This is a question for Steve First a little history. I have all new Tyco Relays (all but the K relay). I checked that both coils are working. I checked that fuel is being supplied by the fuel pumps when you turn the engine over at first. The engine tries to run but stops after a few seconds. I performed your test on the Y connector. Test #1 showed +12v on the two (white/blue) wires. Test #2 shows the +12v on the (beige & beige/black) during starting but drops off after a few seconds. The engine tries to run but stops. It appears that it runs out of fuel because the power to the pumps is cut off. There is a click that I hear as the power to the pumps is turned off. Does this sound like the tachometric relay (Bosh # 0280230006) if so is there a way to jump the relay to verify that its the problem? Can you jump the T-30 to the T-87 pin to check the relay? I have the following> T-15 >12v key on, T-30>12v from battery, T-31>ground, T-50>12v when starting. If I do need the relay where is the place to get it? Thanks in advance for your help in the problem.