f355 question

hello all i just bought a 355 spyder. 1996 26k miles. it was actually the one that was on wickedmotorworks.com that they sold last year. challenge grill. tubi exhaust, speedline wheels, full sound system. i love the car. see their website if you want to see it. my problem is that the abs light is on. it blinks before i start the engine but then stays solid when the car is running. my mechanic says it spits a code 33 which is a right rear wheel speed sensor but he says it ohms out fine. any ideas? i dont want to replace what i believe is probably an expensive part if i dont think its going to fix the problem.

anybody know anything about this exact car. just curious and thought id take a shot. this is my second ferrari (1978 308gts) and i love the cars and this website.
thanks and you can email me at [email protected]

 

I had exactly the same thing happen to mine and the Ferrari mech. said that the gap between the sensor and the surface it picks up was a little too wide to he narrowed it and all is ok now. I think he manufactured something to hold it closer to the wheel hub end if you get my drift. regards tony