logic23 Posted January 3, 2016 Share Posted January 3, 2016 (edited) So i just finished swapping a 02 wrx (engine, all wiring, trans.. everything) in to a 02 impreza. The WRX was wrecked beyond repair but still ran , shifted, moved etc. The 02 impreza had a blown engine but was rust free When I went to start the car after the swap it sounds like a car that the timing is off. It cranks then has a distinct lag, no backfire though then cranks normal again. Doesn't "lag" everytime but 9/10 times it does Similar to when you install the wrong crank gear/ cam gears on the 2.5 sohc. Any ideas where to start? Edited January 3, 2016 by logic23 Quote Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted January 4, 2016 Share Posted January 4, 2016 CEL on? scan for codes - could be in 'limp' mode? Quote Link to comment Share on other sites More sharing options...
Fairtax4me Posted January 4, 2016 Share Posted January 4, 2016 Battery fully charged? Wrong timing gears? 1 Quote Link to comment Share on other sites More sharing options...
Cougar Posted January 4, 2016 Share Posted January 4, 2016 Make sure all the engine and chassis ground connections were connected as they should be. A number of folks have had troubles due to that when making changes like you did. 1 Quote Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted January 4, 2016 Share Posted January 4, 2016 wonder how long it sat? how old the timing belt and rollers are? you might consider inspecting for slipped timing, and dropping the exhaust to look for 'dropped' valve guides. Quote Link to comment Share on other sites More sharing options...
logic23 Posted January 8, 2016 Author Share Posted January 8, 2016 Thanks all for your help. There were 2 issues going on: stuck tumbler valve(drivers side) and i had the coil pack wires switched on the passengers side. The stuck tumbler valve was putting it in LIMP mode. Once i replaced the bad tumbler valve postiton sensor ( front of engine) the valve opens and closes and no code Then the car tried to run and I got cylinder missfire codes. Checked the injectors and coils. thats when i discovered that I put the wires on backwards. She now purrs like a kitten. Should have this on the road soon. its a 2001 wrx with 103K into a soild no rust impreza outback with 278K on the body. upgraded to 04 larger front brakes. tein coilovers. Ill take some pics when shes all buttoned up. Thanks again crew Quote Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted January 9, 2016 Share Posted January 9, 2016 needs timing belt service. Quote Link to comment Share on other sites More sharing options...
logic23 Posted January 11, 2016 Author Share Posted January 11, 2016 I did the timing belt, water pump and all 4 tensioners while the engine was out.. Quote Link to comment Share on other sites More sharing options...
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