Normal Scan Data Values - Includes Pids

Diagnostic Reference Values:

Part 1

Diagnostic Reference Values:

Part 2

Diagnostic Reference Values:

Part 3


Generic OBD II PID Values:

PID HOT IDLE 2500 RPM UNITS

LFT1 -8 to +8 -10 to +10 %
LFT2 -8 to +8 -10 to +10 %
LOAD 25 25 %
MAF 5.9 17.7 G/S
SFT1 -6 to +6 -8 to +8 %
SFT2 -6 to +6 -8 to +8 %
SFT11 -5 to +5 -10 to +10 %
SFT12 95-100 95-100 %
SFT21 -5 to +5 -10 to +10 %
SFT22 95-100 95-100 %

All generic OBD II readings under no load (Park or Neutral).


Special Notes:

- If the supplemental information is applicable, a letter will appear next to the value.

- Reference values may vary + /-2O% depending on operating conditions and other factors. RPM values are axle and tire dependent.

- Downstream 02S(12, 22) will only switch lean to rich when catalyst monitor is active.

- Refer to OBD II PID List for PID descriptions.

- AC on.

- Cooling fan on (single, low or high speed).

- 02S(s) should switch from rich to lean at least once every 3 seconds. 02S voltage should toggle above and below .450 DCV and never be a negative value. Valid 02S switching only occurs during closed loop fuel control.

- Downstream 02S(s) will stay at a constant voltage with catalyst monitor off (positive value only). With catalyst monitor on, 02S will switch rich to lean above and below .450 DCV and never be a negative value.

- Brake pedal depressed.

- Catalyst monitor off.