Davis Instruments 8246 User Manual

Welcome to CarChip

Acceleration/Deceleration
Threshold

0 to 3 G, 0 to 30 m/sec

0.03 G, 0.3 m/sec

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

Prior Release Notes

CarChip Software version 2.2 includes the following changes:

•

The

Tools Menu

has been added to the menu options on the tool bar. The Tools Menu contains

three new options for organizing trip data and keeping track of readiness code information. These
options are.

•

Fuel Entry

- Lets you enter information about fuel usage and costs for every vehicle you

have added to the CarChip software. Fuel entry information is used to calculate the price
you pay per mile for fuel and is displayed in the

CarChip Home Pag

e and

Vehicle

Summary View

•

Emissions Readiness

- Displays the last recorded status of the emissions readiness codes

for every vehicle in the CarChip Database. Use this dialog box to view whether or not a
particular readiness code is supported for the vehicle and whether or not the monitor
completed its test for each of the available readiness codes.

•

Trip Type Entry

- Lets you categorize the all the recorded trips by trip type and provides

a mileage analysis of the types of trips taken.