Quote:
Originally Posted by rice_classic
Ok, so I finally replaced my failed cam sprocket with a brand new on but I need to swap the engine back into the car to test. In the meantime I decided to tear apart the old sprocket.
Why did I replace the sprocket? I swapped the OCVs - code didn't follow (not the OCVs). I swapped the sensors, code didn't follow (or change) which rules out sensors. I swapped the engine and the code was gone, car ran great which rules out ECU. I also ran techstream and saw 3 of the 4 sprockets were producing values while the 1 sprocket was producing 0.
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Quoting myself as a means of updating. @
Ultramaroon, @
NoHaveMSG - maybe one of you guys can share insight.
I swapped back in my "new" engine because I had installed a new Pass Side Exhaust Sprocket (P0017). When I fired up the engine the P0017 was gone!
Except - I now have a P0019 (Driv side exhaust sprocket). So I swapped sensors, swapped OCVs etc with no change. I opened tech stream to watch the Change Angle values and the Dr Side exhaust cam does nothing - nada. (I checked with no MIL illuminated of course, because there's no change angle when it is triggered).
So I pulled off the sprocket, tore it down, cleaned it out, reassembled with ATF and made sure nothing was clogged or "sticky" and reinstalled (5 hours later). Same exact outcome. So I pulled the sprocket off the working spare motor and swapped that in, SAME ISSUE - 0 change angle the sprocket but the other 3 are clearly changing angle. TechStream won't let me slew the sprockets either - gives a "parameters not met" error. 10+ hours of labor wasted.
I KNOW it's not the ecu, the learning values are fine and if I simply swap in the spare engine (like I did in Cali), everything runs perfectly. My suspicion is that there is a blockage between the Camshaft oil control filter and the Sprocket that isn't providing enough pressure in the sprocket to "lift" the plunger and allow the sprocket slew. My next step is to put the engine back on a stand, pull the cams/cam carrier and remove the oil control filters and blow out the passages and try again... Unless anyone else has a silver bullet.