2g guys with widebands, chime in

[snowborder714]

From my limited experience with the AEM unit, it will read no matter what AEM choice is used, but it's just a matter of how far off of the gauge it is. It should have no affect on the input signal.

You're giving up already, when all it'll take is to change the input to front o2 to check?

 

[razrman8]

Oh, well piss. The way I read it was i needed to wire into front o2. I am now headed out to check it. Lol. This damn wideband has me losing it!

 

[keithlag]

do you have the switch on the back of the gauge set at p4

 

[snowborder714]

That should only matter if he wanted to use the AEM unit to simulate a narrowband signal, correct?

 

[razrman8]

Well Brian, you will never guess what happened

 

[snowborder714]

Not sure what I'm to be looking at in that log. What did you change? Looks the same to me.

 

[razrman8]

Switched the ecu input to front o2. And I'm getting a wideband log now.

 

[snowborder714]

Ah, must've posted the wrong log then.



Anyway......

 

[razrman8]

Of course I did. Lol. Thanks for all the help.

 

[snowborder714]

No problem!

 

[razrman8]

Ok Brian, next question. Having my wb wired into front o2, would that keep from open loop.

 

[razrman8]

Closed loop rather. Cause front o2 isn't cycling.

 

[snowborder714]

Think about what you just said

Yes, if you have the rear o2 signal going into the front o2 wire, the front o2 signal never makes it to the ECU. Just swap the wideband input to the rear o2 sensor and reconnect the front o2 sensor.

 

[razrman8]

Lol. I retract that statement

Ok. Why is it that after I do the MAFcomp adjustment that link suggests, the car doesnt idle worth a damn.

 

[EagleTSIawd]

Lol. I retract that statement

Ok. Why is it that after I do the MAFcomp adjustment that link suggests, the car doesnt idle worth a damn.

from that log your ecu is in open loop. You need to simulate the o2 or put it back in.


... aaah wait, nvm... just noticed you got it resolved

 

[snowborder714]

Did you switch the wiring to the rear o2 input? If not, you need to simulate the front o2 sensor using the built-in narrowband simulation.

 

[razrman8]

Yes I switched it. Want to know what I did wrong? I read the ecu pin output diagram wrong.

 

[snowborder714]

Is the right log posted in #39 then, as I'm still seeing a front o2 reading 4.35v at times.

 

[razrman8]

No Brian, that is still the incorrect log. I failed to post a log showing the corrections. Below be the correct log.

 

[snowborder714]

Your fuel trims are off (see CombinedFT at idle), so that would be the next thing to work out.

 

[razrman8]

Alrighty, thanks for the point out Brian. I'll do some work on that.