Ravenwoods Posted 17 hours ago Share Posted 17 hours ago (edited) My daughter has a Legacy (automatic transmission) with about 180,000 miles on it. So the problem is very intermittent and has never occurred while I drive it. It seems this car has a MAP sensor instead of a MAF Sensor. There is no check engine light but a PO420 code occurrs from time to time. Poor mileage. Occasionally runs rough or stalls, hesitates, jerks and lunges. Does this sound like a failing MAP sensor? We already removed the throttle body and cleaned it. Edited 17 hours ago by Ravenwoods Add more information Link to comment Share on other sites More sharing options...
el_freddo Posted 7 hours ago Share Posted 7 hours ago Try replacing the coil pack. The one on our 2000 RX Liberty (EJ251) gave out at ~480,000km. This gave a jerky drive sensation and was most obvious under load. Initially it was random but got to the point that it would always do it under load. Higher load = worst cut out etc. And yes, MAP on these engines. Link to comment Share on other sites More sharing options...
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