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2012 Hyundai Elantra Limited shuts off when reversing, no check engine light... need help

2012 Hyundai Elantra, Check engine light not on , car drives great and shuts off once in a while mainly on reverse… what could be the issue… throttle body was cleaned out… Map sensor was changed

Check the engine mounts and the air supply hose from the air filter to the throttle. Often a weak mount will allow the engine to swing and stretch the rubber hose especially at pleats where it can open and the resulting vacuum leak causes the engine to stall due to a lean mixture. And if the throttle body was recently cleaned there is the possibility that the supply hose was not properly installed and a weak mount could be causing a vacuum leak at the connection.

Any air that enters the throttle body that bypasses the air flow sensor will result in the ECU failing to send enough fuel to the engine.

Does your Elantra have a smart key? If it does, I’d look at the ignition switch. I have seen those fail intermittently and do exactly that.

No just a single key… Mechanic said something about the power steering code came up… he said it cause the car to shut off. He said he’s checking the wiring and already checked the ground