Intermittent Fuel supply on 04 WRX
Two month old 04 WRX, 3,800klm, Apexi Pod Filter, 2.5 inch high flow muffler, Chip Torque piggy back chip - all fitted together and carefully dynotuned at 2800klm Runs brilliantly. Smooth, fast and consistant. Except................
The fuel system shuts down at any time. Start up, idling, cruising. It happened a couple of times prior to mods, but I thought is was the Subaru security alarm as it worked when the alarm was recoded, so I did not take it in to Subaru.
Then one cold and wet night (what else?) - Turned it off, came back 10 minutes later - fuel pump not running. It was towed to a Subaru dealer. They replaced the fuel pump and also the fuel pump controller which they apparently damaged in the process. This took a week.
Three days back on the road and same problem again. No sequence to it. Turn it off, start - OK. Turn it off, start - no fuel. Steady cruise on flat road - fuel cuts off. Pull over, try to start - OK again - drove home. Next morning - nothing - towed to the dealer agin.
Subaru say their diagnostics say the fuel pump controller is causing the problem. But they dont know what to do about it. Sound like a wiring problem to me as it is too unpredictable. Now they also say the chip might be causing it, but I can't see that as the problem started prior.
Anyone had a similar problem? Any suggestions greatfully received