Hi and thanks for using 2CarPros.
Charging is regulated via the ECM; however, if you hit the power supply to it, that shouldn't have damaged the ECM unless you shorted the supply to one of the ECM terminals.
With that being said, what you are describing sounds like a typical crankshaft position sensor problem. Take a look through this link:
https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor
The easiest way to test one is with a live data scanner. Basically, if it stalls and doesn't restart right away, you won't have an RPM signal. Also, it will cause the ignition to lose spark.
Here is a link that shows in general how a sensor is replaced:
https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement
Here are the directions for replacement specific to your vehicle. The attached pictures correlate with these directions.
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Crankshaft Position Sensor Location
See pic 1
The crankshaft position sensor is located on the right- lower side of the cylinder block, forward of the right engine mount, just above the oil pan rail.
REMOVAL
1. Raise and support vehicle.
2. Disconnect sensor pigtail harness from main engine wiring harness.
Sensor Removal/Installation
3. Remove sensor mounting bolt.
4. Cut plastic tie strap securing sensor pigtail harness to side of engine block.
5. Carefully pry sensor from cylinder block in a rocking action with two small screwdrivers.
6. Remove sensor from vehicle.
Sensor O-ring
7. Check condition of sensor O-ring.
INSTALLATION
1. Apply a small amount of engine Oil to sensor O-ring.
2. Install sensor into cylinder block with a slight rocking action. Do not twist sensor into position as damage to O-ring may result.
CAUTION: Before tightening sensor mounting bolt, be sure sensor is completely flush to cylinder block . If sensor is not flush, damage to sensor mounting tang may result.
3. Install mounting bolt and tighten to 8 Nm (70 in. lbs.) torque.
4. Connect sensor pigtail harness to main engine wiring harness
5. Install new plastic tie strap to secure sensor pigtail harness to side of engine block. Thread tie strap through casting hole on cylinder block.
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Let me know if this helps or if you have other questions.
Take care,
Joe
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Friday, December 21st, 2018 AT 5:58 PM