DTC 13

CIRCUIT DESCRIPTION
The distributor in the Engine Control System contains 3 pickup coils (G1, G2 and NE). The G1, G2 signals inform the ECM of the standard crankshaft position. The NE signals inform the ECM of the crankshaft position and engine speed.





DETECTING CONDITION AND TROUBLE AREA

DIAGNOSIS
This code indicates that an intermittent problem of the G, NE signal from the distributor to the ECM has occurred, but that it is returned to normal. Note that although this problem may not necessarily appear at the time of inspection, it cannot be ignored because this diagnostic trouble code is output indicating that there is or was a malfunction in the G, NE signal circuit; this "malfunction" is usually a loose connector.
The distributor connector and the NE terminal of the ECM connector must therefore be checked for the following:
1. Loose connectors.
2. Dirty connector terminals.
3. Loose connector terminals.