93 camry v6 code 52 - Toyota Nation Forum : Toyota Car and Truck Forums
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#1 Old 02-13-2010, 11:02 PM
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3rd Generation 93 camry v6 code 52

Hello again, The Toyota dealership tells me my CEL is a code 52. Would that indicate that 1 of the 2 knock sensors/wiring are still OK?

I am considering stripping the insulation from both knock sensor wires and connecting the wires together, to see if that turns the CEL off.

Just bought this car 'as-is' a little over two weeks ago. Great car, just needs a little TLC.

Several other things still need repair, and I don't want to pull the intake yet.

Just want to know if connecting both sensor wires together may work. Thank you
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#2 Old 02-14-2010, 12:26 AM
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Yup, DTC 52 means knock sensor #2 (left bank sensor) is hosed.

I don't think you can use the output of #1 to go to both inputs on the ECU -- the knock sensor has very low output, and it probably would go too noisy. Not certain, 'tho.

Might want to try relocating sensor #2 to someplace more convenient. I've seen a post on that for the 1MZ (1MZFE - Tips on Changing Valve Cover Gaskets and Relocating Knock Sensors ) same principle might work for the 3VZ .

Last edited by hill8570; 02-14-2010 at 12:27 AM.
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#3 Old 02-14-2010, 11:21 AM
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3rd Generation

I'm going to give it a try. Since I plan on replacing the wire and both sensors if I pulll the intake, i've got nothing to lose?

I have heard several ways to clear the codes, please tell me what really works.

I would prefer to remove the EFI fuse. How many minutes should it be removed?

Thank you
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#4 Old 02-14-2010, 11:33 AM
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Just remove the EFI fuse for several seconds - will be enough.

Camry Sedan 1996 LE V6 1MZ - 170 Kmiles
--------------------------------------------------
FOR SALE, Sedan/Wagon parts

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#5 Old 02-14-2010, 12:10 PM
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I combined the two wires and the light went away. Do you know how many miles per gallon you're getting right now? Mine has been getting 13 mpg for the longest time.



03 Max modded //sold
07 Camry XLE i4, all stock.
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#6 Old 02-14-2010, 06:17 PM
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3rd Generation

not sure of the MPG. probably not good. lots of idling while I work on it in a poorly heated garage.

long story......
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