xt2005bonbon Posted May 10, 2016 Share Posted May 10, 2016 Have you been logging roughness misfire per cylinder? Link to comment Share on other sites More sharing options...
MasAyinde Posted May 10, 2016 Author Share Posted May 10, 2016 Yes, but with a 12 lb flywheel, it's tough to tell what's actual misfires. Seeing a bunch at idle, alost none at speed. Link to comment Share on other sites More sharing options...
FJuan Posted May 10, 2016 Share Posted May 10, 2016 Gonna say check the timing 1st, because I had the same issue, and it was the timing. My wife's balls are delicious. Link to comment Share on other sites More sharing options...
MasAyinde Posted May 10, 2016 Author Share Posted May 10, 2016 When you say same issue, you mean AVCS all wonky also? Link to comment Share on other sites More sharing options...
FJuan Posted May 10, 2016 Share Posted May 10, 2016 Yes, I was one tooth off my upper cam gear which through the P0018 code. Just check the timing before you buy the new gear. My wife's balls are delicious. Link to comment Share on other sites More sharing options...
xt2005bonbon Posted May 10, 2016 Share Posted May 10, 2016 Yes, I was one tooth off my upper cam gear which through the P0018 code. Just check the timing before you buy the new gear. I also have to admit that I don't recall seeing someone reporting a p0018. So that looks like a rare type of code to be thrown. OP, when you say you've seen misfire counts at idle, which cylinders were throwing these? #2 and #4? Link to comment Share on other sites More sharing options...
MasAyinde Posted May 10, 2016 Author Share Posted May 10, 2016 Don't remember which cylinders, but two were definitely throwing the most. As long as it's not raining tonight I'm going to take the side timing covers off and see if the cam timing marks still line up. P0018 is a timing error between crank sensor and cam sensor. It can be caused by the AVCS being seized in an advanced position which would lead to the sensor being way off at low RPMs, or something with the timing having jumped a tooth. I'm wondering if the AVCS will still function even with a CEL, because I'm not seeing mine function at all. At least if I put new ones on and it still doesn't work, the OCVs will be easy to change since that will be all that could be causing it. Link to comment Share on other sites More sharing options...
seanyb505 Posted May 10, 2016 Share Posted May 10, 2016 Try switching cam position sensors? I'm not a smart man, but maybe the passenger side is stuck returning whacked out values? Link to comment Share on other sites More sharing options...
MasAyinde Posted May 10, 2016 Author Share Posted May 10, 2016 Well I'm checking/redoing the timing today. Already ordered a new belt and tensioner from Amazon. Best case scenario: timing is off and fixing it will get rid of my codes. To that end, I will be using my old belt and tensioner when I start my car back up to see if things have been fixed. If they have, I do the job all over again with the new belt/tensioner and make sure they're timed correctly. If not, I get new AVCS gears and put them on along with the new belt/tensioner. Cam/crank position sensors are next if that doesn't work. After that I'm selling the long block to someone who wants a simple fix and buying a new long block to drop in.   ...only slightly kidding Link to comment Share on other sites More sharing options...
xt2005bonbon Posted May 10, 2016 Share Posted May 10, 2016 After that I'm selling the long block to someone who wants a simple fix and buying a new long block to drop in.   ...only slightly kidding Link to comment Share on other sites More sharing options...
MasAyinde Posted May 11, 2016 Author Share Posted May 11, 2016 Update: checked timing and I was indeed one tooth off, but on the passenger side. The real problem was that the belt had stretched and there was so much slack that I could almost slip it off the tensioner. I could even lift it so it was completely off the tensioner. I put on a new belt using the old tensioner and the slack is gone. I was getting tired and it was getting dark. When I released the tensioner pin and turned it twice, it was 1/2-1 tooth off on the drivers side. I started the car and let it idle and saw that the left AVCS was now down to 11 degrees. After dinner, going to clear the P0018, go through two idling cycles and see if it comes back. I still have to put the new tensioner on, so I plan on getting the timing exact then. Just too dark to do it now. Link to comment Share on other sites More sharing options...
FJuan Posted May 11, 2016 Share Posted May 11, 2016 Exactly, getting the timing perfect is a bitch! I usually have to do it 3 times before it's perfect. That's why I mention look at the timing belt before wasting your money on the upper cam gear. Timing is everything......no pun intended. My wife's balls are delicious. Link to comment Share on other sites More sharing options...
