Running out of time. HELP !!!

[gyuunuuya]

Gas mileage has always been horrable on the car not bad, I mean horrable like 12 MPG, with a light foot

92 Subaru legacy AWD non turbo wagon Automatic.

 

I've done many things to try to fix this problem.

 

1) Replace air filter

 

2) Mass air flow sensor

 

3) O2 Sensor (the one by the exhaust manifold)

 

4) Spark plugs

 

5) Seafoam straight through the injection with a tube and the can.

 

6) tire pressure and new tires

 

7) Oil changes

 

8) Replaced coolant temp sensor and sending unit

 

 

9) Replaced PCV

 

10) My wife has to smog the car since regestration is due, but of course if failed. :dead::dead:

 

HC (PPM)

 

Idle

Max = 120

Measured = 230

2500 RPM

max = 140

Measured = 15

______________________________

 

CO

Idle

Max = 1.00

Measured = 1.65

2500 RPM

Max = 1.00

Measured = 0.05

 

 

If your have any other suggestions as to what I can do plz let me know.

 

Also I took it to a place around here that deals especially in subaru's and the guy told me to put better gas in it and run injector cleaner through it to see if that helps. So I ran like he had the frigin ebola virus. No one around here has any idea about subaru's even the guys that claim they specialize in them. You guys are my only hope.

 

This is from a previous posting that never got replied to.

 

Ok I changed out the PCV and the coolant temp sensor as well as the coolest temp sending unit underneath the temp sensor.

 

I plugged in the black connectors and got 2 error code readings

 

1 ) Bad coolant temp sensor

 

2) Bad cam angle sensor

 

anyways after I changed the coolant sensor 2 things happened.

 

1) check engine light is solid on now with no codes.

 

2) even in the cold morning if u turn the car on and drive 1 block maybe about 1/4 mile or less the car is already fully heated up. like within 1 min of starting the car.

 

Also tonight I took apart the IAC unit and noticed when I disconnected the PCV valve all the tubed are gunked up with gunk. Not like where air can't get through but nice cake build up on sides of tubing.

 

I also looked at the injector rings to see if they were leaking but I didn't see anything wrong with them.

 

Gas mileage is still crap any clues???

 

PLEASE DEAR GOD PLEASE!!!!!!!!! :banghead::banghead:

[nipper]

How many miles on this car