T O P I C R E V I E W
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89SC50
Member # 6248
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posted
since converting to 5spd from aod I have detonation proplems at stock timining with premium feul. it was not a problem with 18* advance with the aod never did it once. It is a stock motor with bolt-ons just put in a9l didnt help, are there any other reasons for this the advance comes from the ecu right?
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89SC50
Member # 6248
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posted
or could there be a sensor gone bad that is giving the ecu bad data and causing it to do somthing like advance it to much?
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50DADDY
Member # 3076
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posted
18 degrees
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92stangLX
Member # 3252
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posted
quote: Originally posted by 50DADDY: 18 degrees
Yeah no shit Set the timing at 14 degrees and see if it still detonates. If it does then keep retarding the timing.
Are you running 91 octane?
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89SC50
Member # 6248
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posted
at 10* it detonates with premium.
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92stangLX
Member # 3252
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posted
quote: Originally posted by 89SC50: at 10* it detonates with premium.
Did you pull the distributor recently? It sounds like your timing is off.
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89SC50
Member # 6248
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posted
The distributor was pulled a while back at a shop, is there a way I can tell that it is off by looking at it or how can I test it? thanks for the help I am going crazy.
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89SC50
Member # 6248
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posted
The distributor was pulled a while back at a shop, is there a way I can tell that it is off by looking at it or how can I test it? thanks for the help I am going crazy.
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Curt
Member # 6254
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posted
pull the plug outta number 1 (its the first on the passengers side) and put a pipe cleaner in there, or a straw, and have somebody crank it, when the pipecleaner is at its highest point have them stop and look at the number one position on the dist, if its not pull it out adjust it
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88gt
Member # 579
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posted
You will need a timing light to know for sure what your timing is. In the meantime, are you running 91 gasoline?
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