My check engine light goes on and I hook up an OBDII code reader and get no codes...I reset everything and it still goes on. What I have noticed is that it'll go on when I accelerate. So i get the light but no codes...anyone have any ideas what the problem might be?

 

Have u tried it with any other OBDII readers? or maybe the gas pedal method? It might just be your code reader.

 

Go to Autozone and see if they can pull a code. If so, there's something wrong with your reader. If not,

 

thanx for the help...went to autozone to find out the code is a P0031...which is supposed to be the O2 sensor...the guys behind the counter didn't seem knowledgeble at all and didn't know what answer to give me when I asked "so what do i do now?" I tried looking for a write up but didn't come up with anything....any help would be greatly appriciated

 

find out which o2 sensor(s) are bad and replace. thats what you should do.

 

There doesn't seem to be a p0031 code I can find. Are you sure it's not a p0131 error? If so, that would be a front o2 sensor problem and I would go with an OEM part, not aftermarket like Bosch.

 

ya pretty sure it was that p0031..my obdII reader didn't pick it up (don't know why)...I might go to the stealership to get more info

 

To my knowledge and after a quick Google, there aren't any codes lower than p0100.

http://www.obdii.com/codes.html

 

Yes there are...I just recently pulled a couple codes off my Max...P0011 and P0021 (IVT Control Bank 1 sensor and IVT Control Bank 2 sensor).

Use this link...
http://forums.maxima.org/showpost.ph...&postcount=100

P0011 - IVT Control (Bank 1)
P0021 - IVT Control (Bank 2)
P0031 - Heated Oxygen Sensor 1 Heater Low Voltage (Bank 1)
P0032 - Heated Oxygen Sensor 1 Heater Low Voltage (Bank 2)
P0037 - Heated Oxygen Sensor 2 Heater Low Voltage (Bank 1)
P0038 - Heated Oxygen Sensor 2 Heater Low Voltage (Bank 2)
P0051 - Heated Oxygen Sensor 1 Heater High Voltage (Bank 1)
P0052 - Heated Oxygen Sensor 1 Heater High Voltage (Bank 2)
P0057 - Heated Oxygen Sensor 2 Heater High Voltage (Bank 1)
P0058 - Heated Oxygen Sensor 2 Heater High Voltage (Bank 2)
P0100 - Mass Air Flow Sensor

 

I could not find any reference to an IVT Control Bank Sensor in my 2000 FSM nor any error codes below p0100. Does 5.5 gen have variable valve timing? Then that could be it.


The following is the first page of error codes in numerical order from my FSM:

P0000
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.
—
P0100 MAF SEN/CIRCUIT*3
P0105 ABSL PRES SEN/CIRC
P0110 AIR TEMP SEN/CIRC
P0115 COOLANT T SEN/CIRC*3
P0120 THRTL POS SEN/CIRC*3
P0125 *COOLANT T SEN/CIRC
P0130 HO2S1 (B1)
P0131 HO2S1 (B1)
P0132 HO2S1 (B1)
P0133 HO2S1 (B1)
P0134 HO2S1 (B1)
P0135 HO2S1 HTR (B1)
P0137 HO2S2 (B1)
P0138 HO2S2 (B1)
P0139 HO2S2 (B1)
P0140 HO2S2 (B1)
P0141 HO2S2 HTR (B1)
P0150 HO2S1 (B2)
P0151 HO2S1 (B2)
P0152 HO2S1 (B2)
P0153 HO2S1 (B2)
P0154 HO2S1 (B2)
P0155 HO2S1 HTR (B2)
P0157 HO2S2 (B2)
P0158 HO2S2 (B2)
P0159 HO2S2 (B2)
P0160 HO2S2 (B2)
P0161 HO2S2 HTR (B2)
P0171 FUEL SYS-LEAN/BK1
P0172 FUEL SYS-RICH/BK1
P0174 FUEL SYS-LEAN/BK2
P0175 FUEL SYS-RICH/BK2
P0180 FUEL TEMP SEN/CIRC

Again, please refer to this reference:

http://www.obdii.com/codes.html

 

I did find the codes lower than p0100. Not in my FSM, but here they are.

