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*****Troubleshooting,please help!!!********

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Old 05-01-2005, 08:42 PM
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Question *****Troubleshooting,please help!!!********

My car is starting to have a missfire.In the morning it worked very good but when i drive it for more than 1 hour it star a very BAD misfire.In the highway in 6th gear it fail very bad and the srev, engine soon ligth start bink so i know it is a missfire.Then if i stoped the car for about 20 minutes the problem desapired until it getting hot again. I think it can be an ingnition coil.What you guys think.Any of you had the same problem in the past?If so what you did to solve it?Thanks in advance.
Old 05-02-2005, 08:15 AM
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Have it scanned for error codes, post the results here.

The stock LS1 ign coils are very tough, unlikely it's one of them.

The only times I've had a noticeable misfire were traced to an oily MAF sensor (got code P0101) and a worn out plug wire (got code P0200).

Start with the stored error codes.
Old 05-02-2005, 12:56 PM
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Check the codes. Doing it when it is hot, makes me think detonation issues.
Old 05-02-2005, 08:54 PM
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Originally Posted by BBQLS1
Check the codes. Doing it when it is hot, makes me think detonation issues.

Definitly is a detonation issue.Is any way i can read the codes with out an scanner?If not the HP tunner can be used to read codes as an scanner?If so i have the excuse to buy it.


The plus wires are about 10 month old MSD,spark plugs the same time TR55s.So i have to find out wich code it give me.Thanks




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