I guess timing chain wear/stretch does tend to retard timing a little bit, but I've never seen numbers for it. VVT kicking in at the right rpms still?
I was messing around with my alternator so I had the battery disconnected for a while, and then by chance, I had 89 octane in the tank when I got the car back on the road, so I think the ecu relearned to run on the 89 and the car felt more peppy for a while until I went back to 87 octane.
Maybe try a tank of higher octane and reset the ECU, see if something is causing the engine to pull timing?
Try an italian tune up, a dozen WO pulls from 2500rpm to 7000, and engine braking down in 2nd gear might clear some carbon out that's causing some ping and timing pull?
How is your air filter? With no oil burn, your cat is probably good.
Feel all the hubs and brakes after driving. I had a brake drum dragging a bit which took me a while to notice
I was messing around with my alternator so I had the battery disconnected for a while, and then by chance, I had 89 octane in the tank when I got the car back on the road, so I think the ecu relearned to run on the 89 and the car felt more peppy for a while until I went back to 87 octane.
Maybe try a tank of higher octane and reset the ECU, see if something is causing the engine to pull timing?
Try an italian tune up, a dozen WO pulls from 2500rpm to 7000, and engine braking down in 2nd gear might clear some carbon out that's causing some ping and timing pull?
How is your air filter? With no oil burn, your cat is probably good.
Feel all the hubs and brakes after driving. I had a brake drum dragging a bit which took me a while to notice