P0010....'A' Camshaft Position Actuator Circuit (Bank 1)
P0011....'A' Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)
P0012....'A' Camshaft Position - Timing Over-Retarded (Bank 1)
P0013....'B' Camshaft Position - Actuator Circuit (Bank 1)
P0014....'B' Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)
P0015....'B' Camshaft Position -Timing Over-Retarded (Bank 1)
P0020....'A' Camshaft Position Actuator Circuit (Bank 2)
P0021....'A' Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)
P0022....'A' Camshaft Position - Timing Over-Retarded (Bank 2)
P0023....'B' Camshaft Position - Actuator Circuit (Bank 2)
P0024....'B' Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)
P0025....'B' Camshaft Position - Timing Over-Retarded (Bank 2)
P0030....HO2S Heater Control Circuit (Bank 1 Sensor 1)
P0031....HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
P0032....HO2S Heater Control Circuit High (Bank 1 Sensor 1)
P0033....Turbo Charger Bypass Valve Control Circuit
P0034....Turbo Charger Bypass Valve Control Circuit Low
P0035....Turbo Charger Bypass Valve Control Circuit High
P0036....HO2S Heater Control Circuit (Bank 1 Sensor 2)
P0037....HO2S Heater Control Circuit Low (Bank 1 Sensor 2)
P0038....HO2S Heater Control Circuit High (Bank 1 Sensor 2)
P0042....HO2S Heater Control Circuit (Bank 1 Sensor 3)
P0043....HO2S Heater Control Circuit Low (Bank 1 Sensor 3)
P0044....HO2S Heater Control Circuit High (Bank 1 Sensor 3)
P0050....HO2S Heater Control Circuit (Bank 2....Sensor 1)
P0051....HO2S Heater Control Circuit Low (Bank 2 Sensor 1)
P0052....HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0056....HO2S Heater Control Circuit (Bank 2 Sensor 2)
P0057....HO2S Heater Control Circuit Low (Bank 2 Sensor 2)
P0058....HO2S Heater Control Circuit High (Bank 2 Sensor 2)
P0062....HO2S Heater Control Circuit (Bank 2 Sensor 3)
P0063....HO2S Heater Control Circuit Low (Bank 2 Sensor 3)
P0064....HO2S Heater Control Circuit High (Bank 2 Sensor 3)
P0065....Air Assisted Injector Control Range/Performance
P0066....Air Assisted Injector Control Circuit or Circuit Low
P0067....Air Assisted Injector Control Circuit High
P0070....Ambient Air Temperature Sensor Circuit
P0071....Ambient Air Temperature Sensor Range/Performance
P0072....Ambient Air Temperature Sensor Circuit Low Input
P0073....Ambient Air Temperature Sensor Circuit High Input
P0074....Ambient Air Temperature Sensor Circuit Intermittent
P0075....Intake Valve Control Solenoid Circuit (Bank 1)
P0076....Intake Valve Control Solenoid Circuit Low (Bank 1)
P0077....Intake Valve Control Solenoid Circuit High (Bank 1)
P0078....Exhaust Valve Control Solenoid Circuit (Bank 1)
P0079....Exhaust Valve Control Solenoid Circuit Low (Bank 1)
P0080....Exhaust Valve Control Solenoid Circuit High (Bank 1)
P0081....Intake valve Control Solenoid Circuit (Bank 2)
P0082....Intake Valve Control Solenoid Circuit Low (Bank 2)
P0083....Intake Valve Control Solenoid Circuit High (Bank 2)
P0084....Exhaust Valve Control Solenoid Circuit (Bank 2)
P0085....Exhaust Valve Control Solenoid Circuit Low (Bank 2)
P0086....Exhaust Valve Control Solenoid Circuit High (Bank 2

 

THATS PROBABLY Y THE READER DIDNT PULL THE CODE. BECAUSE ITS LOWER THAN P0100. HMMM VEERY INTERESTING. LOVE THIS SITE. I LEARN SO MUCH HERE.

 

Please, Please turn off the CAPS LOCK.