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fuel gauge calibration

Posted: Thu Jun 02, 2011 4:32 pm
by jjg
Hello All

Does anyone have the calibration values for the Fuel gauge values, ie what are the PWM values for the levels fronm the sender unit ? from high to low level , I seem to have lost the values as the gauge seems to puls width .

The car is a v8 vy2 gen 3 (commodore)

Thanks

JG

Re: fuel gauge calibration

Posted: Thu Jun 02, 2011 4:39 pm
by Doctor Bob
The fuel Guage sender is a simple variable resistor in VY its hard wired to the dash

Re: fuel gauge calibration

Posted: Thu Jun 02, 2011 4:46 pm
by jjg
Yes that may so , but the software require calibration values in table , what are these values supposed to be ?

Re: fuel gauge calibration

Posted: Thu Jun 02, 2011 5:37 pm
by TTVN
set to zero

Re: fuel gauge calibration

Posted: Thu Jun 02, 2011 7:53 pm
by Doctor Bob
what is the exact issue with the guage?
the only way it can loose the calibration is through a bad programming error

one set of values i have is
fuel resistance 60 65 100 120 140 160 175 195 210 235
fuel litres X 2 150 132 122 112 102 96 86 74 50 20
from a sedan

what are you using to program it?

Re: fuel gauge calibration

Posted: Thu Jun 02, 2011 8:51 pm
by jjg
HP tuners and yes the answer is to set the PWM gauge output table to 0

THanks you all

Re: fuel gauge calibration

Posted: Fri Jun 03, 2011 7:12 pm
by Doctor Bob
ahh that explains a lot, the dash does not use PWM so set it to Zero