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'85 TPI ECM upgrade, "165" ECM only?

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Old 12-14-2003, 11:46 AM
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Car: '85 Z28 TPI
Engine: 305 F vin
Transmission: 700
Axle/Gears: 3.23 posi 10 bolt
'85 TPI ECM upgrade, "165" ECM only?
Must I use the "1227165" ECM or will another such as a "1227169" from a '86 Monte SS work? Any idea? Thanks, Randy
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Old 12-15-2003, 01:08 PM
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Re: '85 TPI ECM upgrade, "165" ECM only?
Originally posted by Ranbo108
Must I use the "1227165" ECM or will another such as a "1227169" from a '86 Monte SS work? Any idea? Thanks, Randy
It is recommended that you upgrade with known ECMs. By known it is with ones that there is information available for them. The '165 and '730 are both canidates to be used for an upgrade. They are both used in Thirdgen f-body's. The '165 being a MAF based system and the '730 being a SD based system.

These two ECMs support a V8 PFI engine. ALong with any required smog equipment. They are both viable upgrade paths.

RBob.
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Old 12-16-2003, 04:56 PM
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Re: '85 TPI ECM upgrade, "165" ECM only?
Originally posted by Ranbo108
Must I use the "1227165" ECM or will another such as a "1227169" from a '86 Monte SS work? Any idea? Thanks, Randy
The 86 SS's I know were all CCC, computer controlled carbs, and those ecms won't work for EFI.

go to the DIY-PROM board and investigate the 1227730 or 730. It's the ecm used in the 90-91 v8 F Bods.
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Old 12-16-2003, 07:10 PM
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Car: '85 Z28 TPI
Engine: 305 F vin
Transmission: 700
Axle/Gears: 3.23 posi 10 bolt
Thanks Guys, This is a bit new to me although within my ability.
Randy
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Old 06-21-2021, 07:20 PM
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Re: '85 TPI ECM upgrade, "165" ECM only?
I am looking to replace stock ECM(w/MAF) so that my 1985 IROC 305 EFI can be programmed and use the EDBt 2 port.

ANyone know data about doing that?

K Mc
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Old 06-22-2021, 09:52 AM
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Re: '85 TPI ECM upgrade, "165" ECM only?
Originally Posted by KTMAC
I am looking to replace stock ECM(w/MAF) so that my 1985 IROC 305 EFI can be programmed and use the EDBt 2 port.

ANyone know data about doing that?

K Mc
Consider another route entirely...

https://dynamicefi.com/EBL_Flash.php

- Rob
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Old 06-22-2021, 10:17 AM
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Re: '85 TPI ECM upgrade, "165" ECM only?
Originally Posted by KTMAC
I am looking to replace stock ECM(w/MAF) so that my 1985 IROC 305 EFI can be programmed and use the EDBt 2 port.

ANyone know data about doing that?

K Mc

never heard of a EDBt 2 port , what’s that ?
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Old 06-22-2021, 10:37 AM
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Re: '85 TPI ECM upgrade, "165" ECM only?
ECM is for F(Camaro) 1985 1226870 5.0L

Any plug and play systems that allow for remote access and or Android phone access?

ODB2?
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Old 06-22-2021, 10:41 AM
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Re: '85 TPI ECM upgrade, "165" ECM only?
Dyslexic! Lol
OBD1, in the 85 originally.

Looking for something plug and use - or best option to change harness and ECM. . . .
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Old 06-22-2021, 10:48 AM
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Re: '85 TPI ECM upgrade, "165" ECM only?
Current(stock in 1985) ECM #1226870 and OBD1 portModel Year GmpartNo EngineF 1985 1226870 5.0L

Installed in Tri-Five convertible
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