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Old March 30th, 2009, 01:20 AM   #1
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runs but lke poop when watching timing with scanner just to 60 something degrees to 10 to 35 all over only code is knocksensor knock sensor doesnt control timing? or am i wrong?
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Old March 30th, 2009, 08:59 AM   #2
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it dosent control the timing, the pcm does that, it is however an input to the pcm, if it detects pinging or knocking the computer will retard the timing.
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Old March 30th, 2009, 07:13 PM   #3
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Do you have a check eng. light on? If so there must be another code.

If not, check the hoses around the air intake/filter. Sometimes they get knocked off when checking the air filter. I have also see the filter box not installed correctly and pulling in unfiltered air and causing maf problems. I would pull the maf out and spray it off with some brake cleaner.


The knock sensor code will not cause ck eng light. Sensor is in valley under intake, but it will be ok. Resistance in a connector fools the pcm. On the pass side of the upper intake there are some connectors for the engine harness. There is only one white wire in these connectors. Cut the white wire on both sides of the connector and splice (solder and shrink tube!) the wires to bypass the connector, and it won't set that code anymore. No, this isn't hacking it up, there is a tsb on this procedure.

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Old March 30th, 2009, 11:08 PM   #4
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light is on this is first code is the knock sensor and has one 02 sensor what would make the timing arratic? its all over the place. the warmer it get the worse it runs.
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Old March 31st, 2009, 05:13 AM   #5
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Ignore the knock sensor code for now, it won't cause running problems. Diag. the o2 sensor code.

If you are watching the timing on the scanner, what you are seeing may be normal esp. if it is running bad. The PCM moves timing around after looking at inputs from all the sensors.
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Old March 31st, 2009, 07:21 PM   #6
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alright imm get it over here tommorow and start in on it
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