Why can't Audi 2.7tt catch fire?

Hello, there are three common reasons for this situation. First of all, the battery voltage is insufficient, but this situation is accompanied by the weak operation of the starter. The second type is that the throttle has too much carbon deposit, or the idle motor has too much carbon deposit when pulling the throttle, which blocks the bypass airway. In this case, you can step on the accelerator while starting, so that you can get more air intake, so that you can start smoothly. This is verified. Third, the pressure of the oil pump is not enough to relieve the pressure of the fuel pipeline. You can turn the key on and off many times before starting. At this time, every time the key is turned on, the oil pump will be powered on for three seconds, and the oil pipe pressure will increase several times before starting. If the situation improves, it is necessary to measure the pressure of the oil pump and check the oil pump. You can also remove the intake pipe in front of the throttle and start it while spraying cleaning agent. If it goes well, it also means that there is something wrong with the oil pump. I hope my answer is helpful to you.