GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 897621  Size: SH
  1. Disconnect the intake air temperature (IAT) sensor connector.
  2. Loosen the clamp at the air cleaner assembly.
  3. Remove the push-push attachment from the outlet resonator/duct assembly to support bracket.
  4. Loosen the clamp at the throttle body assembly.
  5. Disconnect the PCV fresh air bent hose at the cam cover.
  6. Remove the outlet resonator/duct assembly.
  7. Disconnect the EI module electrical connector.

  8. Object Number: 896789  Size: SH
  9. If the module only is being replaced, remove the EI module attachment screws.
  10. Remove the ignition module attachment bolts.

  11. Object Number: 951506  Size: SH
  12. Remove the ignition module housing assembly with spark plug boots.

Installation Procedure


    Object Number: 951506  Size: SH
  1. Apply dialectic compound to the spark plug boots and ensure no corrosion is present.
  2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 894939  Size: SH
  3. Install the ignition module housing assembly with spark plug boots into position.
  4. Tighten
    Tighten the ignition module-to-camshaft cover bolts to 10 N·m (89 lb in).


    Object Number: 896789  Size: SH

    Important: Ensure the interconnect is line up and the interconnect seal is in place before installing the attachment screws.

  5. Install the EI module and attachment screws (if removed).
  6. Tighten
    Tighten the module screws to 1.5 N·m (13 lb in).

  7. Connect the EI module harness connector. Push in the connector until a slick is heard, then pull back to confirm a positive engagement.

  8. Object Number: 897621  Size: SH
  9. Position the outlet resonator/duct assembly into position.
  10. Connect the PCV fresh air bent hose assembly.
  11. Tighten the clamp at the throttle body assembly.
  12. Position the outlet resonator/duct assembly up with the support bracket and install the push-pin.
  13. Tighten the clamp at the air cleaner assembly.
  14. Connect the intake air temperature (IAT) sensor connector.
  15. Refer to Control Module References for programming and setup information.