Chart 8: ECM Noise

TRY THE FOLLOWING FIXES IN THE GIVEN ORDER.

Fig. 1 Shield The Entire Car Wiring Harness Next To The ECM Using Aluminum Tape. The Aluminum Tape Must Be Grounded.:

Fig. 2 Install A 1224205 Filter Package.:

1. INSTALL A 1224206 FILTER PACKAGE TO THE IGNITION POWER LINE (CKT 43) OF THE ECM. THE BLACK WIRE OF THE FILTER PACKAGE SHOULD FACE TOWARDS THE ECM. THE FILTER SHOULD BE TRIED WITH THE FILTER'S BLACK LEAD GROUNDED AND UNGROUNDED TO DETERMINE BEST RESULTS (SEE FIGURE 2).

2. INSTALL A 1224205 FILTER PACKAGE TO THE BATTERY LEAD (CKT 840) OF THE ECM. AGAIN, FACE THE BLACK WIRE OF THE 1224205 TOWARDS THE ECM (SEE FIGURE 2).

3. RUN A BRAIDED GROUND STRAP FROM MOUNTING BOLT ON ECM TO CHASSIS GROUND (SEE FIGURE 1).

4. WRAP WIRING HARNESS GOING INTO ECM WITH ALUMINUM FOIL TAPE AND GROUND BOTH ENDS OF THE TAPE WITH A BRAIDED GROUND STRAP (SEE FIGURE 1).