need help with voltage check - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

lazersgm · 06-23-2006, 09:28 PM

i am installing a wideband o2 in my 93 240sx se. i am haveing problems with the 0-1 volt output on the wide band so i conected a volt meter to it to see what it was reading. i was geting as high as 1.3 volts so i disconected the o2 meter and cheacked the voltage on the ECU side of the wiring harnes and it read .3 volts? whats up with this? did not think i would get voltage out of the ecu on the o2 sensor wire. could you guys check your cars and see if you get any voltage out of the ecu side of the plug to your o2 sensor? it would help me a lot. mabe my ecu is bad or the wireing harnes. thanks

NIK90s13 · 06-24-2006, 07:16 AM

I can check in a bit, I havent had breakfast. LOL Was the key in the on position? car running? car off? Oh I have KADE if it matters.

lazersgm · 06-24-2006, 08:46 AM

yes key on. i have kade also. what year is yours? thanks for the help.

NIK90s13 · 06-24-2006, 09:46 AM

My motor is a 91, At the o2 sencer harness side I'm getting between .27v/.28v. I'm looking throug my FSM to find the proper pin for the o2 sencer at the ecu, what pin or what color wire do you want me to check?

lazersgm · 06-24-2006, 11:08 AM

just need you to disconect your o2 sensor and turn on the ing and get the voltage from the wire that goes to your o2 sensor from the ecu. you can check it from the wire in the eng bay. not the wire on the o2 sensor but the wire that conects to the o2 sensor on the factory wireing harnes. thanks for your help.

06-23-2006, 09:28 PM	#1
lazersgm Join Date: Jun 2006 Location: rhode island Posts: 5 Trader Rating: (0) Feedback Score: 0 reviews	need help with voltage check i am installing a wideband o2 in my 93 240sx se. i am haveing problems with the 0-1 volt output on the wide band so i conected a volt meter to it to see what it was reading. i was geting as high as 1.3 volts so i disconected the o2 meter and cheacked the voltage on the ECU side of the wiring harnes and it read .3 volts? whats up with this? did not think i would get voltage out of the ecu on the o2 sensor wire. could you guys check your cars and see if you get any voltage out of the ecu side of the plug to your o2 sensor? it would help me a lot. mabe my ecu is bad or the wireing harnes. thanks

06-24-2006, 07:16 AM	#2
NIK90s13 Zilvia Junkie Join Date: Jan 2006 Location: texas Age: 58 Posts: 471 Trader Rating: (0) Feedback Score: 0 reviews	I can check in a bit, I havent had breakfast. LOL Was the key in the on position? car running? car off? Oh I have KADE if it matters.

06-24-2006, 08:46 AM	#3
lazersgm Join Date: Jun 2006 Location: rhode island Posts: 5 Trader Rating: (0) Feedback Score: 0 reviews	yes key on. i have kade also. what year is yours? thanks for the help.

06-24-2006, 09:46 AM	#4
NIK90s13 Zilvia Junkie Join Date: Jan 2006 Location: texas Age: 58 Posts: 471 Trader Rating: (0) Feedback Score: 0 reviews	My motor is a 91, At the o2 sencer harness side I'm getting between .27v/.28v. I'm looking throug my FSM to find the proper pin for the o2 sencer at the ecu, what pin or what color wire do you want me to check?

06-24-2006, 11:08 AM	#5
lazersgm Join Date: Jun 2006 Location: rhode island Posts: 5 Trader Rating: (0) Feedback Score: 0 reviews	just need you to disconect your o2 sensor and turn on the ing and get the voltage from the wire that goes to your o2 sensor from the ecu. you can check it from the wire in the eng bay. not the wire on the o2 sensor but the wire that conects to the o2 sensor on the factory wireing harnes. thanks for your help.