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Old 03-09-2005, 08:11 PM   #1
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Memcal/Calpack HELP!

Anyone know where to find a Memcal/Calpack?

I'm looking for a 1988-1989 (MAF of Course)... does the limp mode differ from 305 to 350 and from Auto to Manual or is all the limp mode the same no matter what? How about from 86 or 87, would the limp mode be the same as the 88-89 without cold start injector?

I tried to remove my prom and ended up demolishing my old Memcal...

So yeah, I need a new one... HELP!
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Mods: TB Bypass, Jeg's RedHot Coil and Ignition Module, K&N Air Filter, Ported Plenum, 3" cat back with Flowmaster Muffler dual 2-1/2" Out the back with Chrome Y tips, 180* thermostat, Manual fan switch, Accel 8mm Super Stock Plug Wires.

Soon: Project 383 TPI nearing compleation... Forged Pistons and Rods, AFR 195 cc Heads, TPIS BigMouth Majorly ported and matched, Edelbrock Runners, Edelbrock Headers, TPIS zz9 Copy Cam, LS1 Injectors, Custom Prom, 2400 Stall Converter, TransGO Shift Kit, and new almost everything with the engine. Lets hope I push 300+rwhp and 400+rwtq.

Best 1/4: 15.923@84.59 w/ 2.298 60ft.
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Old 03-09-2005, 08:27 PM   #2
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You can get one through a dealer. You'll need the stock four-letter code that is on the chip to correctly match the new and old.

Edit: go here AC Delco Part Catalog. You can narrow down your prom choices depending on factory options.

Last edited by Jade Grey; 03-09-2005 at 08:33 PM.
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Old 03-09-2005, 08:32 PM   #3
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Quote:
Originally posted by Jade Grey
You can get one through a dealer. You'll need the stock four-letter code that is on the chip to correctly match the new and old.
That's the thing tho... I'm swapping from a 305, which was setup as manual in the chip (it had an auto behind it tho) to a 383, which will be auto. So I want the best suited Limp Mode, I am going to be tuning the Prom it self, I just need a memcal for the limp mode...
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Old 03-09-2005, 08:38 PM   #4
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Oh, you just need the number for the last version of the 350 TPI MAF Auto memcal for 1989. Let me do some searching.

ENGINE / COMPUTER PROM/CHIP
01 16150500 EPROM,ECM
With RPO 4-SPD A/TRANS(MD8) ^ 3.27R(GW6) ^ FEDERAL EMIS(NA5) CODE 3516APYU,9356ANYF,0580AUJM

Above are results from the Delco site. 16150500 is a GM part number. I thought the last version was a ARAP though. Someone more knowledgable than me knows the answer.

Last edited by Jade Grey; 03-09-2005 at 08:55 PM.
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Old 03-09-2005, 08:39 PM   #5
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Quote:
Originally posted by Jade Grey
Oh, you just need the number for the last version of the 350 TPI MAF Auto memcal for 1989. Let me do some searching. The '165 ECM from a 1988-89 that I have lying around is a EBWT prom if that helps.
Any chance you want to get rid of the one you have? What engine is it for? auto/manual?
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Old 03-09-2005, 08:47 PM   #6
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Sorry about the compulsion editing.

I'm not sure the one I have in that '165 is stock. I was told it was reburned and have never had the opportunity to check. I not even sure that it's a 5.7L or 5.0L memcal. I bought the ECM as backup as I was planning to purchase a MAF car a few years ago.

edit: that prom code was actually ABWT and is for a 1987 GTA with a 350 and 3.27 gears. It was supposedly later burned for

edelbrock high flow intake
edelbrock headers
58mm throttle body
slp runners
slp cold air intake
30 lb ford racing injectors
ported- plenum,intake,heads
a hot cam

but I doubt it.

Last edited by Jade Grey; 03-09-2005 at 09:08 PM.
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Old 03-09-2005, 09:21 PM   #7
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That's the thing tho... when you reprogram a chip, i don't think you change the limp mode stuff, that's on the seperate chips in the memcal...

so basically... back to my original question... are all limp modes the same, independent of auto/manual and 86-87/88-89?
or would I need a specific year/engine/tranny to get the best limp mode for me?
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Old 03-09-2005, 09:21 PM
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