What is the reason for no high-voltage electricity in the Wuling Zhiguang ignition?
2 Answers
This situation occurs due to a malfunction in the car's ignition system transformer. Here is the relevant introduction about the car ignition system: 1. Introduction: The car ignition system is designed to ensure the proper operation of a spark-ignition engine. It supplies the spark plugs with high-energy high-voltage electricity (approximately 15,000 to 30,000V) in the correct firing order for each cylinder, enabling the spark plugs to generate a strong enough spark to ignite the combustible mixture. 2. Requirements: It must generate a voltage sufficient to break down the spark plug gap. The voltage required to break down the spark plug electrodes and produce a spark is called the breakdown voltage. The secondary voltage generated by the ignition system must be higher than the breakdown voltage to ensure the spark plug fires.
I also drive a Wuling Sunshine and encountered a similar issue - no high-voltage spark during ignition. After inspection, I found the ignition coil was faulty. The ignition system in this vehicle is somewhat fragile, especially in older models. The coil tends to develop internal short circuits due to poor heat dissipation or prolonged use. Additionally, excessive carbon buildup on spark plugs can affect high-voltage generation. I've also noticed that insufficient battery power or unstable starter voltage can exacerbate the problem. My suggestion is to troubleshoot step by step: First, use a multimeter to check if the coil outputs voltage, then remove the spark plugs to inspect for carbon traces. There's an ignition system fuse in the fuse box - check if it's blown. If all these seem fine, consider a faulty crankshaft position sensor, as incorrect signals may prevent the ECU from sending high-voltage commands. It's best to visit a specialized repair shop for professional diagnosis with a scanner - safety first, avoid DIY wiring disassembly.
