Instead of a connector, the timing is controlled by:
* Distributor: This is the primary component. The distributor itself contains the ignition module which controls the spark timing based on engine speed and other factors. It's located on the passenger side of the engine, near the front. There will be wiring connected to it, but not a single "timing connector."
* Engine Control Module (ECM): The ECM receives signals from various sensors (like the crankshaft position sensor and throttle position sensor) and adjusts the timing *indirectly* by controlling the ignition module within the distributor. The ECM is typically located under the dash or in the engine compartment, usually protected.
To clarify what you're trying to do:
* If you're trying to adjust the timing: You'll need a timing light and likely consult a repair manual to find the timing mark on the harmonic balancer and adjust the distributor accordingly. This isn't a simple plug-and-play connector operation.
* If you're troubleshooting an ignition problem: You'll need to check various components and their wiring, including the distributor cap, rotor, spark plugs, ignition coil (inside the distributor or separate depending on the specific engine), and potentially sensors connected to the ECM. The ECM itself might also be faulty.
Without knowing your specific purpose, it's hard to give more precise instructions. A repair manual specific to your 1994 Chevy Suburban 5.7L is highly recommended for accurate information and troubleshooting procedures.
