Reprogramming Stock ECU seems possible!! - 3000GT/Stealth International Message Center

3000GT_Rider · 04-03-2008, 06:04 AM

Well I ran into this article under the 3000GT section, so I am assuming it applies to 3000GTs. I don't know the extent that this can reprogram.

Read: http://laurenstephens.net/uploads/4a81030ae5.pdf

3000GT_Rider · 04-03-2008, 12:42 PM

Anyone?

Gray Haze · 04-03-2008, 05:25 PM

3000GT ECU is not EEPROM. Therefore its not programable.

The only exception to this seems to POSSIBLY be 1998-1999.

3000GT_Rider · 04-03-2008, 07:35 PM

EEPROM or not, read the PDF. Aparently you can edit settings with the MUT-III

Gray Haze · 04-03-2008, 07:53 PM

I Know nothing about the 3S platform.

cbehnken · 04-03-2008, 07:57 PM

who gives a shit if you can?

Mail-in tunes suck. That is just what I want, someone else's tune that I can't even change. WONDERFUL.

91vr4n00maxima · 04-03-2008, 08:26 PM

Quote:

Originally Posted by Gray Haze

I Know nothing about the 3S platform.

no gray we dont.

some obscure website just pwnd us and proved us wrong.

3000GT_Rider · 04-03-2008, 11:36 PM

Quote:

Originally Posted by Gray Haze

I Know nothing about the 3S platform.

Well instead of just making a smart ass comment, can you explain what that PDF means then? Did you even read the PDF? Is it just a big lie that government put out?

All I am looking for is an inteligent explanation of what the MUT-III can do as far as changing settings, IN ACCORDANCE with that guide. It's not an obscure website, it was a TSB put out by mitsu

gearheadvr4 · 04-04-2008, 12:02 AM

Nice find on the pdf. I did read thru the pdf and one major sticking point was the statement "all vehicles capable of PCM reprogramming"

I've seen it discussed a few times and it was shown that the ecu has read only chips. If they are read only chips, fixed set of instructions and programming... then you can't reprogram them. No matter what a pdf says. Even if it was possible I think those MUT-III are pretty expensive.

Gray get's a bit touchy when someone questions him but I'd pay attention. He knows his st*t on these cars. This has been looked at before. Either way I agree with cbehnken, I want to have control either with a piggy back or AEM. Stuff that I can program and change myself. I know a guy at work that owns a VW turbo beetle. He sent his ecu in for programming to go with the kit they sold. He wants to upgrade a few things but he's not sure if he can now since he has zero flexibility with his tune.

BlackStealth · 04-04-2008, 06:02 AM

As Gray Haze already mentioned, only 98-99 models can be reprogrammed. The older 91-97 models cannot.

04-03-2008, 06:04 AM	#1 (permalink)
3000GT_Rider Verified Seller Join Date: May 2007 Location: Florida Trader Rating: (5)	Reprogramming Stock ECU seems possible!! Well I ran into this article under the 3000GT section, so I am assuming it applies to 3000GTs. I don't know the extent that this can reprogram. Read: http://laurenstephens.net/uploads/4a81030ae5.pdf

04-03-2008, 12:42 PM	#2 (permalink)
3000GT_Rider Verified Seller Join Date: May 2007 Location: Florida Trader Rating: (5)	Re: Reprogramming Stock ECU seems possible!! Anyone?

04-03-2008, 05:25 PM	#3 (permalink)
Gray Haze Master Of Disaster Join Date: Mar 2002 Location: Fort Worth, Texas Drives: 3S's Since Feb 2002. Trader Rating: (25)	Re: Reprogramming Stock ECU seems possible!! 3000GT ECU is not EEPROM. Therefore its not programable. The only exception to this seems to POSSIBLY be 1998-1999. __________________ 1992 3000GT VR-4 #15 of 24. The ORIGINAL Sandstone Gray '99 Conversion. A slow strangle with your feet on the floor. www.3stech.org - Now with 100% less invite codes! Free Registration!

