01 Sunfire, 2.4 L, Engine Code

Static Sloth

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Hello,

My check engine light came on recently and I had someone use a device that shows the engine error code. It came back with the following reading:

"P1810 - ATF Pressure Manual Valve Position Switch Malfunction."

I was wondering if anyone could help with this? I am not knowledgeable with fixing cars myself but I know a few people that are, so I will relay any information I get to them to see if they can help. The car is an automatic.

And in case it is of any importance - I recently had the waterpump changed, as well as the coolant system fluid flushed out and replaced with new fluid. The timing chain also jumped a tooth I guess when the mechanic was replacing the waterpump which caused my engine to be rocking back and forth when driving, but I brought it back to him and he fixed it.

Thank you for any assistance.
 
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