AFR Gauge on std lambda sensor
#1
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AFR Gauge on std lambda sensor
can you pipe into the signal wire from the std lambda sensor on the car for an AFR gauge without affecting the readingings being given to the ECU?
#3
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i would have thought so as well but i think it's a really low voltage 0v - 1v ? ... the AFR guage would probably have a buffer in it anyway if it was going to affect the reading.
#5
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dont worry chip i'm just borrowing one, and its only so i know when the closed loop stuffs working, not for tuning etc.
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Hi Jim, Go wideband Don’t waste you money messing about with the standard narrow band, as they are not that accurate, invest in a wideband setup.
Cheers
Steve
Cheers
Steve
#7
For checking the closed loop is functioning it will be fine.
In fact it will be better for that than a wideband, as if the lamda sensor is reading wrong for any reason then both the gauge and ecu will see the same wrong values so should still concur.
In fact it will be better for that than a wideband, as if the lamda sensor is reading wrong for any reason then both the gauge and ecu will see the same wrong values so should still concur.
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#9
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Hi Jim, Go wideband Don’t waste you money messing about with the standard narrow band, as they are not that accurate, invest in a wideband setup.
Cheers
Steve
Cheers
Steve
Agreed!!!!
#11
Narrow band sensors are only 'accurate' between about 14.3: 1 and 15.0:1 and most cars with turbos run considerably richer than 14.3:1 on boost, so it would just indicate RICH most of the time, but not tell you HOW rich.
Wide band has a different voltage range and is accurate from about 7.0:1 to around 35.0:1 and will actually provide you with useful information.
Wide band has a different voltage range and is accurate from about 7.0:1 to around 35.0:1 and will actually provide you with useful information.
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So it wont accuratley tell me weather or not my carbs are running to rich
or to lean, iwas going to use 2 aftermarket ones wired into 2 autometer
gauges.One for each bank of carbs on a v8. thanks
or to lean, iwas going to use 2 aftermarket ones wired into 2 autometer
gauges.One for each bank of carbs on a v8. thanks
#16
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chip... i want to know what the fueling's like (economy wise) etc.
since mine is closed loop it SHOULD always read stoich on cruise...
if it don't... then i need to use less throttle or less revs... tis just an indicator as to if i'm driving too hard or not i s'pose..
anywa, i can borrow this gauge for a while so don't see why i shouldnt bother... lol
since mine is closed loop it SHOULD always read stoich on cruise...
if it don't... then i need to use less throttle or less revs... tis just an indicator as to if i'm driving too hard or not i s'pose..
anywa, i can borrow this gauge for a while so don't see why i shouldnt bother... lol
#17
Testing the future
Originally Posted by tiny
So it wont accuratley tell me weather or not my carbs are running to rich
or to lean
or to lean
#19
Testing the future
no, that will bugger it up immediately.
wb sensors need a controller and stuff. do a search on here or google for wide band stuff. there's plenty of info out there. techedge for example.
wb sensors need a controller and stuff. do a search on here or google for wide band stuff. there's plenty of info out there. techedge for example.
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