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Where is the ECM located on 1994 Olds 98

Where is the Electronic Control Module located?

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richard allen

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Under the glove box

Posted on Jun 13, 2012

Testimonial: "After another more in depth thorough search we finally found it. Thanks!"

  • patallenksu Jun 16, 2012

    Do you know where the camshaft sensor is on the same car? 1994 olds 98

  • richard allen Jun 16, 2012

    yes its on the top right side of the timing cover whats you issue is it a no start?? may want to ck. fuel press. and the crank pos.sensors were were very common to fail give me all your info and i can help



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SOURCE: Electronic Control Module Installation 1994 G20 Chevy Van

I just had the same problem. If it is a regular van try under the driver seat in a plastic box. If it is a conversion van try in a pannel just behind driver seat on side of van wall behind a pannel that looks like a vent.

Posted on Apr 09, 2009


Carlos Rojas

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SOURCE: ECM location 1998 Oldsmobile Silhouette

On the 98 Silhouette, the PCM should be located in the air filter housing.

Posted on May 21, 2008

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Were is the ecm located?

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    When the term Electronic Control Module (ECM) is used in this guide it will refer to the engine control computer regardless that it may be a Vehicle Control Module (VCM), Powertrain Control Module (PCM) or Engine Control Module (ECM).
    The Electronic Control Module (ECM) is required to maintain the exhaust emissions at acceptable levels. The module is a small, solid state computer which receives signals from many sources and sensors; it uses these data to make judgments about operating conditions and then control output signals to the fuel and emission systems to match the current requirements.
    Engines coupled to electronically controlled transmissions employ a Powertrain Control Module (PCM) or Vehicle Control Module (VCM) to oversee both engine and transmission operation. The integrated functions of engine and transmission control allow accurate gear selection and improved fuel economy.
    In the event of an ECM failure, the system will default to a pre-programmed set of values. These are compromise values which allow the engine to operate, although at a reduced efficiency. This is variously known as the default, limp-in or back-up mode. Driveability is almost always affected when the ECM enters this mode.


    See Figures 1 and 2

    0900c152800a7f96.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. Fig. 1: ECM mounting scheme-except 1996 models

    0900c152800a7f97.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. Fig. 2: ECM mounting scheme-1996 models
    The ECM is located in the passenger side footwell in the kick panel up to 1996. In 1996, the ECM is located in the engine compartment next to the battery.

    1. Disconnect the negative battery cable.
    2. Disengage the connectors from the ECM.
    3. Remove the spring retainer off and over the rail of the ECM on vehicles except 1996.
    4. Slide the ECM out of the bracket at an angle.
    5. Remove the ECM.

    To install:
    1. Install the ECM into the bracket.
    2. Install the spring retainer (except 1996) and plug in the electrical connectors.
    3. Connect the negative battery cable.

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    Where is the ECM located on the '94 Olds 88 Royale?

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    Where is the PCM located on a 1991 Oldsmobile 98 Regency elite?

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    ECM location 1998 Oldsmobile Silhouette

    On the 98 Silhouette, the PCM should be located in the air filter housing.

    May 20, 2008 | 1998 Oldsmobile Silhouette

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