Error code P1345

Thanks for your quick reply, I was going to get the oil changed again in a month with a flush to remove any deposits.

With the squeal from the crank pulley is it better to replace the rubber or get a whole new pulley?

Did you ever resolve your 1345 error. I have almost identical symptoms on a 2003 corolla 1.4 with 80K. I diagnosed a stretched timing chain, therefore worn sprockets, so I replaced all sprockets including VVTI actuator, control valve and tensioner along with the water pump (as I had it stripped down), serpentine tensioner pulley which had noisy bearing, serpentine belt which had cracks. Oil pressure 55psi at startup idle falling to around 6psis when hot, rising in sympathy with throttle position. Flushed engine, replaced oil with 10W30 synthetic and replaced oil filter. Engine sounds fine at start up and idle, runs lovely until engine is well warmed-up (hot). No oil warning lights during flushing procedure. Still get the error code when engine hot, no problems until it is hot (4mile run). With the new oil and filter I have had the oil light come on solid. Let it cool a little and the oil light stays off for repeated starts and warm-ups. The VVTI can be cancelled and will stay cancelled until the engine is properly hot again. VVTI solenoid filter is fine. Old sump oil looks fine (used). VVTI appears to operate correctly as the timing is advanced and retarded as expected and indicated on OBD 2. Now at a loss, any ideas?