tomhall
Member
Tom in MN here, I have 200 hrs. on RAF 2000 with the 2.5 FI Subaru. The engine has purred during the past 11 years. Problem : The RAF sat idle during the winter for 4 months ( nothing unusual, same for 11 years ). During an extended taxi prior to our " first flight " the engine ran rough, coughed and sputtered at RPM's between 1,500 & 2,000. Yesterday I drained half of the gas; same symptoms. Another EAA member had a " code reader " with a smart phone app. It was amazing the different data shown on that phone : RPM's, water temp., air intake temp., " miles per gallon " etc. There smoking gun seems to the Throttle Position Sensor. It's readout showed 3 % at 2,000 RPM's and other percents that made no sense. So, I will replace the sensor and hope that's the fix. Question; anyone else have experience with the symptoms and/or the sensor ? Thanks, Tom Hall in MN