Today came the engine light on and it gives me the error P1870.
After googleing a bit I found some websites mentioned that this is a common problem on the transmission valve body. I remember now when this problem started. It started after I replaced the tranny fluid and filter, but I don't understand why.
Do you guys think that can cause the stutter ?
I also wasnt able to find any valve body part and how to replace it.
Thank you