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CONIG
Dodge Dakota
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6/06/2002
17:46:06

Subject: CW crank position senor 4.7l ????
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Since the 4.7l crankposition sensor can not be moved to modify base ignition timing, hoe does the sensor send the signal to the engine? since it is not constant can it somehow be manipulated with eather a resistor, capacitor, or other device to advance the timing,or so the computer reads it moderately different so it sees a false signal that would cause it to advance/ retard the ignition timing?

all info is available I wish I had a shop manual to veiw this myself.



CW
GenIII
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6/06/2002
20:25:52

RE: CW crank position senor 4.7l ????
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It sends a 5 volt square wave to the computer, with that wave starting at somewhere in the visinity of 60 before TDC. The computer see this reading compares it to all the other sensors then decides when to fire the plug. All a resistor would do is lower the voltage setting a code.

I have already looked at adjusting the sensor and that is a no go as it is cast into the block. The only thing I can see to make the timing adjustable is the Icon Ignition Controller. Not exactly sure how it works but it plays with the crank sensor reading to advance the timing.

2001 4.7HO RC 5sp 3.92 LSD

Click on thumbnail for mods.

D
Dodge Dakota
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6/06/2002
20:41:25

RE: CW crank position senor 4.7l ????
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you can order the manual...its about a $100
though ; )

1800-890-4038



kennungesser
Gen III
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6/06/2002
22:08:17

RE: CW crank position senor 4.7l ????
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Thats the sensor that went bad on my 4.7 It would turn over , but not start. After about 5 minutes sitting there , the truck would start. Only happened twice , and was fixed under warrinty(thank God) Thats one I don't think I'll mess with. C.W , you ever hear of any more of these going bad?

Kenneth l Nungesser

CW
GenIII
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6/06/2002
22:35:27

RE: CW crank position senor 4.7l ????
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I have seen a couple but very few and far between. They usualy set a code if they quit working all together at one point.

2001 4.7HO RC 5sp 3.92 LSD

Click on thumbnail for mods.

conig
Dodge Dakota
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6/07/2002
13:50:10

RE: CW crank position senor 4.7l ????
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thats what I thought to bad there isn't a way to increase the voltage, that has to be what the icon does. to bad i'm low on cash. I may just see if kenne-bell can give me a more aggresive pcm flash.



CW
GenIII
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6/07/2002
14:18:30

RE: CW crank position senor 4.7l ????
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It foold the computer into fireing earlier by giving it a false pattern. Has nothing to do with voltage.:)

2001 4.7HO RC 5sp 3.92 LSD

Click on thumbnail for mods.

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