i just wanted to introduce myself and ask everyone a question. when i first start my 90 legacy sdn. it will run rough and sputter for a few seconds and then straighten up. after that it will run fine until it sets overnight again. and will a exhaust off a 4wd fit on a fwd. thanks for the help.

anyone?

Is your check engine light on?

 

Don't have a difinative answer on the exhaust.

check http://bbs.legacycentral.org this is THE place for questions about your old legacy

Have you checked to see if there are any codes stored in the ECU? Instructions are on my site how to pull the codes.

 

As for the exhaust, yes AWD exhaust will fit on a FWD.

i got a code 13(cam angle sensor) could this be the problem

I sort of doubt it.

 

Can you describe in more detail exactly what happens.

the last time it did it , it sounded like it was misfiring and the whole car shook really bad. i hit the gas and it just died. started it again and it ran like new. if i let the gas pedal alone most of the time it straightens up after about 10 seconds. after that it starts fine until it sets overnight.

 

their was no check engine light but i checked for a code anyway and got a code 13

Cam sensors on early Legacy's aren't a common problem. More likely the coolant temp sensor.

the last time it did it , it sounded like it was misfiring and the whole car shook really bad. i hit the gas and it just died. started it again and it ran like new. if i let the gas pedal alone most of the time it straightens up after about 10 seconds. after that it starts fine until it sets overnight.

 

their was no check engine light but i checked for a code anyway and got a code 13

 

My legacy did this too. It would stumble and sputter if I touch the gas pedal upon start up. If I let it idle for a few minutes, it'd be fine.

 

You can try the coolant temp sensor, however I'm not sure that's the problem.

 

Try running some injection cleaner through the tank. If you can find some seafoam, www.seafoamsales.com run a can of that in the tank.