December 21, 200916 yr This is my 2nd Subaru. Bought at 105K miles and now has 171K. Well taken care of since new. Regular maintenance performed by myself. Have just noticed in the past 2 weeks that I've developed a 'engine lag' between 2000 and 2500 on the tach. Engine seems to bog down at that point and once past 2500, everything is back to normal. I'm in the north country driving in the winter but it seems to do it whether the engine is cold or fully warmed up. Never noticed before and I would have. No warning lights or anything out of the ordinary. If can borrow a code reader. Do you think the problem would show up on the reader? Anybody have a similiar problem and cure? Thanks!
December 21, 200916 yr Probably won't show up as a code. However you may be able to view runtime data and look at the knock information. You may have got some bad gas, and the ECU has pulled timing in that area. You could try resetting the ECU. I get some similar things happening to my 97 OBS, and it seems to go away when I reset the ECU via the scan tool.
December 21, 200916 yr Author You could try resetting the ECU. I get some similar things happening to my 97 OBS, and it seems to go away when I reset the ECU via the scan tool. Ok, I'm good ,,,,, but not that good. 'Resetting the ECU via the scan tool.'' Can you explain that to me? I think I know what you are getting at but I'm not sure. Thanks!
December 21, 200916 yr Author Ok, I'm good ,,,,, but not that good. 'Resetting the ECU via the scan tool.'' Can you explain that to me? I think I know what you are getting at but I'm not sure. Thanks! Ok, I also read a bunch of the threads re: resetting the ECU and am going to try the 'pull the ground cable for 30+ minutes' method this afternoon and see if that helps. I will keep you fine folks posted on the results.
December 21, 200916 yr Author Ok, I also read a bunch of the threads re: resetting the ECU and am going to try the 'pull the ground cable for 30+ minutes' method this afternoon and see if that helps. I will keep you fine folks posted on the results. Well, pulled the ground cable. Let it set for 35 minutes. Started it up and........................... it runs like a champ again! Thanks Everybody!
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