Wakeup666 Posted February 16, 2015 Share Posted February 16, 2015 Hi guys. I'm doing a motor swap in my buddies 97 legacywith a ej25. I got a 96 ej25 motor in and it runs but is surging at low idle. Then eventually will die. I had the motor out and re did all the gaskets. I am stumped. Can anyone help?? 1 Link to comment Share on other sites More sharing options...
lmdew Posted February 16, 2015 Share Posted February 16, 2015 Sounds like the IAC hose, large 1" one is off. Link to comment Share on other sites More sharing options...
Wakeup666 Posted February 16, 2015 Author Share Posted February 16, 2015 All the vacuum lines are hooked up. The big ones and the small ones but still runs like there's a big vacuum leaks but I can't hear anything hissing Link to comment Share on other sites More sharing options...
idosubaru Posted February 16, 2015 Share Posted February 16, 2015 idle controller or vacuum leak - ifhooked up it could sitll be a cracked hose, etc spray some carb cleaner around while it's running - if oyu hit a leak it'll surge like mad. Link to comment Share on other sites More sharing options...
Fairtax4me Posted February 16, 2015 Share Posted February 16, 2015 If it has the box airbox that attaches to the throttle body make sure the bottom clips are seated together properly. Throttle cable too tight can cause problems with initial startup, make sure it has a little bit of slack so it's not pulling the lever. Did you remove the fuel rails from the manifold? If so did you replace the fuel injector o-rings and the fuel rail o-rings? Link to comment Share on other sites More sharing options...
ccrinc Posted February 16, 2015 Share Posted February 16, 2015 This is just a remote possibility, but have you checked to see if the ECU numbers are the same? According to Subaruparts.com, they are different numbers.The '96 EJ25 DOHC was a one year only engine with hydraulic lifters rather than solid. The valves are significantly shorter on the '96. Just a thought. Link to comment Share on other sites More sharing options...
Wakeup666 Posted February 22, 2015 Author Share Posted February 22, 2015 It's a timing issue. I've retimed it and now I can't get the cams to not move when I'm putting the belt on. I get one side fine and move to the other side and then everything moves agai. But with the ecu. I've heard of people having the 96 motor on the 97 ecu. And the fuel rail I've replaced the injector gaskets I've replaced every gaske. Thanks guys! pointing me in the right direction is a big help. Thanks again! Link to comment Share on other sites More sharing options...
Gloyale Posted February 22, 2015 Share Posted February 22, 2015 It's a timing issue. I've retimed it and now I can't get the cams to not move when I'm putting the belt on. I get one side fine and move to the other side and then everything moves agai. But with the ecu. I've heard of people having the 96 motor on the 97 ecu. And the fuel rail I've replaced the injector gaskets I've replaced every gaske. Thanks guys! pointing me in the right direction is a big help. Thanks again! You need to hold the drivers side cams. Spring clamps and a couple 17mm wrenches help/ Link to comment Share on other sites More sharing options...
Wakeup666 Posted February 22, 2015 Author Share Posted February 22, 2015 But then I put tension on the belt and they spin Link to comment Share on other sites More sharing options...
Wakeup666 Posted February 22, 2015 Author Share Posted February 22, 2015 What do you do with the wrenches? I've used the clamps Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now