VR V-8 SS

[Deuce]

Finally getting some engine data with wideband AFR overlay:

Green line is wide band data.

 

[Immortality]

Looks familiar

 

[VS 5.0]

Finally getting some engine data with wideband AFR overlay:
View attachment 207033
Green line is wide band data.

Excuse my ignorance but does that green line tell us it is running lean ?

 

[Immortality]

Yes. Lean idle. But we need to verify the WB 02 data is accurate as the PCM still has the pullup resistor on the board that quiet often is removed as it effects the input voltage from the WB O2 driver.

 

[Deuce]

Excuse my ignorance but does that green line tell us it is running lean ?

Yeap, pretty sure gauge was reading 16.1:1 most of the time. So green line does look a fraction high. A good spot for idle. Should go 13:1 at W.O.T but will see what happens.
I've read about step up resistor (1000ohms) but can adjust gauge output so might try that instead.

 

[delcowizzid]

Remove the resistor follow the instructions in the 11p zip folder its easy to heat with you iron and slide it sideways off the pads there's not much else close to it to get in the way.you can't adjust around it as soon as you pop it off it should read fine

 

[Deuce]

Remove the resistor follow the instructions in the 11p zip folder its easy to heat with you iron and slide it sideways off the pads there's not much else close to it to get in the way.you can't adjust around it as soon as you pop it off it should read fine

In the meantime, is the error a known amount? Like always 10% up, or 1pt higher than actual?
Unlikely, but hopeful.

 

[delcowizzid]

Nah I don't think it's linear so will be different amount of error from 0-5v

 

[Deuce]

Nah I don't think it's linear so will be different amount of error from 0-5v

Went for a short drive yesterday and it looks to consistently read 2 units higher on the laptop than the gauge itself.
So where that log says 17, it is actually only 15:1

 

[Deuce]

Thought 11p had fixed the full throttle issue.
But went for a quick drive tonight: rolling from the lights, stomp it from around 10kph, back end lights up and gets all wiggly (closed course road of course), and at around 70kph Road speed the engine light comes on and trans goes heavy again. Previously this would happen sooner/easier, so it is better but still not fixed.
I'm sure it is more tune related than wiring, but, time will tell.