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Title: ECM Power Relay Load Circuit - P0688 Open Circuit Post by: amd is the best on July 17, 2017, 07:17:23 AM Guys,
I have had this intermittent code and no start issue happen a few times recently and seems to becoming more frequent. Saturday evening I drove to get fuel, pulled into the station, filled to the top and got back in the car only to have the car just crank and crank with no start. I can hear the fuel pump prime but I notice I can't hear the throttle body functioning with key on. EPC light is on. Clearing the codes does nothing. I have found that unhooking the battery and hooking it back up resolves the issue temporarily. Car will fire right back up afterword. Drove home with no issues. Yesterday morning, go to start the car and same issue. Unhook battery and back in action. Today it started without an issue. I'm ordering the relay today but has anyone else ever seen this? Possible causes besides the relay? Car info: 2000 Audi A4 1.8t ATW wideband conversion emissions deletes (SAI, cat, rear o2, evap) |