mattbogenberger

2001 Sentra GXE 1.8L

Service engine soon light has come on.
Instrument panel has also been intermittently dying, all the needles drop to zero.

I just went to advance auto parts and had them read the codes.

They gave me the following:

DTC (Codes)

P0500
Veh Speed Sensor A
Malfunction


DTC Pending(Codes)

P0135
O2 Sensor Heater
Circuit Malfunction
(Bank 1 Sensor 1)

P0141
O2 Sensor Heater
Circuit Malfunction
(Bank 1 Sensor 2)

P0155
O2 Sensor Heater
Circuit Malfunction
(Bank 2 Sensor 1)

P0161
O2 Sensor Heater
Circuit Malfunction
(Bank 2 Sensor 2)

P0464
Fuel Level Sensor A
CKT Intermittent

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Could somebody please tell me if they are just a lot of things going wrong at once, or is this indicative of a bigger problem maybe?

Any advice on fixing these issues would also be greatly appreciated.

Thanks!

chimmike

sounds to me like a big short somewhere. If those problems were all really happening, the car would run excessively rich due to fouled/bad oxygen sensors, and your speedo would be way off.

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lstrahinic

Have you had all of the recalls taken care of? There are three possible ones for your year/model that pertain to the ECM and one with a crank position sensor - they could be throwing things off and giving you those codes. I found out about the recall when my car died (accelerator stopped working) on the interstate - I had the recall work done and solved that problem...

bigern45

the codes for the oxygen sensors would not necessarily affect the performance of your car. they all list the heater circuit, which is just something newer cars have to heat up the o2 sensors quicker so they can be used sooner, since they are a much more reliable and efficient way to monitor the fuel/air mixture for your vehicle. the same with the fuel level sensor. it will not affect your cars performance. but the speed sensor is the catcher, and it is pointing to where the problem in your car exists. i just had a newer model frontier with the same problem, after it was driven for a while, the gauges would just die, and the one code that was recorded was the speed sensor code. see, in nissans, for some reason they sent the speed sensor signal first of all to the instrument panel, and then to the ecu, instead of to the ecu first, then to the instrument panel. so i removed the instrument panel, set the a/c on high, plugged it up so it would reach and placed the instrument panel in front of the a/c, and after five minutes, the gauges worked! then turn on the heat, and the gauges again die off, also resetting the speed sensor code. so the instrument panel circuit board was heating up and electronically breaking down, more than likely opening a hot solder or maybe a ground in the circuit panel. i replaced the instrument panel and it works perfect. the same could be said of your fuel level sensor , maybe the signal goes to the instrument panel in that case as well. you still could have a short or a bad ground some where, i have never seen four heater circuits go bad at once, and who knows, maybe the instrument panel and the oxygen sensor heater circuits are tied up together. hope that helps.