here's what i got to keep me busy
P0141, is an oxygen sensor code. Specifically, this code is "O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)". Bank 1 sensor 2 refers to the O2 sensor behind the catalytic converter on bank one, which will always be on the same side of the engine as number one cylinder.

i want to do it myself, any pointers? should i straight change the O2 sensor or do some tests on that heater circuit?