P0330 Knock Sensor, 15 min. Hack Repair...
#287
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Still the most popular thread ever
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Bobster999 (08-06-24)
#288
Driver School Candidate
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This is for the people that don't want to pay big money to replace a bad knock sensor. I got the dreaded P0330 code saying the #2 knock sensor circuit was bad. I was driving 46 miles each way to work and had to stop and reset the light before I could there because she went in limp mode and I would lose overdrive. I just had to remove all of the same stuff to replace my leaking valve covers just a couple of months ago. I did not want to do that again. The ecu is looking for a small voltage between a set range to decide if that is normal and won't throw a code as long as it sees that voltage for each sensor. So I decided that since there are 2 sensors, and only one is bad right now, I will just feed both sensors from the good #1 bank sensor and the ecu will be happy. So i cut the wire feeding the #2 sensor and spliced it into the #1 sensor at the ECU. Anyway, it took me 15 mins and NO money to fix it. She drives as good as ever and no more CHECK ENGINE LITE. Im not telling anyone to do it, im just telling you what i did so you do what you will or won't.
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#289
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There are pictures in the thread
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Bobster999 (08-06-24)
#290
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I believe what he was saying was the wire going to the # 2 sensor (the bad one)was cut and the end leading to the sensor would be left "hanging" (disconnected) and the remainder of the wire (going to the ECU) was piggybacked onto the # 1 wire so that the input to the ECU would fool the ECU into thinking BOTH sensors were good. (when in fact #2 was now cut out of the picture because it had decided to lay down on the job) Moral of the story: don't lay down on the job or you'll be cut out of the picture and someone else will be fooled into doing your job and theirs too! ![Big Grin](https://www.clublexus.com/forums/images/smilies/biggrin.gif)
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#291
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The instructions were great with the pictures and notes. I completed the hack. My 2001 Lexus RX300 was giving the P0330 code. The hack It allowed it to change into 4th gear however the engine light and VSC light came back on after around 20 miles. The P0330 code is gone. There is now a P1351 code after the hack. The car runs great with 193k miles. I just had the timing belt, water pump, belt, alternator replaced. The P0330 code was still on after that work. I decided to try the hack, like everyone else I don't have $ for the replacement of knock sensors. Any reason this new code P1351 is on now after the hack? I am new here. I've tried to find other information on this code in the P0330 hack thread but can't find anything. Your comments, help is greatly appreciated.
#292
Lexus Fanatic
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P1351 is telling the you oil control valves are not doing their job. Search this forum for P1351 also see this thread
https://www.clublexus.com/forums/rx-...ement-diy.html
That code doesn't generally show up when the knock sensors are bad because the ECU is not doing full cam phasing when you have a CEL.
https://www.clublexus.com/forums/rx-...ement-diy.html
That code doesn't generally show up when the knock sensors are bad because the ECU is not doing full cam phasing when you have a CEL.
#293
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Thank you for the reply. I disconnected the clear white and black wire, then reconnected just to make completely sure that was not the issue. I am reading the other thread you sent for the P1351 code. .
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