MasAyinde Posted May 11, 2016 Author Share Posted May 11, 2016 Yeah, I used to be able to get it right. Gonna keep trying with the new belt/old tensioner until I get it right, then get logs. If it's happy, redo timing with the new tensioner. If still sad, order new cam gear. Link to comment Share on other sites More sharing options...
MasAyinde Posted May 11, 2016 Author Share Posted May 11, 2016 Update 2!!!!!! Cleared P0018 and let the car warm up to temperature. As soon as it got to temperature, both AVCS advance dropped to 0. Went through 4 idling cycles at temperature and CEL didn't come back, AVCS also stayed at 0 on both sides. The ONLY thing I'm seeing now is that when I rev the engine in 1st with the clutch all the way in, I'm only seeing one side AVCS respond, but I don't trust this reading until I get it out on the road and get some driving logs. Link to comment Share on other sites More sharing options...
xt2005bonbon Posted May 11, 2016 Share Posted May 11, 2016 Yeah. Get out on the road, put some load on the engine and observe the avcs do heir thing. Hopefully they are in sync now. Thanks FJuan for your suggestions. Link to comment Share on other sites More sharing options...
MasAyinde Posted May 12, 2016 Author Share Posted May 12, 2016 Left AVCS still stuck and not activating, even after switching the OCVs around. Checked the top banjo bolt and there's no filter, already took the filter out of the one on the front of the head. Between that and seeing oil spraying out when I loosened the top bolt at idle, I can only assume that it's the AVCS gear itself that I had disassembled. Ordering a replacement today, so hopefully that will fix my issues. The new timing belt is already making it feel much better. Link to comment Share on other sites More sharing options...
MasAyinde Posted May 12, 2016 Author Share Posted May 12, 2016 What's interesting is that I've gone through 6 driving cycles with a completely non-functional AVCS. Not seeing any FBKC and cylinder roughness is MUCH better after the new timing belt, but still no CEL. Do you guys know the logic behind the car throwing P0011/P0021? Link to comment Share on other sites More sharing options...
xt2005bonbon Posted May 12, 2016 Share Posted May 12, 2016 At what value is the left AVCS stuck at? And what does the right one show? Link to comment Share on other sites More sharing options...
MasAyinde Posted May 12, 2016 Author Share Posted May 12, 2016 Left is stuck at 0, going to 1 and 2 every now and then, seemingly randomly. Right one is in line what what's in the map for AVCS advance Link to comment Share on other sites More sharing options...
seanyb505 Posted May 12, 2016 Share Posted May 12, 2016 Did you switch cam position sensors between sides? Link to comment Share on other sites More sharing options...
MasAyinde Posted May 12, 2016 Author Share Posted May 12, 2016 I did not. Is that where the ECU gets AVCS readings from? I thought a bad cam position sensor would throw a code. Link to comment Share on other sites More sharing options...
seanyb505 Posted May 12, 2016 Share Posted May 12, 2016 Yeah I think you're right there is a code for bad cam sensor. Maybe it's not bad enough? My thinking if I understand correctly, is that the ECU determines when and how much avcs system activation. The the OCV is told that info, and the cam position sensor is checking up on the physical side of things - did the cam do what it was told? Â You're probably right, though I don't think it would hurt to switch sides just to make sure. Â Either way, I'm curious to see what's going on in your current cam gear. I reassembled a spare pair, then got a p0011. Then I cleaned my old gear, put it back on, and the code never came back. The spare gear I used that triggered the p0011 didn't appear to be seized in any way upon further inspection. Link to comment Share on other sites More sharing options...
MasAyinde Posted May 12, 2016 Author Share Posted May 12, 2016 Wouldn't hurt YOU to switch sides. It would hurt ME. It's tight in there and I value the skin on my fingers and knuckles. I'm going to just order a new cam gear today. Link to comment Share on other sites More sharing options...
xt2005bonbon Posted May 12, 2016 Share Posted May 12, 2016 ^ Link to comment Share on other sites More sharing options...
FJuan Posted May 12, 2016 Share Posted May 12, 2016 I'm still wondering why you still think it's the cam gear. Is the cam gear leaking? Was it damaged in anyway during install? My wife's balls are delicious. Link to comment Share on other sites More sharing options...
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