Please pals, which sensor could be responsible for delayed 1-2 and 2-1 shifting in accord 2001 4cyl.

 

Idk maybe the clutch is going out or something. Those transmissions got issues from that year.

 

I think the op is referring to a automatic transmission vehicle.

 

there are clutches inside a auto trans...

 

Nein.
Check the 2nd gear pressure sensor.
Located below the distributor, screwed into the transmission.
If the sensor is gummed up, leaking, or the wire harness is damaged it will cause a delay in 1-2 and 2-1 shifts.

 

No codes?

How's the fluid?

 

yeah, no code.
New fluid, not burnt.
Problem is worse when the car has been driven for about 20min. better when cold.

 

It seems to be intact but I'll observe more closely later today.