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Help identifying ECM

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Old Jul 10, 2023 | 07:15 PM
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Help identifying ECM

Hey guys, have an ECM out of my '91 305 TBI that I need some help confirming details about. I tried looking up the numbers on the tag but didn't have much luck. Here's some pictures of the p/n, and Prom. From "testing", I know it isn't limited at 95-99 MPH like I'd expect on a 305 TBI RS, so was wondering if it may be out of something else. PROM looked like a stock Delco unless I missed something.






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Old Jul 10, 2023 | 07:17 PM
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Tuned Performance's Avatar
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Help identifying ECM

1228746
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Old Jul 11, 2023 | 01:59 AM
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From: Chasing Electrons
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Re: Help identifying ECM

AXKW is a stock chip for '89 - '92 Camaro & Firebirds with the L03, T5 & FED emissions. Need to go a little faster to hit the speed limiter, 108 MPH.

RBob.
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Old Jul 12, 2023 | 09:09 AM
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Re: Help identifying ECM

Awesome, thanks guys! I kept trying to search for 1228596 and kept wondering why I wasn't getting anything lol.
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