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#4518276 - 09/17/17 12:14 AM P0328 code - 2004 Sienna
NJC Offline


Registered: 04/28/05
Posts: 3004
Loc: Vancouver BC
2004 Sienna @ 260K KM's throwing P0328 code. I haven't seen anything specific for this vehicle. This has me stumped, and I'm not confident replacing the knock sensor will solve problem.

Quote:
P0328 Knock Sensor Circuit High Input

A P0328 code is a generic DTC, thus it applies to all makes of vehicles, and refers to a high output voltage of the knock sensor. In many cases, this means the voltage is above 4.5V but that specific value depends on the specific make and model of vehicle. This code refers to the sensor on bank #1.

https://www.obd-codes.com/p0328

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#4518283 - 09/17/17 12:38 AM Re: P0328 code - 2004 Sienna [Re: NJC]
NJC Offline


Registered: 04/28/05
Posts: 3004
Loc: Vancouver BC
For those searching for codes 3MZ-FE codes P0327, P0328, P0332 and P0333, the following link has information:

http://highlanderclub.ru/files/manual/04/21j6774i/cip0325.pdf

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#4518284 - 09/17/17 01:07 AM Re: P0328 code - 2004 Sienna [Re: NJC]
TheKracken Offline


Registered: 04/18/17
Posts: 515
Loc: Fort Worth TX
Never had that issue on my 04 sienna. I will keep an eye on this thread though
_________________________
2011 Prius 96k miles RLI 5w20
97 Toy T100 4x4: amsoil 0w20 242k Miles
04 Toy Sienna awd: Pennzoil 0w20 281k Miles

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#4518345 - 09/17/17 06:53 AM Re: P0328 code - 2004 Sienna [Re: TheKracken]
Kira Offline


Registered: 08/19/10
Posts: 5208
Loc: Champlain/Hudson Valley
Interesting stuff in the Toyota manual.

I'd bet my ~$120 (RockAuto price) that it's the sensor.

The 4 sensor codes I've pulled have all been bad sensors only.

Not conclusive I know but it's what I'd do.

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#4518347 - 09/17/17 06:55 AM Re: P0328 code - 2004 Sienna [Re: NJC]
i_hate_autofraud Offline


Registered: 05/19/16
Posts: 705
Loc: Canada

I'd look at the wires and connector at the sensor.

Is it a single wire sensor?
Cycle the connector, inspect and clean contacts as needed.
It could have a bad ground thru the mount threads, unscrew, clean threads, put back on.

More then 1 wire to the sensor?
Ditto above. Circuit may or may not rely on a ground at the sensor, try and see.

If nothing works:
You may need a sensor. If it's pricy, hold off as you search for answers.
Call the dealer parts guy and see if they have "lots" in stock or if they have to order
it.

Getting casual comments from the parts guy like, 'never had a problem', 'we order
these on a regular basis' or 'there's a new version', etc will be a clue that can help.

Over the yrs I've ID'd weak parts and got spares that allow me to run a car 10-20 yrs
on! and on the cheap without getting gouged! smile

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#4518365 - 09/17/17 07:27 AM Re: P0328 code - 2004 Sienna [Re: NJC]
tnt31 Offline


Registered: 10/09/05
Posts: 306
Loc: TN
If you have not done so I would clear the code and see if it returns, while you continue to research possible causes, since it does not seem to be something needing immediate attention.

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