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Showing results for tags 'electrical backfeed'.
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Hello, Back ground info: I have a 1994 Legacy Wagon. 2.2L, AWD, NA, 200,000 + miles. Conditions: 25 degrees for the past month. Snow on the ground. Recently replaced the Alternator. -- Problem -- Today I started my Legacy and it fired up like always. I drove about 3 miles. Motor warmed up like it should. All was running normally. I pulled into a gas station and filled my tank. Back out on the road, the motor began to run poorly. I could not accelerate, the motor lacked power. The check engine light NEVER came on. As I drove forward the car seemed to buck back and forth, yet the tach remained at a set RPM. Back home, I looked the car over. The car would run and Idle. The exhaust smelled sort of sour. There were some sounds of a miss fire. The motor did not bounce or vibrate as if to be running on 3 plugs. I could rev the motor up to 3K with no complaint. I let the motor cool. Then tried to drive it down the street. The problem had not gone away. Now, the motor will not fire up. When I turn the key to the RUN position, 3 seconds after I get a wild relay clicking sound coming from under the hood. While this sound is happening the fuel line going from the fuel filter to the motor (injectors) is pulsating to match. BUT, the lines coming from the fuel tank are not pulsing. Also, the check engine light comes on and matches the relays click sounds. And the tach needle bounces wildly. The motor will turn over but will not fire up now. I mentioned that I'd changed the alternator, just in case someone might have a connection. I changed the alternator two weeks ago and the car has run perfect since them. Also the cold weather has been on the ground here for the past month or so. I recall replacing the alternator in an icy cold wind storm. The pulsing fuel line from the motor to the fuel filter is a good clue. But I cant find any relay in the area that matches the clicks. I've felt the injectors and they are not making any sound or movement. If you might have a hint, please send it my way. Thanks for reading this. Rog