ScottAust Posted January 26, 2015 Share Posted January 26, 2015 Hello all, I have just done the 25 to 22 swap and it was very easy in the end. I have a 98 outback wagon and the donor car was a 95 Liberty ( Legacy ). I had a bit of confusion with the wiring and that was sorted out in a previous post -" EJ25D to EJ22E wiring issues" if you want to check out the background to help me with this question. The 22 is in and runs beautifully once it is warm. When it is cold it is hard to start and takes about 10 seconds of winding over with the starter. Once it does fire it only does about 300 or 400 revs for about 10 seconds then it goes up to normal idle. When it is hot it starts perfectly, it will fire within 1 or 2 seconds on the starter and goes straight to about 1500 revs and then back to idle like it should every time. The other issue is the thermo fans come on as soon as you turn the key on. I don't know if these 2 things are related or maybe they are symptoms pointing to the obvious problem or part that isn't working. As I saod I have only just finished the swap so have only run it in the shed for 15 mins or so a couple of times then test driven it for a few miles the next morning. In the afternoon I ran it and unplugged the fans and let it get to temp then plugged the fans back in and let it run for half an hour. I guess the ECU would not of had time to learn the differences as yet. Both cars were working as normal before the swap and didn't have either issue. Quote Link to comment Share on other sites More sharing options...
lmdew Posted January 26, 2015 Share Posted January 26, 2015 Sounds like the temp sensor was not plugged in or was damaged. There are two of them, one for the computer and one for the dash. Quote Link to comment Share on other sites More sharing options...
ScottAust Posted January 26, 2015 Author Share Posted January 26, 2015 I know there is one temp sender on the top front of the block between the alt and P/S pump ( give or take ) where is the other one ? Quote Link to comment Share on other sites More sharing options...
johnceggleston Posted January 26, 2015 Share Posted January 26, 2015 (edited) i know there is one temp sender on the top front of the block between thealt and P/S pump ( give or take ) where is the other one that is the oil pressure sensor, not temp. the temp sensors are in the crossover pipe under the intake manifold. the 2 wire unit feeds the ECU. also check the green diagnostic connectors under the dash. do you have any trouble codes? all vac hoses reconnected? no open nipples on the intake or under it? Edited January 26, 2015 by johnceggleston Quote Link to comment Share on other sites More sharing options...
ScottAust Posted January 27, 2015 Author Share Posted January 27, 2015 Ok my mistake with the oil sender. Don't know about any fault codes yet. Yes all the vac hoses are connected. But I know now that redish brown connector is the problem. All the other connectors clicked when they went back together. That one just pushed in. I didn't think much of it at the time other than it seemed a bit loose. I'll put money on that coming off ! Quote Link to comment Share on other sites More sharing options...
Gloyale Posted January 27, 2015 Share Posted January 27, 2015 Yes red/brown 2 wire connector on the crossover pipe is the ECU temp sensor. When it is faulty or non-op it the ECU will run fans all the time. Quote Link to comment Share on other sites More sharing options...
ScottAust Posted January 27, 2015 Author Share Posted January 27, 2015 Got home from work and with a torch looked down through the maze of wires and tubes and there was the little brown conection sitting all by its lonesome ! Plugged it back in ( that was a story of contortion and swearing ) and turned the key to on. No fans ! Hit the key and it fired straight up. It's been an adventure for a novice but it looks and runs just like a bought one !! Thanks to all for the help. Quote Link to comment Share on other sites More sharing options...
Olnick Posted January 27, 2015 Share Posted January 27, 2015 Ding-Ding-Ding! We have another Winner! Congrats, ScottAust. Quote Link to comment Share on other sites More sharing options...
ScottAust Posted January 28, 2015 Author Share Posted January 28, 2015 See like a bought one. Quote Link to comment Share on other sites More sharing options...
Fairtax4me Posted January 29, 2015 Share Posted January 29, 2015 Wish I had the patience to make my engine that clean! Mine looks like a mud factory. Quote Link to comment Share on other sites More sharing options...
ScottAust Posted January 29, 2015 Author Share Posted January 29, 2015 Thatt hasn't been cleaned after the swap yet ! Both engine bays were cleaned before the swap so I xould work on them without getting covers in grease and dirt. Being a first timer I wanted the see and feel everything. Quote Link to comment Share on other sites More sharing options...
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