Spark Control Computer Spark Test
- Warm engine to normal operating temperature. Disconnect carburetor switch or unground it. Be sure coolant temperature switch/sensor is connected and working properly.
- Remove and plug vacuum hose at vacuum transducer. Connect an auxiliary vacuum supply to vacuum transducer and apply 16 in. Hg. Increase engine speed to 2000 RPM and wait 1 minute before checking specifications. Advance specifications are in addition to basic advance. See Spark Advance Test Specifications table.
NOTE:
On some systems with an accumulator (timer), the specified time must be reached with the carburetor switch ungrounded before checking for specified spark advance schedule.
- If computer fails to obtain settings, replace computer.
SPARK ADVANCE TEST SPECIFICATIONS
| Application |
Computer Part No. |
Advance |
| 1.6L |
5213641 |
19-27° |
| 1.7L |
5213438 |
26-34° |
| 2.2L |
| Rampage/Scamp |
| Fed. |
5213691 |
24-32° |
| Calif. |
| Man. Trans. |
5213834 |
24-32° |
| Auto. Trans. |
5213832 |
24-32° |
| High Alt. |
5213840 |
30-38° |
| All Others |
| Fed. |
| Man. Trans. |
5213834 |
24-32° |
| Auto. Trans. |
5213832 |
24-32° |
| Calif. |
| Man. Trans. |
5213838 |
27-35° |
| Auto. Trans. |
5213836 |
30-38° |
| High Alt. |
5213840 |
30-38° |