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故障现象一辆雷诺风景1代车,搭载4速自动变速器和2.0 L电控发动机,累计行程不到8万km,有时将发动机起动着机后,发动机会以2 000 r/min的转速持续高速运行,发动机故障灯点亮;汽车停驶时发动机的转速有时也会也莫名其妙地自动升到2000 r/min,发动机故障灯也随之点亮。但如果上述故障出现后将发动机熄火并重新起动,发动机工作时实际怠速却稍高于正常怠速,但是工作平稳,动力性良好。上述故障出现并无规律。
Trouble A Renault landscape 1 generation car, equipped with 4-speed automatic transmission and 2.0 L electric control engine, the cumulative trip of less than 80,000 km, and sometimes the engine starting machine, the engine will continue at 2 000 r / min speed high-speed Running, the engine fault lights lit; the engine speed when the car is parked sometimes also somehow automatically rose to 2000 r / min, the engine fault light will also light. However, if the above problems occur after the engine stalls and restarts, the actual engine idle speed is slightly higher than the normal idle speed, but the work is steady, good power. The above failure does not occur regularly.