vintagecamping

Vacuum update: I checked it with a smoke machine and found no leaks. The vacuum gauge shows 21 hg cold (1-2 lbs flutter) warm 18 hg ( 2-3 lbs flutter) The exhaust smells lean. I wonder if the pcm needs a reflash?

Thanks everyone for using your brains on this one. I'm swapping the map out with buddys forester tomorrow. I scoped out the knock sensor by hitting the block with a hammer and saw the signal get larger the harder I hit it. The motor mount and trans mount seam a little loose in 4th gear full throttle stab there is movement in the shifter about a inch. I will rescope it while driving and see if it is picking up the bang in the mounts. I did drive it with the knock sensor unplugged and it may no change other than kicking a code for it.

Removed and cleaned the idle control valve. No change. New pcv valve and hose last year, checked valve yesterday looked good not plugged.

No change unplugging the A/F sensor Still bucks still idles poor.

Good idea.

No change after battery disconnect. Dealer wires are the next step... I will try driving it with A/F ratio sensor unplugged.

Codes once for misfire on #3 and #4 but has not returned. I just unhooked the battery for 30 min for a hard re learn we will see.

I have been troubleshooting this car for three days and want to burn it to the ground. 2002 outback 2.5 137k manual trans. Headgaskets replaced @ 130k (dealer) front A/f ratio sensor @132k (dealer) Alt 120k (dealer) Ok the car has a poor idle and wants to stall / buck from a stop. At freeway speeds it has surges at 2500. Work performed today: Valve adjustment new ngk plugs new coil (aftermarket) new plug wires (aftermarket changed twice 2 brands) cleaned throttle body Inspected and adjusted tp sensor no codes performed cylinder ballance test (miss not following cylinders) new fuel filter fuel pressure 33 unplugged fuel pressure sensor pressure 39 squeezed off fuel pressure return line (pressure rose to 70) no change to miss Dont know what to try next! Thanks for the help

I have a 2002 vdc with 216000 miles. Never had any trouble, runs fine. How many miles can you get out of this engine? How many miles on yours? Thanks Marc