DAVIS CarChip Online Help (8221, 8226, 8245, 8246) - Manual (Page 106)

CarChip Online Help Printable Version
*Range and resolution of sensor measurements only. Accuracy is dependent on the accuracy of the
vehicle’s sensors.
Data Parameters for CarChip E/X Only
Parameter Range* Resolution*
Engine Speed 0 to 16,384 rpm 1 rpm
Throttle Position 0 to 100% 0.1%
Coolant Temperature -40° to +420°F, -40° to +215°C 2°F, 1°C
Engine Load 0 to 100% 0.1%
Air Flow Rate 0 to 8714 lb/min, 0 to 655.35
gm/sec 0.1 lb/min, 0.01
gm/sec
Intake Air Temperature -40° to +420°F, -40° to +215°C 2°F, 1°C
Intake Manifold Pressure 0 to 75 in. hg., 0 to 255 kPaA 0.3 in. hg., 1 kPaA
Fuel Pressure 0 to 110 psiG, 0 to 765 kPaG 0.5 psiG, 3 kPaG
O2 Sensor Voltage (B1-2, S1-4,
8 total) 0 to 1.275 V 0.005 V
Ignition Timing Advance -64° to 63.5° 0.5°
Short Term Fuel Trim -100% to 99.22% 0.8%
Long Term Fuel Trim -100% to 99.22% 0.8%
Battery Voltage 6 to 16 VDC 0.1 VDC
*Range and resolution of sensor measurements only. Accuracy is dependent on the accuracy of the
vehicle’s sensors.
See also:
Incompatible Vehicle List
Back to How CarChip Works | More Information
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Connecting an Older Model CarChip to a Computer
The older models of the CarChip data logger connect to your computer using a USB connection (# 8211,
8221, 8225, 8241, 8245) or using a serial port connection (# 8210, 8220). See Connecting CarChip Pro to
a Computer if you have a CarChip Pro or CarChip Fleet Pro (# 8226, 8246).
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