Where is the computer chip located on a 1991 Chevy Suburban with 350 V-8 TBI Auto 4 wheel drive?

You're likely looking for the Engine Control Module (ECM), also known as the computer chip, on your 1991 Chevy Suburban. It's not exactly a chip but a larger electronic unit that controls the engine's functions.

Here's where you'll likely find it:

* Under the hood, near the firewall: The most common location is on the driver's side of the engine compartment, near the firewall.

* Behind the glove compartment: It could be located behind the glove compartment, inside the passenger cabin.

* On the passenger side of the engine compartment: Some models might place the ECM on the passenger side of the engine bay.

To find it definitively:

1. Consult your vehicle's service manual: The manual will have a diagram and specific location information for your 1991 Suburban.

2. Check the fuse box: Look for a fuse labeled "ECM" or "Engine Control Module." The fuse should be located near the ECM.

3. Look for a rectangular black box with wires connected: The ECM is typically a rectangular black box with multiple wires and connectors attached.

Important notes:

* The ECM might be hidden behind other components: You might need to remove some covers or panels to see it clearly.

* Be careful when working around the ECM: It's an electronic device, so avoid touching any exposed circuits.

If you're having trouble locating it, you can always consult a qualified mechanic. They can identify the ECM's location and provide you with the information you need.