Subarian Posted October 28, 2006 Share Posted October 28, 2006 I've had an intermittent check engine light for a while, and it wasn't causing drivability problems. Lately the mileage went down, and then it started to run rough. I figured maybe the O2 sensor, so I checked the codes and found 32 and 35 (O2 and Purge Valve). I checked the purge valve and it seems to be fine. I bought a new O2 sensor at Autozone (Bosch universal) and installed it. Cleared the codes by removing the ECM fuse. When I started it, it ran up to fast idle fine for about 15 seconds and then died. I tried it several times with the same result. I connected the black OBD connectors again, and now the CEL just flashes continually. I checked continuity on the O2 sensor lead, and it seems to be OK. I could use some ideas. Quote Link to comment Share on other sites More sharing options...
tcspeer Posted October 28, 2006 Share Posted October 28, 2006 Did you check the reading of the new code? May not be the same codes as before. I would check the areas you worked near while checking the Purge valve and installing the 0-2 sensor you may have knocked a vacum line off or unpluged something. I've had an intermittent check engine light for a while, and it wasn't causing drivability problems. Lately the mileage went down, and then it started to run rough. I figured maybe the O2 sensor, so I checked the codes and found 32 and 35 (O2 and Purge Valve). I checked the purge valve and it seems to be fine. I bought a new O2 sensor at Autozone (Bosch universal) and installed it. Cleared the codes by removing the ECM fuse. When I started it, it ran up to fast idle fine for about 15 seconds and then died. I tried it several times with the same result. I connected the black OBD connectors again, and now the CEL just flashes continually. I checked continuity on the O2 sensor lead, and it seems to be OK. I could use some ideas. Quote Link to comment Share on other sites More sharing options...
porcupine73 Posted October 28, 2006 Share Posted October 28, 2006 Hm...what model and year is this Subaru? I don't know all the codes that can cause a flashing CEL but cam position sensor too out of sync with crank position sensor is one of them, which could be caused by a few different things. Quote Link to comment Share on other sites More sharing options...
Subarian Posted October 29, 2006 Author Share Posted October 29, 2006 Sorry, I broke rule no. 1. It's a 94 Legacy SI 2.2 AWD automatic. I got it running, and now it's throwing a code 35 again. It's backfiring and running rough off idle, but runs OK at higher engine speeds. I tried blocking the vacuum port the purge control valve pulls off of. That made some difference, but it still doesn't run right. Quote Link to comment Share on other sites More sharing options...
Cougar Posted October 29, 2006 Share Posted October 29, 2006 I would check for vacuum leaks. The manifold gaskets may be leaking. Check to see if the purge valve has continuity. The coil may be open. Quote Link to comment Share on other sites More sharing options...
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