Forced 9V through o2 sensor...no change - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

the3SecondJerk · 09-15-2003, 02:12 PM

I had suspicions that my o2 sensor wasnt working. When I hooked a multimeter up it read .22v and when I turned on my headlights read .12v WTF? I gave it throttle and it didnt change. So I decided to feed 9v though it from a square 9v battery. Figuring the ECU would read a rich condition and compensate. But the idle didn't change. Next I checked for continuity to the ECU from the lambda sensor and the red light lit up. So now I am thinking I have an ECU problem. There is minor corrosion inside the unit. I can see any shorts in the solder.

Any ideas?
Also my ECU is e5 (i have an s13 blacktop), can I use #62 off a redtop and not worry?

Thanks Dan

the3SecondJerk · 09-15-2003, 02:15 PM

PS SR is running filthy rich. Ruined a brand new nissan cat in 2 days. Nice waste of 500 bucks. I can peel carbon deposits off the downpipe. Obviously the car is running the entire time in open loop.

the3SecondJerk · 09-16-2003, 12:47 PM

I bought an ECU from matt at importintelligence.com hopefully it will work!

09-15-2003, 02:12 PM	#1
the3SecondJerk Zilvia Junkie Join Date: Jul 2002 Location: Fort Collins, CO Posts: 305 Trader Rating: (3) Feedback Score: 3 reviews	Forced 9V through o2 sensor...no change I had suspicions that my o2 sensor wasnt working. When I hooked a multimeter up it read .22v and when I turned on my headlights read .12v WTF? I gave it throttle and it didnt change. So I decided to feed 9v though it from a square 9v battery. Figuring the ECU would read a rich condition and compensate. But the idle didn't change. Next I checked for continuity to the ECU from the lambda sensor and the red light lit up. So now I am thinking I have an ECU problem. There is minor corrosion inside the unit. I can see any shorts in the solder. Any ideas? Also my ECU is e5 (i have an s13 blacktop), can I use #62 off a redtop and not worry? Thanks Dan __________________ Drive it like you stole it.

09-15-2003, 02:15 PM	#2
the3SecondJerk Zilvia Junkie Join Date: Jul 2002 Location: Fort Collins, CO Posts: 305 Trader Rating: (3) Feedback Score: 3 reviews	PS SR is running filthy rich. Ruined a brand new nissan cat in 2 days. Nice waste of 500 bucks. I can peel carbon deposits off the downpipe. Obviously the car is running the entire time in open loop. __________________ Drive it like you stole it.

09-16-2003, 12:47 PM	#3
the3SecondJerk Zilvia Junkie Join Date: Jul 2002 Location: Fort Collins, CO Posts: 305 Trader Rating: (3) Feedback Score: 3 reviews	I bought an ECU from matt at importintelligence.com hopefully it will work! __________________ Drive it like you stole it.