ididit

my car began throw 2 codes in the past 2 weeks.

P0330, P1354

I already replace OCV Bank 2(rear bank), clean IACV. but the P1354 code still exist. I still have misfire code P0300, P0302, P0304, P0306. What else can I do to erase P1354?

for P0330, I plan to use the trick introduced by Bobster999 to erase the code.

do you think erasing P0330 first will help erase P1354?

UPDATE: just replace another OCV bank(front bank--close to bumper), turns out that this one is the bank 2, the previous one is bank 1. I guess that I miss the point where to view the 2 banks.

now, code P1354 is gone. only P0330 left. I'll finish it tomorrow.

code58

Do you in fact know that the P0330 code isn't a valid DTC? You wouldn't want to erase it if it were valid since it could cause engine damage if there was no detection of knock if it actually existed.

ididit

Thanks for your remind. actually, it is the place that bothers me. based on Bobster999's method, it did fool the ECU. But then why do they set up this P0330 code? it should not mean nothing. if we fool ECU, what potential problem are we facing?

BTW, do you see my diagram reply to Bobster999's method? https://www.clublexus.com/forums/rx-...ck-repair.html

the last thread is mine. is it correct?

salimshah

Bobster has put in enough disclaimers. IN summary, you ignoring the sensor output with the premise that the sensor is producing wrong output. Please see my comments in the "Having problems start here mega thread" sticky on sensors.


Salim

code58

Both sensors are engineered into the picture because one sensor might not pick up the knock from either bank well enough to protect the engine completely. In Bobster999's case, I'm not sure he intended to leave it that way PERMANENTLY, but didn't feel like tearing into it at this time because it's a big job and he needed the car. The one sensor MIGHT be able to detect a serious enough detonation knock from the other bank or may not. You have to remember the purpose of the sensors is to adjust the timing to compensate for low octane fuel or serious lugging (say a 10 % grade) or other conditions requiring timing adjustment to prevent serious detonation (spark knock). If the sensors aren't working and it's driven that way, engine self destruction is the eventual end result. That's about a $7500. mistake. I wouldn't worry too much about doing it 999's way, but if you hear ANY detonation, put high octane fuel in and don't continue to drive it once you reach your (close) destination. It probably isn't a good PERMANENT solution.
Your ilustration is correct. STRONGLY consider not making it permanent though.

Victor520

code table: http://www.spobd2.com/service/diagno...wnload-38.html