I just reinstalled my 2.5 motor in my 00 legacy L with manual trans. Here is a list of changes.

 

Head gaskets oem both resurfaced heads, no warp just to clean them up.

Oem timing belt w/ all rollers and tensioner

Oem air filter

Oem fuel filter

Oem thermostat

Oem hoses

Oem reseal kit

Exedy replacement clutch/pressure plate/bearings

Oil change oem filter

Subaru coolant/ di water

Oem water pump

 

I installEd the motor yesterday and it started at a tap of the key and runs very smooth and very quiet. Today I started it and runs great, but the idle is very low 4-500 rpm runs smooth just low. The battery has been unhooked for weeks and a lot of new parts. Does the computer have to "relearn" driving habits? I don't have a CEL at least not yet. I drove it around the block a few times, and let it idle for about 30 minute while adding coolant.

 

Any suggestions on what to check? The idle was fine before all the changes

 

Geo

Edited June 16, 201114 yr by Rpm90001

Did you not disconnect the battery while you had the engine out?

 

Double check all of your vacuum and breather hoses for connection.

I've found the computer does sort of need to re-adjust. But it usually idles high, not low.

Yes, battery disconnected for about 1 month. I will check again, but I only had to disconnect 3 or 4 lines. Brake booster, pcv, and 1 to air box. I will Check again. It runs very smooth, just low idle

 

Thanks for the help

 

G

Update..I put the car on the road today, car runs and drives like a dream, when I put the clutch in at a stop sign or red-light the idle drops to about nothing almost stalls then will rise to what I would say is normal rpm. It takes a few seconds for it to get back to normal. No CEL I drove it 30 miles, town and highway driving. Anyone have a suggestion on where to start looking?

 

I did change the knock sensor due to p0325 code, bought the car that way. Help me figure this one out. I did not drive the car before I bought it, but dont remember it having an issue. Runs great, just almost stalls when coming to a stop.

 

Also, I don't think it's an issue, but the 1/2 tank of gas is 3 months old. I bought the car 3/11/11 it's the gas that came in the car.

 

Thanks,

 

G

Edited June 20, 201114 yr by Rpm90001

Is your speedometer working properly? Any codes like p0500?

 

I was having a VSS issue that was causing my car to stall when I pushed in the clutch.

Sleek works perfect and still no codes. Thanks