Bruski

D'oh! I didn't even think about Ebay. Thanks for the tip! It is on the way.

Thanks for all of the info and help, guys. It appears that the ECU is at fault. Which leads to the next question, who do you recommend to repair it? It appears that there are several companies ranging in price from $195 to $400. Or, I can get a new one from the dealer fro $640 or so. Suggestions?

Cougar - thanks for the info, that all makes sense. When you say pin A16 of the ECU, how is that referenced? Are the three plugs A,B, and C? How are the wires counted, left to right/top to bottom? I traced it by color/continuity but would like to confirm by pin designation. Thanks.

That's part of the mystery. There is continuity from the ground side of the relay to the terminal on the ECU that I believe is the correct wire (same light green color, has continuity). Then, if I back-probe it, there is constant continuity to ground (???) no matter what the position of the key is. But, the pump never turns on unless I provide a direct connection from the relay to ground. That's what has me confused.

If it is the ECU, do I need to replace it or is there somebody that can fix it? How do I confirm that it is the ECU? It appears that there is a guy called the ECU doctor that repairs ECU's. Anybody have any experience with this company? They're in the UK somewhere, is there anybody in the US that repairs ECU's?

Positive. Like I said, if I provide a ground for the switching side of the relay, it starts and runs fine. Would the ECU function in all other respects except the fuel pump relay grounding?

2000 Subaru Outback 4 cylinder 106K miles Car wouldn't start on Wednesday. Diagnosed it as a no fuel condition. Checked fuel pump fuse and relay. Relay was suspect so I bypassed it. Still no start. Put a fuel pressure gauge on it, 0 psi. Replaced pump. Still no pressure but the pump is definitely running - low flow/no pressure. OK, hmmm Took out the new pump and noticed that the cap on the "accumulator" was cock-eyed and cracked allowing fuel to dump back into the tank. 'Course they don't sell that part separately. So I welded the old one back together and replaced the O-ring. Got pressure but still had to bypass the relay. Replaced the relay. Still nothing. I can get the relay to close and the pump to come on if I ground the switching side. The switching side is supposed to be grounded by the ECU. I found the wire where it goes into the ECU by continuity. I back-probed it and it shows constant ground (?). Hmmm. Maybe the ECU needs to be reset but there are no codes according to my reader. I've gone through the recommended procedure to reset it (disconnect battery, press brake pedal a few times and let sit for 45 min) but still nothing. What am I missing? I've thought about the possibility of a fried ECU but everything else works fine. All fuses check out ok and there are no codes. Suggestions?? TIA, Chris