Quote:
Originally Posted by
zzeus
Thanks for the info kev, think I will put back the DNA restrictor to be save, I have measured the airtemp sensor at around 27 degrees C’s and the resistance was about 1.8k ohm, when I increased the temp to 36 degrees C’s it did go down to about 1.2 or 1.3k ohm’s. Will I be able to determine if the fuel/air ratio is in the right range by looking at the sparkplug? I have done the AIS mod and it did helped a lot with the backfiring - thanks again for all the info.
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I measured the A/F ratio using a Wide Band Power Commander so no quess work was done, connect a 5K resistor in series & you will be safe.
Checking the plug with unleaded fuels these days is a bit of guess work.