p0300
01-02-2010, 06:28 PM
#1
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p0300 anyone dealt with this before?
my car had a misfire. re checked my coils and wires
deleted the code. car runs fine but the code came back on .
my car had a misfire. re checked my coils and wires
deleted the code. car runs fine but the code came back on .
01-03-2010, 03:47 AM
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yeah its a stock cam. what should i look for? coil harness?
noh it stays on. car did idle funny at first but its running fine now. the code just popped up on me while driving again
noh it stays on. car did idle funny at first but its running fine now. the code just popped up on me while driving again
01-03-2010, 02:21 PM
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not sure if my ohm reader is accurate but one plug wasnt reading anything and the other was reading about 128 the rest are about 50
my sparkplugs look perfectly fine
my sparkplugs look perfectly fine
Last edited by TPI TERROR; 01-03-2010 at 02:42 PM.
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01-04-2010, 02:47 AM
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Is that what you did for my car. I used to get that random misfire code every once and a while, but since the last time you tuned my car I havn't thrown any codes at all.
01-04-2010, 08:31 AM
#10
Spark plug wires are messed up somewhere, could also be a bad ground as stated check the wires on the back of the driver side head and see if the bolt is tight back there. pain in the *** i know. Otherwise pull spark plug wires I have extras if you want to borrow I have been through this enough times now. I have msd's and extra stock ones let me know if ya need either to test it out.
01-04-2010, 10:07 PM
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car is stil runing strong . maybe the code hasnt dissapeared.
anyone selling individual msds. ? or
i might juist pick up a new set from ls1tech vendors
anyone selling individual msds. ? or
i might juist pick up a new set from ls1tech vendors
01-07-2010, 05:37 PM
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Also, I know my P0300 code ended up being a little bit of water in the driver side 02 sensor harness (where it plugs into the extension). Found that out after I replaced all the coils/plugs, and was about to replace the 02 sensors, lol. Blew the water out and the code went away.
So I'd check the random, easy free stuff first. All the connections that control fuel/air/spark.
So I'd check the random, easy free stuff first. All the connections that control fuel/air/spark.
01-07-2010, 05:57 PM
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before you throw parts at it have it checked you might end up buying something you dont need
Also, I know my P0300 code ended up being a little bit of water in the driver side 02 sensor harness (where it plugs into the extension). Found that out after I replaced all the coils/plugs, and was about to replace the 02 sensors, lol. Blew the water out and the code went away.
So I'd check the random, easy free stuff first. All the connections that control fuel/air/spark.
So I'd check the random, easy free stuff first. All the connections that control fuel/air/spark.
