Sienna 2000, code p0171, p1135. Should I order for Denso 234-9007 or 234-9009 part for replacing a/f ratio sensor.
I have Toyota Sienna 2000, V6-2995 3.0 L. Got scanned and diagonosed check enging light. The service center gave report "code p0171 bank 1 lean, p1130 sa/f ratio sensor ckt range performance b1, p1135 a/f ratio sensor heater ckt fault b151, inspected heater circuit, measured resistance and heater is open, spec 0.8-1.6 ohms, must replace sensor"
Now I want to order online for Denso air/fuel ratio sensor but I am confused that, is this the right upstream or left upstream sensor before catalytic which needs replacement? (For Right upstream, Denso has part 234-9009 whereas for left they have part 234-9007). Moreover, which (Denso 234-9007 or 234-9009) will it be replaced with one near firewall or near radiator?
Additional Info: Pacific motors told that the replacement part is 234-9009, but my search on web confused me and is suggesting otherwise. That is teh reason for asking the query.
Saturday, May 12th, 2012 AT 10:44 PM