Murthius Posted September 29, 2011 Share Posted September 29, 2011 So I just got a 96 OBW 2.5L Automatic and it's throwing a few codes, O2 sensors (P0135, P0141), knock sensor (P0325), and blocked EGR passage (P0400). I've read alot of threads about the P0400 code and almost dread the run around that may be associated with trying to fix the issue, but my engines performing quite poor so I am going to try everything to get it running better. I Haven't tried anything yet, just getting prepared and I was wondering, if it comes to cleaning out the vac lines, is it ok to just spray carb cleaner down the tubes and let the engine spit the gunk out the exhaust or will that make things worse? Or option 3, is that not even how it would work and I'm talking out of the wrong hole? Haha. Theres a host of other problems I need to tackle but so far I think this will be the most confusing, so if anyone has any info, it would be greatly appreciated! Quote Link to comment Share on other sites More sharing options...
lmdew Posted September 29, 2011 Share Posted September 29, 2011 Pull the valve and make sure it's working properly and not blocked. Check the intake to make sure it's not blocked. Remove the hard line head to ERG and clean it if needed and check the hole into the head. The Knock Sensor will make it run poor, so fix that one first. Quote Link to comment Share on other sites More sharing options...
Murthius Posted October 2, 2011 Author Share Posted October 2, 2011 Ah thanks. Hopefully the light stays off after I do that and clear the code, I've seen a lot of posts about the light coming back on after a few days even after getting a new valve and cleaning out every part involved lol hope that doesnt happen to me! Quote Link to comment Share on other sites More sharing options...
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