Service engine soon light.... need advice
 

I have a 2002 Sentra with 22K miles on it...The service engine soon light is on...otherwise the car runs perfectly. I took it in today to a local Nissan dealership and was told that the service engine soon light was on due to an internal failure within the ECU/PCM. Poor ground causing the light to come on and that I must replace the ECU/PCM at a cost of $670. I declined the repair of the ECU and went to a local auto store to have the codes pulled.... P1444 and P0031.

Additionally, the dealership told me that I needed to replace the battery because it only tested at 282CCA.

Does this sound right? I just got the feeling that I should run very fast from this place.

Thanks,
Selena

RE: Service engine soon light.... need advice
 

heres what those codes mean and there is nothing there that say a bad pcm/ecu. but your battery is going bad if its only 281cca cause it should be around 550+cca
DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
DTC P0031 HO2S1 HEATER
DTC 1444 possible causes
EVAP control system pressure sensor
EVAP canister purge volume control solenoid valve (The valve is stuck open.)
EVAP canister vent control valve
EVAP canister
Hoses (Hoses are connected incorrectly or clogged.)

DTC P0031 possible causes
-Harness or connectors
(The heated oxygen sensor 1 heater circuit is open or shorted)
Heated oxygen sensor 1 heater is bad (so bad ho2s 1)








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