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Dawn Stewart
Dodge Dakota
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6/13/2005
12:30:15
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 Subject: computer codes
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I have a 2000 V6 Dakota. The check engine comes on sometimes and when we checked the codes it comes up P0303 and P0304. What does this mean?
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Dan M
Dodge Dakota
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6/13/2005
13:13:43
|  RE: computer codes
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http://www.obdii.com/codes.html
P0303 Cylinder 3 Misfire Detected
P0304 Cylinder 4 Misfire Detected
maybe bad spark plugs, plug wires, fuel injectors? How many miles are on it and how long ago did you do a tune-up?
- Dan M
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chris
Dodge Dakota
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6/14/2005
14:24:58
| RE: computer codes
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I have the same peoblem anyone firgure out what the problem is/was and how to correct it ?
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doh?
Dodge Dakota
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6/14/2005
17:16:51
| RE: computer codes
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Dan ol' buddy, you will not get a misfire signal if the fuel injectors are bad. It only detects a spark cycle and sends a misfire code if there is something wrong with the spark discharge. There is a separate code if the injectors mis-spurt.
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Dan M
Dodge Dakota
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6/14/2005
22:45:54
| RE: computer codes
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Doh? A cylinde misfire condition will be detected if any of the necessary components for proper cylinder operation are not adequate ie not enough fuel, low compression and no spark.
A spark discharge malfunction is not the only reason for a cylinder misfire.
Yes, there are specific codes for injector issues but a failing injector might not throw a code just as a failing o2 sensor (just an example as there have been alot of discussion on o2 sensors lately) won't throw a code. It's within spec (proper electrical operation) but enough to be off to cause other systems/components to malfunction.
refer to P0300 - random/multiple cylinder misfire.
Notice it was 3rd in the list behind plugs and wires. It's more than likely not the cause but a possibility.
- Dan M
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