What happened to the throttle flameout of Honda Odyssey 03?

The reasons for the flameout of the fuel door of Honda Odyssey 03 of Pacific Auto Network are as follows: 1. When the throttle is dirty, the throttle opening of the car will be reduced or stuck, or even turned off; 2. The ignition coil is damaged and the coil is open or short-circuited; 3. The gasoline filter is too dirty; 4. The air flow meter is damaged; 5. When the car is running, the oil pump can't keep the oil pressure or the oil injection quantity is insufficient, which leads to flameout when accelerating.

This paper introduces the fault diagnosis and troubleshooting of Honda Odyssey commercial vehicle that can't stop immediately after restarting.

First, the fault phenomenon A Honda Odyssey commercial vehicle is equipped with an electronically controlled multi-point fuel injection four-cylinder engine. The car can't stop immediately after the engine suddenly turns off during driving, but it can stop after several starts.

Second, the analysis of the cause of the fault The normal operation of an automobile engine must have four elements: sufficient cylinder pressure; Combustible mixture with proper concentration; Sufficient ignition energy and correct ignition timing; Smooth exhaust.

Therefore, the engine flameout is generally one of the above four factors.

Third, fault diagnosis According to the fault cause analysis, first turn the ignition switch to the on position, and the fault light shows normal, that is, there is no fault code. At the same time, there is enough gasoline in the fuel tank, the sound of oil pump running can be heard when the ignition switch is turned on, and the oil pipe has obvious pressure, that is, the fuel system works normally.

Then the fire jump test was carried out. After inspection, it was found that the high-pressure fire was normal. The high-voltage line was reassembled and restarted, and the engine caught fire. Because of the irregularity of automobile fault, the engine has to idle for a long time, waiting for the fault to happen. When a fault occurs, check the engine immediately; Firstly, the ignition test of the engine was carried out, and it was found that there was no high-pressure fire in the high-voltage line when the engine started.

This car is an electronic ignition system with a distributor. The ignition power cord, the ignition control module, and the three sensors of camshaft position (TDC), crankshaft position (CKP) and first cylinder position identification (CYP) are all installed in the distributor. After analysis, it is considered that the fault can be recovered by itself, and there is no fault code, indicating that there is no fault in the engine computer, which should be the fault of the ignition system, especially the poor contact or unstable performance of some electrical components in the distributor.

First, check the distributor. The ignition switch is in the on position. The primary coil voltage of distributor is 12.5V, and the power supply voltage is normal. Then remove the distributor from the car, disassemble and test the distributor, remove the distributor cover, and put the ignition coil into the regular entrance.

(Photo/Text/Photo: Pacific Auto Network Q&A called Beast)