Engine Data Display
- Enter diagnostics and with code ".7.0" displayed, press "Reset" button on fuel data panel. Code ".9.0" should appear. If code ".9.0" does not appear, refer to switch test code ".7.9".
- Engine data display shows values of 13 parameters monitored by ECM. Parameter numbers ".0.1-.1.3" will be displayed for 1 second on ECC panel, followed by a numerical value. The parameter value will be displayed for 9 seconds. Each parameter and value will be repeated until manually advanced to next parameter.
- To advance display parameter, depress "Instant/Average" button on fuel data panel. To return to previously displayed parameter, depress "Reset" button. After last parameter is displayed, code ".9.5" should appear. Engine data display may be cleared at any time, by pressing "OFF" and "HIGH" buttons on ECC panel simultaneously. Code ".7.0" should appear.
- Engine data display information can be used to compare information of engine to that of a typically properly functioning engine for diagnosis of malfunctions. Parameters read and values displayed are as follows:
ENGINE DATA PARAMETERS
| Display |
Parameter |
Range |
| .0.1 |
TPS |
-10-90° |
| .0.2 |
MAP |
14-108 kPa |
| .0.3 |
BARO |
14-108 kPa |
| .0.4 |
Coolant Temp. |
-40-151°C |
| .0.5 |
MAT |
-40-151°C |
| .0.6 |
Injector Pulse |
0-19.9 ms |
| .0.7 |
Oxygen Sensor |
0-1.99 volts |
| .0.8 |
Spark Advance |
0-52° |
| .0.9 |
Ignition Cycles |
0-50 |
| .1.0 |
Battery Volts |
0-19.9 volts |
| .1.1 |
Engine RPM |
0-1990 |
| .1.2 |
Vehicle Speed |
0-199 MPH |
| .1.3 |
ECM PROM I.D. |
0-199 |