I have a JDM ver4 STi wagon that I fitted a deatchwerks dw200 fuel pump. This pump is appx 12-14 months old.
Pump was great until last month it stopped priming so I couldn't start the car. I tapped and jiggle the connector and that seems to do the trick.
So just a few days ago the car wouldn't start and I don't hear the pump priming on startup. I tried to tap and jiggle the connector like last time with no luck.
I had the tow truck deliver my car to my home. I told him about my issue and he said to try and bang on the bottom of the tank. I was banging on the tank while he turned the key and the pump started to prime and the car started. Tow truck driver mentioned the motor is seizing up.
The relay, rear harness (plugs 1 and 4), and the pump is getting 11 volts. I removed the pump assembly and just reconnected the plug to test it. The connection and wiring from the pump to the top connector looks clean and tight. The plugs on 1 and 4 look melted, I'm hoping this is the reason. Any idea why it would melt? Just old wiring?