Hondata

Under steady speed / light throttle, motor jerks / bucks for no known reason.
I have a Omni power TPS sensor; calibrated via volt meter to spec.

Romeditor reads negative numbers, sometimes as low as -9 % when letting off the throttle, but settles at 1% when idling.

Could the TPS be the problem?

I have tried a new stock map sensor and already changed the map plug because of a bad connection.

Here is a datalog and the rom I am using. The car acts the same way with the stock ecu, so I think it would be due to a bad sensor, but no codes.

Any negative reading means there is either a problem with the tps sensor or with the thottle body.

I put the original sensor back on this evening and calibrated it. So far so good but I will just have to wait and see.