Timing off CEL code and rattle
3 Attachment(s)
Hi all. I posted initially on this a few months ago. Here is the post if your interested: https://www.audiforums.com/forum/b5-...2/#post1430778
Finally got around to pulling the front end and valve cover off to check the timing. Here are pictures: Attachment 26479 Attachment 26480 Attachment 26481 Timing looks spot on to me. Let me know if you disagree. I got a different code reader and now the code that is popping is P0011: P0011 - Bank 1: Camshaft A (Intake): Retard Setpoint not Reached (Over-Advanced) . I also get a rattle usually at mid rpm's that sounds like it is coming from the back of the vavle cover (timing chain) I saw no indication of wear on the valve cover or head that I could see. The rattle seems to occur when the car is warmed up more and also don't do it as much on new oil. I'm wondering if I have an oil pressure issue due to sludge and the timing tensioner is getting slack causing the rattle and the timing off code. I have run the first course of autorx and am now in the rinse phase. No change. I think my next step is to get a oil pressure gauge and see where I'm at. Any input would be appreciated. |
Your timing chain tensioner is either on its way out or isn't getting enough oil, that would explain the P0011 and rattling.
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timing looks fine to me. check oil pressure and report
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forgot to mention I did replace the timing chain tensioner. That was my first suspiction too. I used one of these cheap ones: http://www.ebay.com/itm/VW-AUDI-1-8T-Timing-Chain-Tensioner-058109088K-/290920745410?pt=Motors_Car_Truck_Parts_Accessories&hash=item43bc3a49c2&vxp=mtr
Car behaved exactly like it did before I replaced the tensioner. I also replaced the front cam position sensor since they are cheap. I'll see if I can get an oil pressure gauge that will work. Will one of the loaners from autozone fit? Looks like it threads in in a spot on top of where the oil filter mounts. |
OK.I have tested my oil pressure. Here are the results:
Cold: Idle 50 psi 2K RPM 65 psi 3K RPM 75 psi Oil at 175 degrees idle: 17 2K rpm 40 psi 3K rpm 55 psi Seems low. What do you guys think? Thanks for the assistance. |
thats about what my pressure is. you could try running 15-40. it may help
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Here is a video of the noise coming from the engine:
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Curious
How did that tensioner work out for you?
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It did the trick. I still here a slight buzz sometimes at startup and certain low rpm's. Usually when I am getting close to oil change time. I think it was always there, I just now have a sensitive ear for it.
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Timing Chain tensioner fixed the rattle but didn't fix the P0340 code. Finally figured out that the timing chain that connects the cams was stretched. I replaced the chain and no more code and got some lost power back too. Hope this helps someone in the future.
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