'05 Aveo Losing Power, Bucking, and Intermittent Stalling. No codes, hard to diagnose

[xintersecty]

There is the throttle body position sensor. Yeah I would start checking electrical systems. Maybe check your grounds to the coil packs and make sure nothing is corroded.

[zucifer]

Finally got some codes to spit out:

P0337 - Crankshaft position sensor low input
P0137 - o2 Sensor Circuit low voltage bank 1 sensor 2

I'm guessing the o2 sensor error is a result of the engine running rich because of the Crankshaft Position sensor error. I just replaced the crank sensor itself, but the connector has some corrosion on it (Female pin ends). Been trying to figure out the best way to clean the connector and remove the corrosion. I've heard of some home remedies such as soaking the connector in a mix of baking soda, Vinegar, and coca-cola. Then once the corrosion is gone coat the connector and pins with dielectric grease.

Has anyone had any luck removing corrosion from connectors before?

I've also read that I should pull the sensor and spray the trigger wheel & sensor with brake parts cleaner to remove any built up gunk that could be throwing the sensor off.

[xintersecty]

Baking powder/water solution will break-down the corrosion. Trick is to get everything clean and dry. I apply the solution with an old toothbrush, then flush with water, then dry with compressed air. Protect yourself from spray, especially your eyes. To clean/polish the contact surfaces I use: emery cloth or very fine sandpaper, a fine wire brush, small knife blade, pencil eraser. Once surfaces are dry and polished, I use an electrical contact paste to prevent future corrosion.

[Samal]

Finally got some codes to spit out:

P0337 - Crankshaft position sensor low input
P0137 - o2 Sensor Circuit low voltage bank 1 sensor 2

I'm guessing the o2 sensor error is a result of the engine running rich because of the Crankshaft Position sensor error. I just replaced the crank sensor itself, but the connector has some corrosion on it (Female pin ends). Been trying to figure out the best way to clean the connector and remove the corrosion. I've heard of some home remedies such as soaking the connector in a mix of baking soda, Vinegar, and coca-cola. Then once the corrosion is gone coat the connector and pins with dielectric grease.

Has anyone had any luck removing corrosion from connectors before?

I've also read that I should pull the sensor and spray the trigger wheel & sensor with brake parts cleaner to remove any built up gunk that could be throwing the sensor off.

Hi zucifer, i have same issue with my aveo 5 2008 1.4 have you fixed your car? did you find the reason of stalling and drop down your RPM? could you share info here? thanks in advance