Welcome to CarChip
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Threshold
*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.
Incompatible Vehicle List
Davis Instruments keeps an updated listing of all the US market vehicles that are currently not compatible
with the CarChip. See the CarChip Compatibility List for more information.
One Year Limited Warranty
We warrant our products to be free of defects in material and workmanship for one year from the date of
original purchase. While we make every effort to carefully manufacture our products to the highest
standards of quality, occasionally parts may be found to be missing, defective, or damaged.
If you have a defective part, return the product to us, shipping charges prepaid. Include proof of purchase
and a written explanation of the trouble. During the warranty period, we will, at our option, either repair
or replace the product free of charge.
This warranty does not cover damage due to improper installation or use, negligence, accident, or
unauthorized service, or incidental or consequential damages beyond Davis products themselves. Implied
warranties are limited in duration to the life of the limited warranty.
Some states do not allow limitations on how long an implied warranty lasts, or the exclusion or limitation
of incidental or consequential damages, so the above limitations may not apply to you. This warranty
gives you specific legal rights. You may have other rights, which vary from state to state and country to
country.
Safety Notice
CarChip has been carefully designed and tested to comply with OBDII protocols J1850-41.6, J1850-10.4,
ISO 9141, and KWP2000 (ISO14320), which are used on most cars and light trucks sold in the USA,
Summary of Contents for CarChip
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