Low octane spark advance & high octane...
08-13-2003, 11:53 PM
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Low octane spark advance & high octane... I want to make the Low table match the high table but have a few questions...
1)is it true that when you go below 1/4 tank (of gas) the PCM switches to the low table for "mileage"?
2) I want these both to be the more aggressive high table settings if the above is true so as not to be down on power when lower on fuel, is this a decent idea? (btw, I only put 93 octane in my car and really shoudln't need "low ocatne" table. That is, unless I get some crappy gas, but that's another issue then)
3)Is there anyway to copy one tables settings into another (i.e. the high tables values into the low table) I know that this can be done from one "file" to another on the same table (i.e. read file/copy file and compare) but like I said, can I get the values from the high table (either within the same file or even from my previous file) into the low table, without having to manually enter each block?
Kinda lengthy but now I think you might understand
any and all help is/will be appreciated
Troy
1)is it true that when you go below 1/4 tank (of gas) the PCM switches to the low table for "mileage"?
2) I want these both to be the more aggressive high table settings if the above is true so as not to be down on power when lower on fuel, is this a decent idea? (btw, I only put 93 octane in my car and really shoudln't need "low ocatne" table. That is, unless I get some crappy gas, but that's another issue then)
3)Is there anyway to copy one tables settings into another (i.e. the high tables values into the low table) I know that this can be done from one "file" to another on the same table (i.e. read file/copy file and compare) but like I said, can I get the values from the high table (either within the same file or even from my previous file) into the low table, without having to manually enter each block?
Kinda lengthy but now I think you might understand
any and all help is/will be appreciated
Troy
08-14-2003, 03:20 AM
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Re: Low octane spark advance & high octane... Not sure how to transfer the high octane table over, my predator tuner did that for me, minus 1-2* for my peace of mind.
08-14-2003, 12:29 PM
#3
Re: Low octane spark advance & high octane... I don't know about the 1/4 tank and low octane table??? But -the only way to transfer tables ,high to low octane , with Edit currently is Manually. That sucks!!!! 
joel(Bink)
joel(Bink)
08-20-2003, 04:43 PM
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Re: Low octane spark advance & high octane... Just wondering if the quarter tank and below then switch to low octane table is fact?
Anyone else heard this?
Anyone else heard this?
08-20-2003, 10:19 PM
#5
Re: Low octane spark advance & high octane... It is a myth that got started a while ago. Your car does not use the Low Octane Table on low gas. The low octane table is only used when KR is seen or the Knock sensors get disconnected.
Somewhere somebody got their information mixed up. What it actually is, is that once you are on the low octane table due to knock retard you have to put roughly a quarter tank of gas (20% or 5 gallons) to have the PCM reset back to the high octane table.
Somewhere somebody got their information mixed up. What it actually is, is that once you are on the low octane table due to knock retard you have to put roughly a quarter tank of gas (20% or 5 gallons) to have the PCM reset back to the high octane table.
08-21-2003, 12:16 AM
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Re: Low octane spark advance & high octane... My cars timing keeps dropping as the rpms' got up at and at wot. At wot timing drops to 21'. Car runs like a v6 in the summer.
