According to the fsm, the o2 sensor should read about 1v. I am useing the Innovate Wideband. My car tends to bog at low rps, sometimes not. The O2 reading while driving( hailers recomendation) reads around 4.75 when it starts to bog. If I step on it, it goes down to 1.75 until I reac 3800 or so rpm. THen it bogs down.


some readings at idle
Type fsm my readings


Air FLow meter (VS) 2.5-3.5 2.78v
TPS 1v 1v
Air FLow Meter(intake) 2-3v 2.41v
INtake Air temp 1-2v 3.92


Dont know if that helps, but any info is appreciated.

 

If HAILERS said the 02 should read 1v.................he miscommunicated. He says the TPS reading at idle should read approx 1vdc. He says that a lot. But I don't remember him saying the 02 should read approx 1vdc at idle.

With a normal non emissions removed car, the 02 will read real, real, real low. Like .01-.03 b because the airpump air is mixed with exaust gas PRIOR to the 02 sensor.

 

Adding a ground to the engine block (i just used a thicker gauge cable and went from negative terminal to a bolt on the block on the power steering pump bracket) got rid of all my hesitation. Car runs/sounds/performs better imo. That and keep your spark plugs clean!! Mine were in fairly good shape, but i still polished them up and i could notice it idle/run better, before i even added the ground.

 

Sorry, I meant, "driving around with the voltage meter", not the values.

 

Your wideband reads 1.75 volts at idle? Or your stock O2? Wideband sensors usually read 0-5v with most of them having 14.7:1 at 2.5 volts. Here is a chart of what the voltages translate into on many widebands. I'm not sure how emissions plays into this.

What exactly is your O2 sensor setup? Did you replace your stock sensor with it, or are you running the stock O2 with stock ECU and then the Innovate in a separate bung? What engine management are you running?

I don't think a wideband should be reading 1 volt at idle like the FSM says.

 

Oh I blew it. I am useing the innovate LC-1 wideband w/the xd1, I think it is.... I hooked up the wrong output wire. The yellow one, reads out as a narrow band. It is resolved.

Mine is reading just over 1v at the stock ECU now that the wire is hooked up right..

Thank you though, I will look at the chart.

I am still having idle issues. I will know more when I get home.
My wideband at idle is reading 12.5