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Q:

changed crank shaft sensor and the MA sensor yesterday due to car stalling out on 2002 Mercedes-Benz C240

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
after replacing the car started right up. The next day the check engine light came on along with stalling and feeling like it was going to stall on the highway...codes read the sensors replaced yesterday are the problem...help...connectors or wires or plugs that may be the cause?? This car blows lately!!
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The codes are usually correct but in many cases only tell you where to start diagnosing the problem. A professional grade scan tool lets you look at sensor values to see if they are in range or out of range before replacing the sensor. Professional grade sensor also allows you to look at freeze frame data when the fault occurs and Mode 6 information which gives a better chance of fixing the problem right the first time.