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Olnick

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    98 Legacy Outback no fans on AC and P0441

    in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX

    Posted

    As a follow-up, yesterday GD worked on the car ('98 Outback with a '95 EJ22 swapped in).  He sent me the following:

     

     

    The EVAP purge flow (P0441) was due to a small vacuum routing error on the 2.2 swap. Both sides of the purge solenoid were connected to manifold vacuum so it was "purging" all the time. 

     

    The (very strange) P1502 "fan control circuit high" code was due to a failed engine computer. Funny how the computer fails internally and triggers a code pointing the finger at the "circuit" when in fact the computer itself was at fault. Took me all morning to trace that down. First time I've seen that circuit die. I had a used ECU of the same part number in my collection and the sub fan is working normally now.

     

    I cannot find a cause for the random P0303 and P0302 (neither were present when the car arrived). It runs ever so slightly rough at idle despite having 195 to 200 psi compression on all 4. I checked valve timing, checked for fuel pressure and drop off (injector leakage), and did a smoke test for vacuum leaks. I cannot determine a cause for the slight roughness but it is probably the cause of the random cylinder 2 and 3 misfires. I suspect there is an imbalance situation between the flywheel and pressure plate, etc. Pressure plate may need to be clocked differently on the flywheel. There doesnt seem to be any other directions to go with the diagnostics for those codes besides throwing a crank sensor at it, or doing a clutch and tossing in a known good flywheel. Being the codes did not present on his drive down to me I suspect he will go through the WA state emissions test without much problem. It is also possible that the failed ECU was responsible though I doubt it. 

     

    Rick

     

     

    A Big Mahalo to GD and Larry Dew for all their efforts.  Aloha!

    Engine cranks but won't start

    in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX

    Posted

    Just want to say a big Thank You for this thread.  My son's '98 Outback fuel pump died Friday so, with the valuable info in this thread, he ran to a Pull n' Pay Saturday and got a used one.  It was obviously a replacement, shiny & clean.  Paid $36!  Put it in Sunday and works like a charm.

     

    Today, just for the hellofit, he called a dealership and priced a new pump:  $520 plus estimated $220 for installation!  (My son thanks you too!)

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