04-03-2008, 07:35 PM	#4 (permalink)
3000GT_Rider Verified Seller Join Date: May 2007 Location: Florida Trader Rating: (5)	Re: Reprogramming Stock ECU seems possible!! EEPROM or not, read the PDF. Aparently you can edit settings with the MUT-III

04-03-2008, 07:53 PM	#5 (permalink)
Gray Haze Master Of Disaster Join Date: Mar 2002 Location: Fort Worth, Texas Drives: 3S's Since Feb 2002. Trader Rating: (25)	Re: Reprogramming Stock ECU seems possible!! I Know nothing about the 3S platform.

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04-03-2008, 07:57 PM	#6 (permalink)
cbehnken Forest Gump Join Date: Nov 2004 Location: Cape Girardeau Mo Drives: 1992 Stealth TT Trader Rating: (42)	Re: Reprogramming Stock ECU seems possible!! who gives a shit if you can? Mail-in tunes suck. That is just what I want, someone else's tune that I can't even change. WONDERFUL. __________________ Power: DSM 13G/DR650 Combo, DSM 450 cc bluetops MAXED out, SAFC I, K&N, Ebay Downpipe, ATR Dual Catback, no cats, DN Y-Pipe, Polished Plenum and Valve Cover, HKS SSQV, HKS EVC 5 at 14.5PSI, Walbro 255 with AN Bulkhead Suspension: KYB GR-2 - Tein S-Techs, Crossdrilled/slotted rotors, 17" chromies, Nitto 555s Drivetrain: RPS Street Max, M.W. 300m O/S Etc: Smokinvr-4 Corner box, 10" Rockford Fosgate Punch sub, Eclipse Headunit Leatherseats.com Charcoal/Dove Grey Interior, 99 front end/lights/wing Maintenance New VSS, all 60K stuff, new 1st,2nd, 3rd syncro, trans seals, oil pump, rod and main bearings. JEDI MASTER SAFC NARROWBAND BASED TUNER, LORD OF THE DANCE ALSO

04-04-2008, 12:02 AM	#9 (permalink)
gearheadvr4 Forum Member Join Date: Apr 2006 Location: Fort Worth Drives: Pucking VR4 Trader Rating: (24)	Re: Reprogramming Stock ECU seems possible!! Nice find on the pdf. I did read thru the pdf and one major sticking point was the statement "all vehicles capable of PCM reprogramming" I've seen it discussed a few times and it was shown that the ecu has read only chips. If they are read only chips, fixed set of instructions and programming... then you can't reprogram them. No matter what a pdf says. Even if it was possible I think those MUT-III are pretty expensive. Gray get's a bit touchy when someone questions him but I'd pay attention. He knows his stt on these cars. This has been looked at before. Either way I agree with cbehnken, I want to have control either with a piggy back or AEM. Stuff that I can program and change myself. I know a guy at work that owns a VW turbo beetle. He sent his ecu in for programming to go with the kit they sold. He wants to upgrade a few things but he's not sure if he can now since he has zero flexibility with his tune. __________________ Permanently broke! But her soul will be reborn into another VR4 soon. 92 VR4- Rebuilt engine with forged crank, TD05 manifolds with MHI EVO 3 16g, 6 speed conversion done, Maximal Solid Mounts, front mount 3" w/custom intercooler and intake pipes, OFE Stage 3 Clutch (from Southbend Clutch), SS clutch line, SS brake lines, SS oil and coolant lines, borla exhaust, stillen downpipe, egr block-off plates, LC-1 Wideband, blitz dc2 turbo timer, hks ssbov, Maft Pro speed density, Blitz SBC i-D III boost controller w/ Power Meter, k&n filters & custom intake pipes, gutted cats, 18x9 blitz type 03 wheels wrapped in Nexen N3000 tires, intrax springs, adj. control arms, 97 frontend and side conversion, 99 center tail light piece (<--adds at least 20hp on the dyno ) Last edited by gearheadvr4 : 04-04-2008 at 12:29 AM.*

04-04-2008, 06:02 AM	#10 (permalink)
BlackStealth Verified Seller Join Date: Apr 2000 Drives: 93 RT/TT Trader Rating: (151)	Re: Reprogramming Stock ECU seems possible!! As Gray Haze already mentioned, only 98-99 models can be reprogrammed. The older 91-97 models cannot.