Live data readings
28 April 2011, 07:32 PM
#1
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Live data readings
Hi all,
Just done some live data readings on my MY00 Turbo with some interesting results !
Long story short - can a MAF stop my O2 sensor working ?
Data Below:
OLD MAF v NEW MAF
MAF Volts 0.46 - 2.7 >< 0.3 - 2.9 (only went to 4k)
O2 Sensor 0.1 - 0.97 >< 0.000 - 0.005
O2 sensor was scaling up/down as I believe it should on idle with old MAF but as can see nothing on idle with new !
I think the old MAF is on way out as with the new one fitted whilst driving above 2.5k and on boost it feels better - but the readings suggest it too is cream crackered or am I missing something ?
Thanks as always,
wazlee
Just done some live data readings on my MY00 Turbo with some interesting results !
Long story short - can a MAF stop my O2 sensor working ?
Data Below:
OLD MAF v NEW MAF
MAF Volts 0.46 - 2.7 >< 0.3 - 2.9 (only went to 4k)
O2 Sensor 0.1 - 0.97 >< 0.000 - 0.005
O2 sensor was scaling up/down as I believe it should on idle with old MAF but as can see nothing on idle with new !
I think the old MAF is on way out as with the new one fitted whilst driving above 2.5k and on boost it feels better - but the readings suggest it too is cream crackered or am I missing something ?
Thanks as always,
wazlee
Last edited by wazlee; 28 April 2011 at 07:34 PM. Reason: TO ENABLE READINGS TO BE READ EASIER
04 May 2011, 12:33 PM
#3
Did you reset the ECU after installing the MAF? It will take quite a while for it to re-learn the trims it uses off-boost and for the O2 sensor readings to start to oscillate.
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