I'm buying a DASMOPAR Map Clamp, I dont have a WIDEBAND as of yet ( $$ a little tight right now ) but was wondering can I use my buddies $4,000 SNAP ON SCAN TOOL to tune the A/F on the mapclamp ?
I plan to get a wideband ASAP but if I can tune with the scan tool this would be a plus for now.
no it wouldnt be the same, what the red brick is gonna read is your o2 sensor which is a narrowband. you wont be able to get in proper range to tune it accuratley. wait for the wideband
that is not exactly true about the narrowband. they are very accurate across the board. the problem is that they are not linear, but are a exponential or logrithmic. each point is 10x the voltage of the prior point. makes tuning a bitch, but it can be done. if you dont know what you are doing, it is VERY EASY to screw up.
on GEN III Gm computers we are able to set up a lean cruise, usually about 16:1 using the factory narrowband, but you have to know what voltages you are looking for, you cant just go off a percentage of lambda
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no i suggest you look it up, narrowbands dont have the range of a wideband
the range of a narrowband o2 sensor will get you close enough. i recommed you know what you are talking about before sharing. is it ideal? no, not at all, but it will get you through
the range of a narrowband o2 sensor will get you close enough. i recommed you know what you are talking about before sharing. is it ideal? no, not at all, but it will get you through
no, it will not get you close enough because the lowest it goes is about 13.5:1. is that where you tune your car? look it up tex
no, obd2 car has a wideband, in 2008 is when some cars are coming with widebands, we have a NARROWBAND
Volzwagon's have had widebands on them for quite some years. Are you telling me they aren't obd2?? Also to clarify, I NEVER said we had a wideband, I stated "the srt has a 0 to 5 volt o2 that is biased 2.5 volts. It will read as low as 9to1 and as high as 20to1." Do some reading and research before you tell people they're wrong.
This was taken straight from the service manuel:
"O2 SENSOR (NGC)
The O2 system with ignition on and engine off
has a normalized O2 voltage of around 5 volts as
displayed on the DRBIII or measured with a high
impedance voltmeter. As the O2 sensor starts generating
a signal the voltage will move towards 2.5
volts. The voltage will typically vary between 2.5
volts and 3.5 volts on a normal running engine. The
goal voltage is also typically between 2.5 and 3.5
volts. This implies that the 0-volt through 1-volt
range that you are used to is still valid, only it is
shifted up by a 2.5 volt offset. This 2.5 volt supply is
being delivered through the sensor return line."
Last edited by sour kraut : 06-26-2008 at 12:55 PM.
ok now you should learn to read, it still operates on a 1 volt scale, just at a different point. and yes you are wrong volkwagons dont have a wideband. why dont you go find out how a wideband works and how a narrowband works and then compare.
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Tune With Snap On Obd Scanner ?
Linear Mode
