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post #1 of 7 (permalink) Old 01-13-2006 Thread Starter
 
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Help Detonation

Ok... i pretty much have to run 93 octane or higher to shut my car up... its annoying and expensive and bad ... how do i fix this i no longer want to purchase 93 octane...

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post #2 of 7 (permalink) Old 01-13-2006
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Quote:
Originally Posted by 99'StangTx
Ok... i pretty much have to run 93 octane or higher to shut my car up... its annoying and expensive and bad ... how do i fix this i no longer want to purchase 93 octane...
Are you the original owner?


Woe to him who builds his palace by unrighteousness,his upper rooms by injustice,making his countrymen work for nothing...Does it make you a king to have more and more cedar?Did not your father have food and drink?He did what was right and just,so all went well with him. He defended the cause of the poor and needy,and so all went well...But your eyes and your heart are set only on dishonest gain,on shedding innocent blood and on oppression and extortion. Jer 22:13, 15-17
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post #3 of 7 (permalink) Old 01-13-2006 Thread Starter
 
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No i bought it used almost 2 yrs ago @ 63k. Detonation wasnt bad at all until about 11 months ago.. i evn detonate on mid grade... i have run fuel injector cleaner, Fuel filter is recent, Plugs are about 10 - 12 months old - Bosch Platinum +1's Not quite sure what else all is stock cept drop in K&N
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post #4 of 7 (permalink) Old 01-14-2006
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Quote:
Originally Posted by 99'StangTx
No i bought it used almost 2 yrs ago @ 63k. Detonation wasnt bad at all until about 11 months ago.. i evn detonate on mid grade... i have run fuel injector cleaner, Fuel filter is recent, Plugs are about 10 - 12 months old - Bosch Platinum +1's Not quite sure what else all is stock cept drop in K&N
the previous owner may have reprogrammed the computer.

Woe to him who builds his palace by unrighteousness,his upper rooms by injustice,making his countrymen work for nothing...Does it make you a king to have more and more cedar?Did not your father have food and drink?He did what was right and just,so all went well with him. He defended the cause of the poor and needy,and so all went well...But your eyes and your heart are set only on dishonest gain,on shedding innocent blood and on oppression and extortion. Jer 22:13, 15-17
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post #5 of 7 (permalink) Old 01-16-2006
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The only other thing I can think of is your timing chain jumped, so your timing is all off.

Woe to him who builds his palace by unrighteousness,his upper rooms by injustice,making his countrymen work for nothing...Does it make you a king to have more and more cedar?Did not your father have food and drink?He did what was right and just,so all went well with him. He defended the cause of the poor and needy,and so all went well...But your eyes and your heart are set only on dishonest gain,on shedding innocent blood and on oppression and extortion. Jer 22:13, 15-17
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post #6 of 7 (permalink) Old 01-17-2006 Thread Starter
 
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anything else i should listen for or Need to know about to self-diagnise that theory?
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post #7 of 7 (permalink) Old 01-18-2006
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Quote:
Originally Posted by 99'StangTx
anything else i should listen for or Need to know about to self-diagnise that theory?
I'd take it to a dealer and reflash the computer with an OEM tune -It should cost $80 or so, checking the timing should fall under the reprogram.

Woe to him who builds his palace by unrighteousness,his upper rooms by injustice,making his countrymen work for nothing...Does it make you a king to have more and more cedar?Did not your father have food and drink?He did what was right and just,so all went well with him. He defended the cause of the poor and needy,and so all went well...But your eyes and your heart are set only on dishonest gain,on shedding innocent blood and on oppression and extortion. Jer 22:13, 15-17
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