The super car ECU programmer mileage 100000km, equipped with AWL engine Shanghai Passat 1.8T sedan. Entrepreneurs reflect the vehicle in normal driving, the motor abruptly stalled. Failure to particular regulations, flameout consecutive commence right after many failed, about 30min and then start out the motor, you can get started correctly, in addition to a solution to plant failure.
For the failure in the electronically managed engine cannot get started, initially to produce utilization of the car detector test, coupled with aspects from the engine to work appropriately analyzed. "Suddenly switch off to search out the circuit, gradually flameout come across oil line upkeep encounter, motor on the usual procedure in the should have ample ignition electricity, fair air-fuel ratio, ignition timing and valve timing accurate. Also, verify the anti-theft process is in influence, anti-theft procedure operates, motor start out signals, but can not start.
First with KT600 detector diagnostic to ascertain the anti-theft system does not do the job. Then enter the engine process to read through the fault codes, three fault codes, respectively, to the fault code 17939 "camshaft timing adjustment disconnect standing is sporadic; fault code 17953" throttle manage malfunction, the state to the occasional " ; fault code 17925 main relay the J271 failure, condition sporadic. A few fault codes are sporadic, so apparent fault codes, connect the detector commissioning validation fault with the car or truck, driving around 1h motor instantly stalled, repeated 3 fault codes. Fault code accessibility upkeep information, coupled with the primary relay J271 circuit diagram evaluation, bring about motor flameout primary reason for the fault code 17925.
The motor regulate CMD CAN Flasher V1251 unit should be to command the operate of J271 throughout the control J271 eighty five feet Datie,. Main relay J271 four cylinders in the motor also controls the impartial energy offer on the ignition coil as well as camshaft timing on the electricity regulating valve. J271 within the motor compartment shielding, reference numeral thirty (Figure 1) determined by the servicing info to uncover. Any time a fault happens, transform the ignition switch, J271 action, ignition coil around the 1st foot calculated having a multimeter, voltage 4V, the voltage is simply too minimal; then measure the the J271 87 toes voltage is 4V, No. thirty ft 12V, regular; quite Naturally, the No. 87 feet and thirty toes are usually not wholly turned on. Unplug J271, open up relay shroud, identified the 30th the foot solder ablation (see Determine 2). The quick wiring connections J271 line of thirty toes with 87 foot line, start the engine, a sleek begin.
Replace the J271 motor is clean commence measuring the ignition coil No.1 ft voltage is 12V, commissioning, fault elimination.
Maintenance Summary
Later right after consulting learned how the probability of this failure where designs. Intermittent failure when ablation at the power of labor to get a period of time soon after the ablation position temperature increased, causing improved make contact with resistance, and fireplace ignition coil does not operate, the motor will stall, waiting for quite a while immediately after ablation place temperature is reduced, the engine may even have the capacity to operate appropriately.
The most critical car ECU programmer aspect of your fault in this case presented a fault phenomena connected together with the several fault details for the identical time, this example will not be unheard of from the true automobile breakdown routine maintenance. For this type of failure, we need to be the foundation of crystal clear failure phenomenon, fault details acquired to carry out in-depth, in depth investigation: the 1 hand, the evaluation which fault data can directly attributable to your failure phenomenon, which fault details and fault phenomenon there isn't any causal romance from which identifies one of the most possible induce in the malfunction; Alternatively, the analysis in the romantic relationship between the fault data to obtain a vital investigation of who's influenced individuals, who're impacted by, generally The impression is definitely the main reason leading to the failure. From the assessment in the two, when the conclusions with the assessment stage on the same fault data, then the knowledge would be the authentic trigger on the malfunction.
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