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Discussion in 'VR - VS' started by Deuce, Oct 14, 2012.
Finally getting some engine data with wideband AFR overlay:
Green line is wide band data.
Excuse my ignorance but does that green line tell us it is running lean ?
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.
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.
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.
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
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.
Get a log of it happening and send it too me. Hopefully something obvious once we have the data.
Cool as, I'll try that one day soon (with afr's)
If engine lights comes on does it record any codes?
Notice with my ute gets 'lively' if nail it anything under 70km/h but cruise at that speed then hit it falls flat then really starts moving at 80km/h...although instead of lean it runs rich enough you can smell it,chews through fuel but otherwise runs well.
Getting aldl cable & nvram 'cos like yours datalogging is only way to work out what is going on.
Last time it was a TPS code. But I will check again and see.
Starter motor might be dead.
Pulled it out last night. Hopefully I will have time to check operation of it later today.
Well would ya look at that:
When all them horsepowers and killerwasps fight back!!
On a serious note, hoping to find a dead bosch starter I can use the housing from.
Old mate Newton strikes again.
I am trying to remember if I had a backfire on start up earlier this year and maybe that did the damage which is only showing now.
I might have a chev gear reduction one in my boot you can have
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