102 - Advanced Tuning Of A Delco ECM with $12P

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v6psi gem
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Re: 102 - Advanced Tuning Of A Delco ECM with $12P

Post by v6psi gem »

would this be the switch & resistor assembly?
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antus
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Re: 102 - Advanced Tuning Of A Delco ECM with $12P

Post by antus »

Yeah thats the one.
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v6psi gem
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Re: 102 - Advanced Tuning Of A Delco ECM with $12P

Post by v6psi gem »

thanx for your assistance, now to try it out
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Re: 102 - Advanced Tuning Of A Delco ECM with $12P

Post by antus »

Keep in mind $5D does not support boost, and the $5D '2 bar' tune thats getting around is an ugly calibration hack to a Normally Aspirated only operating system. You would be greatly better off running 12p and using its multiple map functions, even from eprom or eeprom.
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v6psi gem
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Re: 102 - Advanced Tuning Of A Delco ECM with $12P

Post by v6psi gem »

yeah, my user name is misleading for this project lol. the gem is using $12p with a nvram, this project is na. will the nvram support $5d to get the tune right using real time tuning before i program it to the 27c256? or do i have to just log it then re-program till i get what i need?
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Re: 102 - Advanced Tuning Of A Delco ECM with $12P

Post by antus »

No, $5D does not support realtime editing or high speed comms. You can only log $5D at 160 baud, and that will be a giant very slow pain in the ass lacking most the info you can expect from $12P. Why not tune on $12P instead - then you can use the nvram to tune and copy it to an eprom/eeprom when your done?
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Re: 102 - Advanced Tuning Of A Delco ECM with $12P

Post by v6psi gem »

maybe i'll just have to tune $12p & then build a replica $5d tune from that.
Last edited by v6psi gem on Sun Jun 29, 2014 12:52 pm, edited 1 time in total.
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Re: 102 - Advanced Tuning Of A Delco ECM with $12P

Post by antus »

Ahh I see. Yeah thats probably going to be your easiest option.
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v6psi gem
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Re: 102 - Advanced Tuning Of A Delco ECM with $12P

Post by v6psi gem »

was thinking some more could i have $5d on the low address and have $12p on the high address. so as without the switch it looks $5d but when switched will run $12p. obviously disconnecting battery to switch over. that way i can live tune it then just stack it on a $5d & program to a 27c512 so there is room :study:
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Re: 102 - Advanced Tuning Of A Delco ECM with $12P

Post by Holden202T »

this wouldn't happen to be a in a street stocker ??? I don't know why they allow the ecotec but insist on having to run a vn/vp computer!
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