I have a volvo v90 that gives error code po801,

[Sirenfire]

po803, po810 but i don't know what they mean?

[cod_fragger]

Give us a call and we'll be more than happy to interpret the error codes over the phone at no cost.www.popularmechanix.comVolvo specialist since 1985....Cant believe i been technician here for 20yrs. and my first full time job...i luv it

[Dan A]

P08xxx codes are transmission related.P0801 Reverse Inhibit Control Circuit Malfunction P0803 1-4 Upshift (Skip Shift) Solenoid Control Circuit MalfunctionI don't find anything for P0810. The other two are likely transmission solenoid malfunctions.When posting questions you should post your car's year and also indicate what syptoms you are seeing and any service history (or lack of) you can think of that might be relevant. Volvo tranny's are pretty solid generally. If you have a malfunctioning solenoid, a transmission flush with the recommended fluid could help a lot. Over a couple hundred miles on the new fluid, the solenoid issue may resolve, otherwise you may need replacement.