In Spark Ignition Direct Injection (SIDI) system applications, if a fuel injector fault DTC is set during a misfire event, the ECM will not re-enable the injector. If the misfire is not present, the fuel injector will remain enabled by the ECM. If the misfire is still present, the ECM will disable the fuel injector again repeating the process. The ECM will then re-enable the fuel injector and, after approximately 200 engine revolutions, will determine if the misfire is still present. Chevrolet Sonic Owners Manual: Engine Coolant Temperature Warning Light - Warning Lights, Gauges, and IndicatorsThis light comes on briefly while starting t. When the ECM detects that one or more specific cylinders are misfiring, the DTC for the respective misfiring cylinder will set, and up to 2 of the corresponding fuel injectors are disabled for a minimum of 30 s. The Diagnostic Trouble Codes (DTC) P0301 correspond to cylinders 1. The malfunction indicator lamp (MIL) will flash when the conditions for catalytic converter damage are present. At this point, it turns on the reduced engine power mode in order to keep the vehicle from running away from you. It’s usually displayed on your dashboard as a. When something goes wrong in this complex collection of components and sensors, it triggers this light. If the ECU isn’t getting the proper voltage response from the throttle body, it can’t be sure of how much it’ll really accelerate your Sonic from the gas pedal input. The Check Engine Light, also called the Malfunction Indicator Light (MIL) is a warning light (sometimes called a tell-tale) that indicates a malfunction with your vehicle (as detected by your car’s computerised engine-management system).
This is one of the most common reasons the reduced engine power light comes on. Check Engine Light : Chevrolet Sonic 1.4 L 138 hp Gas Check Engine Light On W hat is my CHECK ENGINE or SERVICE ENGINE SOON light All modern vehicles are equipped with an onboard computer diagnostic system (OBDII) that constantly monitors your vehicles major operating systems and mos. Labor costs are estimated between 88 and 111. By monitoring variations in the crankshaft rotation speed for each cylinder, the ECM can detect individual cylinder misfire events.Įxtreme cylinder misfire events can cause catalytic converter damage. Here are some of the most typical problems that can make your Sonic’s reduced engine power warning come on: Throttle Body. The average cost for a Chevrolet Sonic check engine light diagnosis & testing is between 88 and 111.
If the code came back as an engine timing issue there’s a chance it’s just the position sensors that monitor the camshaft and the crankshaft but it depends on the actual code. The Engine Control Module (ECM) uses information from the crankshaft position sensor and the camshaft position sensor to determine when an engine cylinder misfire is occurring. Engine Code Chevrolet SONIC VIN Nobody likes a check engine light popping up on their dash. Now a flashing check engine is signs of a engine damaging misfire, so it’s good that we got it scanned.