simpreza2 Posted July 25, 2009 Share Posted July 25, 2009 I was reading that this should be an easy swap and a decent amount of people have done this however; I just put a SOHC EJ22 into my 1997 Outback (which was a DOHC EJ25) and now it doesn't idle or run right. When I start the engine it catches and runs for 10 or seconds before stalling. When it does run, it sounds like its missing or loping(sp) like a v8 with a huge cam. I can keep the engine running by giving it gas but the rpm's shoot up very quickly. I drove it a mile or so but didn't get any codes. I checked the vac lines and they seem to be routed ok. EGR had a leak that I fixed. Any ideas? Details of swap... EJ22 block and heads (dual exhaust ports) 97 Intake with EGR 97 Mass Air Flow and Intake 97 ECU Link to comment Share on other sites More sharing options...
lmdew Posted July 25, 2009 Share Posted July 25, 2009 I've done 8 or so of these and yes it should be an easy swap. What was the condition of the engine you put in? Do you know it was a good engine? Double check the hoses, the large dia 1" hose from the IAC to the MAF will cause it not to idle. Are all the plugs getting spark? Does the idle change when you pull individual fuel injector plugs? Is the battery and alternator in good condition? If all checks good and you still have the problem, double check the timing belt. Link to comment Share on other sites More sharing options...
idosubaru Posted July 25, 2009 Share Posted July 25, 2009 My guess is a vacuum leak. Take carb cleaner, brake cleaner, starting fluid to the engine bay - leaks show up in 10 seconds with a few squirts. What year EJ22? you said you used the EJ25 intake..do you mean manifold, because those arent' interchangeable? Link to comment Share on other sites More sharing options...
simpreza2 Posted July 26, 2009 Author Share Posted July 26, 2009 My guess is a vacuum leak. Take carb cleaner, brake cleaner, starting fluid to the engine bay - leaks show up in 10 seconds with a few squirts. What year EJ22? you said you used the EJ25 intake..do you mean manifold, because those arent' interchangeable? Thanks guys for the help, I fixed it. When I put the intake manifold on, I was in a hurry and ripped it creating a vacuum leak. Shes all better now. Thanks again! And just to answer your questions...the EJ22 is from my 95 Legacy and I miss stated my earlier post I used a 95 intake manifold with EGR not the 97 EJ25. Link to comment Share on other sites More sharing options...
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