Need help to get the Check Engine code from a 94 Oldsmobile 88 What should be done besides take it in?

A 1994 Oldsmobile 88 doesn't have an OBD-II system that readily provides check engine codes via a simple onboard computer readout like modern cars. You'll need to use a different method. Here's what you can try, but keep in mind this is more involved and less reliable than a modern OBD-II scanner:

Method 1: The Jumper Wire Method (Less Reliable):

This method relies on a specific procedure to read blink codes from the car's diagnostic system. It is notoriously unreliable on older vehicles like your 1994 Oldsmobile 88 and may not work at all. The accuracy is questionable.

1. Locate the Diagnostic Connector: This is usually a 6-pin or ALDL (Assembly Line Diagnostic Link) connector, often under the dashboard, near the steering column. Its location varies. Consult your owner's manual if possible.

2. Jumper Wire: You'll need a jumper wire (a short piece of wire with alligator clips on both ends).

3. Connect the Jumper: Connect the jumper wire to the ALDL connector. The specific terminals vary greatly depending on the year and model of your vehicle and which connector it is. Consult a GM-specific repair manual for your exact model for the correct connector pins to short. Without knowing the correct pin locations, you risk causing damage.

4. Turn the Ignition: Turn the ignition key to the "ON" position (don't start the engine).

5. Read the Blink Codes: If the system is working, the check engine light will flash a series of short and long flashes. Each short flash is a "1" and each long flash is a "0." Record the sequence.

6. Interpret the Codes: This is the hardest part. There's no universal code list for this method. You'll need a repair manual specific to your 1994 Oldsmobile 88 to translate the blink codes into trouble codes. These manuals are often available online or at auto parts stores.

Why This Method is Problematic:

* Connector Location: Finding the correct connector and the correct terminals to jump are very challenging for this older model vehicle.

* Code Interpretation: Even if you get a code, translating it is extremely difficult without a specific repair manual for your exact vehicle's year, model, and engine.

* Reliability: The system may not even work properly due to age and electrical issues.

Recommendation:

While the jumper wire method is an option, its limitations make it frustrating and potentially unreliable. Taking your Oldsmobile to a mechanic or using a professional OBD-I scanner (specific to your car's system) is far more reliable and will save you time and potential headaches. Even an auto parts store can likely scan it. They usually offer this service for free, or a small fee. Getting a proper diagnosis is the best way to avoid further issues and costly repairs.