DIY AFR meter for £10 with excellent results!
25 February 2003, 12:51 AM
#211
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Honest answer - none of them. Get a knocklink.
Can you clarify slightly for me please.
I would like to migrate this circuit to my Skyline as a method of measuring AFR whilst tuning, would you consider this suitable for measuring AFR in conjunction with one of them fancy 5 wire Honda sensors and another independant way of measuring knock (which I already have).
I know I'm putting you on the spot with this, but if you get it wrong, your toast
25 February 2003, 12:52 AM
#212
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Honest answer - none of them. Get a knocklink.
Can you clarify slightly for me please.
I would like to migrate this circuit to my Skyline as a method of measuring AFR whilst tuning, would you consider this suitable for measuring AFR in conjunction with one of them fancy 5 wire Honda sensors and another independant way of measuring knock (which I already have).
I know I'm putting you on the spot with this, but if you get it wrong, your toast
01 August 2003, 10:52 PM
#215
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Well the Dawes AFR is basically the same....
They all have some value, but compared to a wideband lambda they are basically misleading IMHO.
[Edited by john banks - 1/8/2003 10:53:29 PM]
They all have some value, but compared to a wideband lambda they are basically misleading IMHO.
[Edited by john banks - 1/8/2003 10:53:29 PM]
04 January 2004, 07:41 PM
#219
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If you are thinking of making one, it may be worth fitting a 15v 1.3w zener diode across the supply lines. This will eliminate any high voltage spikes (on supply line)that could possibly damage the 3914 IC.
Just a thought.....
Q : John, Is the lambda sensor in the up pipe on early WRX (92) the normal (i.e - suitable for this reader) ??
Si
Just a thought.....
Q : John, Is the lambda sensor in the up pipe on early WRX (92) the normal (i.e - suitable for this reader) ??
Si
06 January 2004, 08:41 PM
#222
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Can anyone take a pic of this PIN21 as an idiots guide
I picked up the Lamda feed from the ECU connector B136 PIN 21 as John did. It's the first connector facing you (lower)and was coloured Blue on my UK MY00. I used one of those blue Scotchlok connectors.
I picked up the Lamda feed from the ECU connector B136 PIN 21 as John did. It's the first connector facing you (lower)and was coloured Blue on my UK MY00. I used one of those blue Scotchlok connectors.
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