.

How am i able to use the usb take care of tool?
In the event you cannot see evidently the 2nd movie on our internet site. Attached you may locate the video clip on how to use usb repair tool, please test. Any dilemma, it is possible to sense cost-free to call us.


I would like to understand tips on how to insatll the software program, do I would like to carry out other issue like activation or else? Can it be easy to set up the computer software?
It's straightforward to put in the application.
1) duplicate the software package for your laptop
2) link the system, power (or vehicle)
3) set up the motive force, and operate the information "eobd2.exe".
Just do these techniques is ok, no want lively.

Hi, I invest in this FGTech Galletto about 2 thirty day period, now I have the subsequent query:
if my Galletto can provides the functionality of BDM? if certainly, do I want to pay for more money?
do I would like to return my Galletto for you to incorporate it?
Thank you in your order on our site. You do not need to return us to adds this operate. Given that the picture we write-up about the site, you are able to abide by instruction with the PDF to use it. As a result Your Galletto can guidance BDM much too. Should you has issue from the course of action, make sure you get in touch with us in time, I'll get in touch with our engineer to carry out extended length communication that will help you.

howdy, I need to find out if it might help the entire purpose? such as OBD or else, and what about the update? do I need to pay extra money?
Thank you in your attention-grabbing, Our FGTech Galletto 2-master can guidance OBD and BDM mode. If the new version will come out, we're going to release it on our website. And you'll update your Galletto at no cost.

There's a vedio with regards to the FG/Tech Galletto 2-Master EOBD2 BDM and software challenge: http://www.youtube.com/watch?v=XvNp3TSXvv0

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.

http://blogs.rediff.com/obd2expresscouk/2013/02/21/tips-for-winter-car-care/

Geely pride to step on the accelerator pedal reaction

An assembly of the 376 engine, the M1 5.4 EFI system Geely pride sedan. The car diagnostic tool uneven exhaust sound of the car exhaust pipe, driving the process occasionally step on the accelerator pedal, the engine reaction (feel the speed increase is not on), and slow acceleration, the exhaust gas in the oil generation Sauvignon and irritation of the eyes, and the exhaust gas . Pick-up: First, extract the fault code, there are two fault codes to explain the mixed gas of adaptive and oxygen sensor control.
Clear fault codes, the car, the normal system, with a timing gun measure the ignition timing, earlier, the ignition timing is adjusted to within the normal range, the effect is obvious.
Read the obd2 scan tool data stream, and found the engine load is too large, the fuel injection pulse width of 1.9-2.1 ms. Measuring the intake manifold vacuum with a vacuum gun, vacuum gauge pointer swing violently around 15 inHg (under normal circumstances, should be 20-21 inHg), is significantly lower.
The suspected gas distribution system, measurement of cylinder pressure, three cylinders are about 8kgf/cm2.
Check the valve clearance, found significantly smaller, and intake valve clearance less than 0.1mm. Adjusting the inlet valve clearance to 25 mm, and an exhaust valve to 0 30mm, and then measuring the cylinder pressure to rise to 9kgf/cm2, re-start the car, rose 20inHg intake manifold vacuum, the data stream is measured in the engine load becomes 1.5-1. 6ms.
Test, driving people to reflect accelerated more powerful than ever before, "step on the accelerator pedal response is not, and just slightly larger engine noise.

Later, they encountered a few cases of a similar failure, the majority reflect accelerate the slow, check the valve clearance is too small, by adjusting the valve clearance, engine acceleration is more powerful than ever before to accelerate the slow failure phenomenon also excluded.

Summary: As the valve gap is too small, so that the intake valve with gas phase offset, causing the cylinder underinflated, the cylinder pressure is reduced, thereby affecting the speed of the combustion cylinder mixture, so that the combustion speed becomes slower, affecting the intake pipe of the vacuum pressure, intake manifold vacuum pressure and the intake air pressure sensor output signal voltage increases, the rise of the signal voltage equivalent to the obd2 software engine load is increased, so the output from the computer wider injection pulse, causing the exhaust gas is too heavy, high fuel consumption, acceleration slow series of fault phenomena, in this case, the interaction between the typical mechanical and electronic control system failure, will appear on all electronically controlled fuel injection engine intake pressure measurement into the air, and therefore have a considerable universality and typical, and the mechanic are particularly accustomed to use the handle to adjust valve clearance does not actually have a feeler gauge, it is difficult to adjust to the standard range, the carburetor engine valve clearance requirements and not very strict, slightly smaller valve clearance and there is no obvious fault phenomenon, but electronically controlled fuel obd2 connector injection engine is different, so the correct adjustment of valve clearance using feeler gauge to adjust to the attention of the majority of colleagues remind .

