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Old 12-14-2010, 01:16 AM   #1
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Default backfire/rough idle

So my mark 2 is back firing and isles rough. My idle is at 450 cold and 800 warm is this normal??? HELP!!!
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Old 12-18-2010, 05:22 PM   #2
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back firing could be a hole in your exhaust system.

if you doubt your timing is correct...
http://www.cygnusx1.net/Supra/Librar....aspx?S=IG&P=1

its not hard to check if your belt is worn either:
http://www.cygnusx1.net/Supra/Librar...Section=EM&P=7
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Old 12-18-2010, 07:10 PM   #3
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My timing is perfect I already checked...but I am positive I have an exhaust hole. I was just curious if that was it cuz I messed with my idle and was wondering if I had to much fuel or it was a objectors problem
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Old 12-19-2010, 01:51 PM   #4
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as long as you did it "by the book" your timing should be fine.

checking your injectors is never a bad thing. they have filters,
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Old 12-19-2010, 04:56 PM   #5
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Define by the book.....and where aroe the filters??
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Old 12-19-2010, 10:18 PM   #6
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http://www.cygnusx1.net/Supra/Librar...2/default.aspx
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