Just replaced timing belt, water pump, two pulleys, and cam/crank seals. Vehicle runs great, however soon shows a solid MDTC P0018 CRANKSHAFT POSITION - CAMSHAFT POSITION CORRELATION (BANK 2 SENSOR A). Using scanner, ignition timing will steady at 15 degrees for nmaybe 5 minutes, then jumps from 8-9-10-8-9-8-10 and is very random. This is when the code sets. I've tried flipping the belt reverse and re checked the timing. I also tried replacing the crankshaft pos sensor.
Need Help! P0018 keeps returning after timing belt replacement. Need to diagnose on 2004 Toyota Sienna
by rhettwhitehill in Redwood City, CA on July 13, 2012
ANSWER by ziptie12 , July 27, 2012
Souns like one of your cam gears is off a tooth .When you did it did you have a guide on how to set those gears correctly I believe one on each bank is spring loaded for the variable valve timing . The last one I did I had to put a small bolt in the back of them to lock them before taking the old belt off. I believe I did this because I learned about it the same way ......After haveing trouble -- but yes the engine seems to run good. good luck.