I need some advice.Took my car into autozone today to have them scan for error codes.Was told that 3 codes were showing up.One for the manifold absolute pressure sensor(Or,M.A.P.S),one for the range performance sensor (This sensor,he said,was shorted out) and one for the “bank one” oxygen sensor (Which he also said was shorted out (I think he said it was showing high voltage usage or,that it was shorted out due to high voltage ?) He then told me also,that I should replace the M.A.P sensor first.
First,WHY would these sensors “short out” ? And,if I replace them,is this going to happen again ??? I’ve found one or two (?) of our dogs had something trapped underneath the car at night on at least a couple of occasions.Funny thing,though…I’d never heard any sounds coming from underneath the car when the dogs had done this.And,2-3 times I had found bits of wires in the gravel (Hard to spot there,too) that look like they had been chewed on or ripped out by an animal.Is it possible that a racoon (Or,something) got trapped by our dogs under there and the animal was just nervous or,scared and started chewing on wires ?? Could that have caused these issues ?
Nothing really seems to be wrong with the car other than that engine light coming on intermittently.Well…sometimes the idle fluctuates (Which I understand can be related to the o2 sensor.And,one last question…(Okay,maybe two)…Is this “bank one” oxygen sensor the upstream sensor or,the downstream sensor ? I ask this because I think it’s importan when ordering the part ?
Any advice any of you could give regarding this matter would be immensely appreciated !!