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HELP ! Check engine light!

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Old Apr 28, 2009 | 06:48 AM
  #1  
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From: Myrtle Beach ,SC
HELP ! Check engine light!

94 toyota pickup 4x4 , I just tried driving to school 10 min ago and the check engine light came on. Soon as i tried getting up to speed on the hwy , the truck had almost no trottle response and almost tried cuttting off, I went very slow right back to the house.....help please
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Old Apr 28, 2009 | 07:12 AM
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ttt...
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Old Apr 28, 2009 | 07:15 AM
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Pull the stored code and see what that tells you:
- http://www.4crawler.com/4x4/CheapTri...CheckConnector

Hint: The link above tells you how to do that...

Last edited by 4Crawler; Apr 28, 2009 at 07:24 AM.
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Old Apr 28, 2009 | 07:21 AM
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how do i find out the code?
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Old Apr 28, 2009 | 07:22 AM
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Originally Posted by dcmbsc
how do i find out the code?
Click on the link that 4crawler posted and follow the instructions.........
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Old Apr 28, 2009 | 07:28 AM
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Originally Posted by Junkers88
Click on the link that 4crawler posted and follow the instructions.........
dont really understand it. I thought it was easy as pluging in a computer or something.
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Old Apr 28, 2009 | 07:32 AM
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Originally Posted by dcmbsc
dont really understand it. I thought it was easy as pluging in a computer or something.
The computer is already in the vehicle, you stick in the "scan tool":


And read the flashes on the CEL:
http://www.off-road.com/toyota/tech/codes/index.html
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Old Apr 28, 2009 | 08:04 AM
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From: Myrtle Beach ,SC
Thanks guys, I came up with got it working and I counted i think , the code 52 which is ...

52
KNOCK SENSOR SIGNAL--OPEN OR SHORT IN KNOCK SENSOR SIGNAL
--KNOCK SENSOR/CIRCUIT

ECU
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Old Apr 28, 2009 | 08:24 AM
  #9  
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where is the kock sensor on the motor?
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Old Apr 28, 2009 | 10:13 AM
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The knock sensor is between the heads. You have to pull the air intake chamber and the intake manifold to get to the knock sensor. If you're going to do that, then replace the knock sensor wire while you're in there. They get brittle over time.

If you search hard enough on here, you'll find links to a copy of the service manual for your truck (like this one). If you search even harder, you'll find the link to the actual section you need to get everything out of your way to get to the knock sensor (like this one). Your questions have all been answered on here many times.
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