Hi, this is Danny. I have a '94 altima w/automatic transmission and Iam also having a poor millage problem and the O/D light flshes when I turn ignition switch to on. Somtimes when I turn the car on the O/D light flashes and the car shakes/shivers. I first thought it was MAF sensor problem but whem I retreive the DTC's only code 02, Vehicle Speed Sensor (vss) circuit problem appeared. I tested the vss for continuity and for AC volts it tested ok. I checked spark plugs, replaced air and fuel filters, changed motor and tranny oils and tire pressure is good. The good thing is that is does not die on me. I don't know what else to do to. Any suggestions? Please.
Thanks in advance Danny from Fresno, Ca