Hugh Keir said:
You might also consider using the Lambda OFF when programming the ignition and fuel maps to the correct settings. This has the benefit of disabling the closed loop Lambda/fuel control from interfering with your set-up.
Thanxx for this info.. Hugh (I will PM you a similar msg. I hope this is OK..)
Sorry for my ignorance..
Lambda Off - Is this the same as setting the O2 F/B to Off setting? .. and has the O2 Sensor Reg -setting any influence on what you describe also?
I haven´t got a clue what effect this setting (Sensor Reg.) has on the system. HELP !!
Running the engine constantly with O2 F/B in OFF setting will be possible when catalyst is removed.. without any problems.. Right ?
As what I (believe) understand is that the F/B setting activate the use of Lambda (O2)-sensors for keeping the air/fuel mixture within the catalyst working range, during conditions this is applicable on.. (low engine load, decellerating etc).
If no catalyst is in place, there is actually no requirement for this feedback of air/fuel mixture. But if I have a catalyst fitted without active feedback it will result in degraded/loss of exhaust purification function in the future.
Perhaps an active sensor feedback will have the effect of reducing fuel consumption as well, during low load circumstances (NO cat. used). - Or does this give the exact opposite effect ? Someone who can tell.. please do so.
Regards
//Lars