Review Of 1997 Toyota Corolla Dx Check Engine Light Maf Sensor References. A day later the check engine light came on and the engine (1.8l) started to idle rough. Web a sputtering engine can indicate a number of problems.

I was going to clean the maf sensor but, found that the 97's didn't have one. Once the electrical connector is disconnected, you can use a multimeter to test the voltage output of the sensor. If the maf sensor has gone bad, it’ll trigger the check engine light and provide an obdii trouble code.