Fuel pump Relay

Thanks so much for the help!

Greetings,
I recently changed the cylinder head and timing cover and chain gear due to damage done by the chain wearing through the timing cover. Since reassembling, their is spark but no fuel flow. I can hear and feel the relay located at the fuse box and the relay under the right side kick panel. I tested for voltage at the connector to the fuel tank inside the right rear wheel well and got no voltage to the fuel pump. Can you advise?

I blocked open the flap inside the airflow meter and there was voltage to the fuel pump when the engine was cranked, as measured at the connector in the right rear wheel well. What now?

The fuel pump works fine when voltage is applied to it. Both relays are working. The problem seems to be that the only way to get voltage to the fuel pump is to block open the flap in the airbox.

My questions now is what does this situation indicate is the problem that prevents normal operation of the fuel pump? Can you advise?

Fuel pump came to life, but "Check Engine" light is on while engine is running. Engine runs rough and wont idle. Can you tell me where the "Check Engine harness connector" is located and what it looks like in terms of number of connectors.

There is no check engine connector located anywhere near the fuse box. I searched the underdash area and the engine compartment and all I could find in the way of available connectors are the two shown in the attached photo which are located in the left underhood area close to the ignition coil. Neither has anything on it that identifies the contacts. The larger has three wires entering it and the smaller has two wires. Is either of these the check engine connector?

Hello again,

I couldn't find anything that could be described as a gray box near the coil. I did find two grommets on the inner fender where the two round connectors, shown in the earlier photo, seem to store. There is a squarish yellow connector with two conductors shown in both attached photos. could this be the "check connector"?