The five-cylinder Audi uses a shockless Hall-type electronic ignition system. The working principle of this system is basically the same as the regular Santana. If you experience misfires, you must first determine if it is a weak one. -voltage or high voltage system failure.
1. Check the power supply and the signal from the sensor installed inside the dispenser. On both sides of the plug are the positive and negative poles of the power supply, and in the middle is the signal. If the power supply is normal, the middle signal line should have a pulse signal when the motor is running.
2. Once the above is normal, mainly check the ignition module and ignition coil. When checking the ignition coil, first check to see if the positive power supply to the ignition coil primary is supplied with 12 volts, and when rotating the mmotor, the negative pole of the primary should exhibit intermittent voltage fluctuations. If fluctuations occur, this proves that the ignition module is normal. Otherwise, the ignition module is damaged. At this point, disconnect the main high voltage wire. If there is no spark from the high voltage ignition coil, it means the ignition coil is damaged. If there is sparking after disconnecting the main high voltage wire, there will be no sparking after plugging it in. The elimination method can be used to eliminate the distributor cover, distributor head, bypass cylinder high voltage line and spark plug one by one after the main high voltage line.
The problem of ignition failure usually focuses on the two major aspects of the ignition system and the fuel system
If you confirm that it there is no high voltage electricityn, this There must be a problem in the ignition system
You can ask them to carefully check all aspects of the ignition system
The order is as follows : spark plug-high voltage line-distributor-high -voltage package-battery
Be sure to exclude them one by one, and in addition, pay attention to whether the grounding at the end is good.
Spark plugs - high voltage wires - distributors - high voltage packs - batteries, everything is fine! ! ! ! So there's no high voltage electricity, right?
Is this a chip problem?
I don't know how you detect "candle-high voltage line-distributor-high voltage battery pack". I suggest you change the “spark plug-high voltage line-distributor-” assembly. high voltage pack- » way to one. Try using a normal motor of the same model to see if it can work normally. If it can work, that meansthere is a problem with the chip.
The “chip” refers to the ECU, which is a problem with the electronic program.
If you find out that everything is normal, then I won't break it. . . .
What about the generator? Is the electricity production voltage sufficient?
In fact, the detector is not completely reliable, and it is safer to detect some details manually (personal opinion)