Citroen C5 parking aid technique won't work

A mileage about 84800km, configure 3.0L engine, automated transmission Citroen C5 sedan. Reflects the owner: car parking assist method parking distance detection perform doesn't get the job done, the distance measurement is not expected parking needs.
Pick-up just after car diagnostic tool the very first problem reflected through the user for confirmation. Commence the automobile, turn indicator is activated; parking place measurement switch is pressed.
Vehicle pace is under 20krn / h, driving by way of the parking room involving two vehicles uncovered the blend meter parking distance detection detection benefits (under typical situations wouldn't display effectively, then the blend meter will present the test success really should not be Parking, parking, parking 3 outcomes cautiously, determined by the size of your measured stopping distance), distance detection function for parking that does exist between the title.
First diagnostic PROXIA3 failed read operation of the parking help program of the vehicle control unit, the presence of any fault information is just not read inside the manage unit of your parking assist method. Then related parameter measurement operation, the primary parameters on the system will probably be compared value and the standard parameter while in the usual situations, no abnormality was found. Up coming, the model amount of the parking help procedure on the handle unit to get go through, as well as the most current version comparison, meet the demands, and also to exclude the chance of failure due to of software versions ineffective Division.
Control unit and its foot parking help procedure standing check out. Its very first CAN pin voltage measurements (stars the ignition switch to turn on and off the 2 states), the measurement consequence is 0V plus the battery voltage, respectively, to meet the prerequisites. Up coming, verify the state in the Intelligent Management F14 fuse box, clear away visual inspection if it's blown, the end result is ordinary. Examine SH fuse state, the outcome is normal. State from the engine compartment fuse box to the power provide line the MF8 fuse the manage unit, along with the result is regular. Checks the state with the management unit CAN H (the connector 18VNR5 feet) and CAN-L line (the connector 18VNR 14 feet), the ignition switch is opened and closed the measured voltage worth during the two circumstances, the measurement benefits together with the regular to the comparison voltage value, the end result is ordinary, indicating the CAN network cable isn't problematic, regardless of the fault with cable. Following months continued measure the state handle the unit Datie feet (connectors 18V NR10 1 foot), measured using a multimeter voltage worth (factors ignition switch is turned on and off two states), the measurement effects are 0V to meet the requirements Then, measuring the resistance value concerning the another this Datie feet and physique get the job done effectively Datie stage, the measurement result is under 1 ohm, and that this Datie level status is not really problematic. The replacement of a new parking assist program management unit assembly operation, discovered fault phenomenon there, nothing at all to indicate that the the fault generation parking assist system manage unit and its operating feet.
Parking distance detection sensor (electrical No. 7516,7517) and digiprog 3 its line standing verify. The connector the place the line of those two sensors 3: 7539,7524 C, 7523C, 7538,7524 F, 7523F-off verify, the consequence is not really problematic. Subsequent, measure a voltage value of the 6 lines (sub ignition switch to open and shut the two states), common worth comparison of your measurement effects and underneath regular circumstances, no abnormality was identified. The replacement of these sensors, then run system, the fault does not disappear, that generation of failure has practically nothing to do with parking distance detection sensor and circuit.
Next, the combination of instruments and their operating line status test. Blend meter handle unit with diagnostic fault study operation, and didn't get any fault data exists to blend meter functioning feet parallel leads with all the the focused the C5 model portfolio of instrument diagnostics harness bonding diagnosis junction box, then that has a multimeter measurement to the initial electrical voltage worth with the foot (the ignition switch to open and shut the 2 states), the measurement effects and under regular circumstances, the regular value comparison, and not problematic. Next, a voltage value measuring Datie feet (ignition switch to open and shut the two situations), as well as measurement final results are 0V, and measuring the resistance value concerning the the other this Datie level and body doing work thoroughly Datie stage, the measurement consequence is under 1 ohm effects that this Datie level is normal. F10 over the electrical power provide line to your instrument cluster, SH fuse (fuse) intelligent management box about the standing check out, will they eliminate the visual inspection if it really is blown, measured having a multimeter to get turned on and off, the outcomes display that the two a fuse will not be the issue. Continue its engine fuse box MFS fuse to the electrical power provide line standing test, the result is just not problematic. Finally, replace it by using a new instrument cluster assembly, then related operations, found fault phenomenon also exists. The over operation demonstrate the generation from the failure has practically nothing to do with all the blend of instruments and their functioning line.
Sterile mention no matter if intelligent management box parking distance detection function to normal settings to examine (if this characteristic is not typical activation, the parking aid handle unit can not manage sensor standard detection). Utilize the diagnostic PROXIA3 into intelligent handle box fault read through operations, with no any parking distance detection failure exists, the following user profile read through, parking distance detection perform setting status is ordinarily open 's. The over operation settings for this function is no trouble, the generation from the fault isn't attributable to parking distance detection perform is not a typical set.
Combination switch flip signal switch standing examine (should the parking distance detection management unit does not obtain the turn signal switch to your left, turn ideal and hit the subsequent, it doesn't control the corresponding side from the parking distance Discovery measured The sensor work). Turn signal switch toward the left and proper sides battle, uncovered normal to your left, moving towards the correct, left and appropriate turn signal on the instrument cluster display work thoroughly, the front of the vehicle, flip signal in 6 working properly. The above test results demonstrate the generation of failure has absolutely nothing to do using the state flip signal switch.
Dashboard parking distance detection perform switch and its operating line status check out (If this switch signal just isn't obtained parking distance detection management unit, it doesn't handle sensor). 1st that has a multimeter to measure the line wherever this switch off, the end result is not a problem. Up coming, measure the resistance the common resistance contrast measurement effects under normal conditions, absolutely nothing abnormal, proceed this switch removed, measuring its inner on-off located open circuit condition. Next, change a switch assembly, and then the operation on the parking distance detection function uncovered fault disappears.
Fault Summary VCM Metal Box IDS V82: Following meticulously dismantling the evaluation of fault that the generation of the fault is because of the parking distance detection function switch that exist in the mechanical damage brought about inner line break this case, when press this switch, Parking distance detection control unit can not acquire the signal of this switch is opened, this time parking distance the probing handle unit can not adequately control the the parking distance detection sensor send ultrasonic typically have to measure the room between the linked objects (parking position) distance detection.