Question about 1994 Chevrolet Caprice Classic

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1994 chevy caprice knock sensors problems

I have tried everything and still getting code 43

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  • marcus_lee75 Apr 30, 2010

    im lost i changed the computer and everything any one help me please

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

txkjun
  • 409 Answers

SOURCE: 1993 full size blaser 5.7 code 43

Check for a 5 volt reference signal at the wiring to the knock sensor. With key on engine off one of the wires to the sensor should have 5 volts.

Posted on Dec 26, 2008

Toyota Guy
  • 42 Answers

SOURCE: Location of knock sensor on 1994 toyota 22vre engine

The Knock sensor on a 22re is located under the intake manifold on the engine block. to the upper left of the oil filter. With is the passenger side of the engine. I believe it is yellow in color. Not do be confused with the oil pressure sensor which is close by. The knock sensor has a larger electrical connector. Good luck it can be hard to get to.

Posted on May 06, 2009

  • 366 Answers

SOURCE: Knock sensor location

if its a cmfi or csefi injection system theres 2 knock sensors 1 on each side of engine block,1 under the left bank of block,the other under right bank of block,tbi inj. theres 1 in front of starter.

Posted on May 28, 2009

ronaldo_ross
  • 1056 Answers

SOURCE: Looking to replace honda pilot knock sensor

These knock sensors are hard to get into. If thats a V6 it is underneath the intake manifold. make sure you cover the intake port when you take it apart, so a screw or a bolt don't accidentally drops in there.

Posted on Jun 28, 2009

  • 1 Answer

SOURCE: cannot read trouble codes on 1994 chevy caprice

I am having the same problem. I was able to get the twelve code to come up after actually turning on the ignition and attaching the code scanner. It flashes 1 repeatedly after that, so I'm really not making any progress either.

Posted on Apr 07, 2010

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Hi, the indication is that your computer is not receiving a good signal from the knock sensor. Recommend you check the connector on the sensor and the wire. Also make sure the sensor isn't loose in the block. If those look good, you may want to just replace the sensor. A new one is $30 at autozone. Without the knock sensor signal, the computer will default the ignition timing toward a less fuel efficient value. The sensor looks like the picture below and is mounted in the engine block. You may have 2 knock sensors--one on each side of the engine. Sorry, but I could not find a good picture of the location. I will keep looking for one, though.

jturcotte_426.jpg

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1 Answer

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Should clearify by providing engine info. However, this will likely be what you need...

Code 43:
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