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Old 02-07-2009, 06:23 PM   #1
SlowJoe
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Datalogging?

here is a list of what i can watch. say out of 5 of them whats the best to watch and why?

battery_voltage
coolant_temp
desired_idle_rpm
fp_duty_cycle
idle_spd_valve_d
inj_press_drop
intake_air_temp
load
lt_fuel_trim_b1
" " _b2
maf_counts
maf_voltage
rpm
short_term_trim_
" " "
spark
thrt_pos_absolut
AIN_1
" " 2
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Old 02-07-2009, 08:57 PM   #2
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I would think it would depend on what you're trying to accomplish.....ie: if you're tuning idle, part throttle, under load, etc. etc.
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Old 02-07-2009, 10:03 PM   #3
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I log 5 on mine.
boost
rpm's
MAF volt
egt
tps

if you can do the injector pulse that will help a lot!
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Old 02-08-2009, 09:42 AM   #4
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Quote:
Originally Posted by SvoBrown View Post
I log 5 on mine.
boost
rpm's
MAF volt
egt
tps

if you can do the injector pulse that will help a lot!

MAF volt
tps

are u comparing them togather?
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Old 02-08-2009, 05:27 PM   #5
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The tps showed how bad I was at lifting the petal. I wanted to add timing as I went more on the throttle so I would have more control of the power going down. Turbo's are hard to control sometimes.
THinking out loud again. But it was a good information on how everything worked. I am still learning.
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Old 02-08-2009, 06:44 PM   #6
QWKSNKE
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Quote:
Originally Posted by ncontt View Post
I would think it would depend on what you're trying to accomplish.....ie: if you're tuning idle, part throttle, under load, etc. etc.
+1..
Unless you have done a major change to the car, you don't need to much tuning that is data logging related.

When dealing with a new blower setup or a MAF change, then you would want to datalog MAF voltage, TPS, Load, RPM, and timing
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Old 02-08-2009, 08:07 PM   #7
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these 2 say invalid while data logging

maf_counts
maf_voltage
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