I have been looking around with the same problems. I have a 2000 ES-300 code (P1354) is always there which I understand is for Bank 2 VVT/ OCV closer to radiator. I also get the misfire codes (P0300, P0302, P0304, P0306) I also got code (P1351) today for the first time, I have hard braking sometimes and have gotten ABS codes (C1271, C1272, C1273, C1274, C1275, C1276, C1277, C1278, C1201) which I beleive are related.
I already took the screen out and cleaned it which didn't look dirty but before I think about doing the VVT/ OCV I was wondering if you had to worry about messing the timing up or had to deal with the timing at all?
@vinniekhosla from the sounds of it in my searches the code (P1349) is for bank1 which is the one closer to the firewall.
Note: The check engine and trac off lights only seem to come on after the engine has been running at normal operating temps for awhile, this morning when I stopped at store I reset it and it came on in less than a block instead of 7-10mile in the below freezing weather we have been having.
UPDATE: I purchased part 15340-0A010 (for bank 2) from closest dealer for $88.53 and installed it two days ago. According to parts counter timming would not have to be messed with. All of my symptoms seem to have cleared up so far, all hesitations, poor running, vibrations, poor braking are gone so far. The old part I did not see any formation of sludge on it so I would assume it was the electronics that went bad in it. I will try to remember to repost an update in a month or so for this issue. Good luck with all who try to fix the P1354 code. The good thing was this bank for me only took about a half hour total (took air box out and one hose) but bank 1 looks like it would be a bit more to it and taking more out.
