An ECU scan tool for turbo and NA owners
Moderators: Helpinators, Moderators
vikash, this is exactly what I was looking for, If one was to collect the parts, would it be possible to have somthing like that done using your software?
Rio Red 90 Legacy LS AWD 174k
Liquid Silver 92 SVX LS-L 88k
[url=http://folding.amdmbpond.com/FoldingForOurFuture.html]Do you fold?[/url]
I'm on First and First. How can the same street intersect with itself? I must be at the nexus of the universe.
Liquid Silver 92 SVX LS-L 88k
[url=http://folding.amdmbpond.com/FoldingForOurFuture.html]Do you fold?[/url]
I'm on First and First. How can the same street intersect with itself? I must be at the nexus of the universe.
Any chance of getting this to work with a palm pilot or pocket pc?
-Mike
2011 Infiniti G37x Sedan - Current
2007 Ducati 800ss - Current
1994 Subaru Legacy Sport Wagon (White)
1994 Subaru Legacy Sport Wagon (Silver)
2003 Infiniri G35
1998 Infiniti I30t
1995 Honda Civic DX
1987 Subaru GL Wagon
1987 Subaru Loyale
2011 Infiniti G37x Sedan - Current
2007 Ducati 800ss - Current
1994 Subaru Legacy Sport Wagon (White)
1994 Subaru Legacy Sport Wagon (Silver)
2003 Infiniri G35
1998 Infiniti I30t
1995 Honda Civic DX
1987 Subaru GL Wagon
1987 Subaru Loyale
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- Vikash
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Same answer -- you could in principle implement this scan tool on any platform that has the means.
I don't expect to be porting it to other platforms anytime soon though... I don't have time or access to the necessary test equipment.
I don't expect to be porting it to other platforms anytime soon though... I don't have time or access to the necessary test equipment.
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212
ok, thought I'd ask. I've been doing some basic ladder logic controls programing using siemens step 7, I'd like to look into making programs for my sony Clie
-Mike
2011 Infiniti G37x Sedan - Current
2007 Ducati 800ss - Current
1994 Subaru Legacy Sport Wagon (White)
1994 Subaru Legacy Sport Wagon (Silver)
2003 Infiniri G35
1998 Infiniti I30t
1995 Honda Civic DX
1987 Subaru GL Wagon
1987 Subaru Loyale
2011 Infiniti G37x Sedan - Current
2007 Ducati 800ss - Current
1994 Subaru Legacy Sport Wagon (White)
1994 Subaru Legacy Sport Wagon (Silver)
2003 Infiniri G35
1998 Infiniti I30t
1995 Honda Civic DX
1987 Subaru GL Wagon
1987 Subaru Loyale
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- Vikash
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That's correct, RSLegacy90; it only works on 1st-generation North American Legacy models.
Given the amount of interest in making it work on other cars, though, I might try to make a limited version that would work on cars from other markets. I can't do the reverse engineering thing but maybe I can make use of some of the info out on the web.
If anyone wants to send me samples of JDM or otherwise non-North-American ECUs, feel free to PM me for an address.
Given the amount of interest in making it work on other cars, though, I might try to make a limited version that would work on cars from other markets. I can't do the reverse engineering thing but maybe I can make use of some of the info out on the web.
If anyone wants to send me samples of JDM or otherwise non-North-American ECUs, feel free to PM me for an address.
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212
Is any effort going to be made to make a version that displays more than one result on the screen?
An idea would be just a couple screens with like info on it... one screen with RPM and Speed and Coolant Temp and Voltage, another with all the vaccum/boost info.. etc. etc.
I'd be ok with it polling each of the sensors only 1/4th as often.
An idea would be just a couple screens with like info on it... one screen with RPM and Speed and Coolant Temp and Voltage, another with all the vaccum/boost info.. etc. etc.
I'd be ok with it polling each of the sensors only 1/4th as often.
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- Vikash
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At some point, yes. At this point almost no effort is going into the scantool at all.
They would actually be sampled a little less than 1/4th as often because the instructions would have to be sent. And another catch is that when the ECU's concentrating too hard on running the engine it ignores the signals, so you'd have to maintain sync with a watchdog somehow.
They would actually be sampled a little less than 1/4th as often because the instructions would have to be sent. And another catch is that when the ECU's concentrating too hard on running the engine it ignores the signals, so you'd have to maintain sync with a watchdog somehow.
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212
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- Vikash
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We didn't get the BC/BF Legacy until 1990, and didn't get turbos until 1991. We kept the BC/BF up through 1994.
Our 1990-1991 5MT non-turbo ECUs are 8-bit.
Our 1991-1994 turbo ECUs are 8-bit.
All the rest of our ECUs (1990-1991 non-turbo automatics, and all 1992-1994 non-turbos) are 16-bit.
However, from what I can tell, our 8-bit ECU is completely different from your 8-bit series 1 ECU. Ours is made by Hitachi, like earlier Subaru ECUs, whereas yours I believe is made by JECS, like the 16-bit ECUs.
Our 16-bit ECU is somewhat similar to the WRX ECU of the same era. We never got a 16-bit turbo ECU though.
Our 1990-1991 5MT non-turbo ECUs are 8-bit.
Our 1991-1994 turbo ECUs are 8-bit.
All the rest of our ECUs (1990-1991 non-turbo automatics, and all 1992-1994 non-turbos) are 16-bit.
However, from what I can tell, our 8-bit ECU is completely different from your 8-bit series 1 ECU. Ours is made by Hitachi, like earlier Subaru ECUs, whereas yours I believe is made by JECS, like the 16-bit ECUs.
Our 16-bit ECU is somewhat similar to the WRX ECU of the same era. We never got a 16-bit turbo ECU though.
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212
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thx for that mate.
hmm it seems like a whole lotta chopin and changin on soob's behalf!!
my ecu is a JECS 8-bit (1990 ej20t)
keen for a scan tool program
ECUTEK in the UK do a cool one for late model wrx.. it even keeps track of injector duty cycle. costs a small fortune tho..
hmm it seems like a whole lotta chopin and changin on soob's behalf!!
my ecu is a JECS 8-bit (1990 ej20t)
keen for a scan tool program
ECUTEK in the UK do a cool one for late model wrx.. it even keeps track of injector duty cycle. costs a small fortune tho..
JT
1990 RS Legacy
Dunedin, nz
1990 RS Legacy
Dunedin, nz
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- Vikash
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Hehe, yeah, they did a bunch of weird stuff, especially when it comes to our turbo Legacies. Unique ECU, unique turbo configuration, the only EJ turbo with SOHC heads, the only pre-97 EJ turbo with waste spark...
If I do get around to making the "world market wrx scan tool" you may actually need to swap to a 16-bit ECU to use it (from what I understand it's really a drop-in replacement). I know approximately nothing about the 8-bit JECS system.
I believe the system you're talking about is called the ECUTEK DeltaDash here. It is very cool. But, yes, it's not cheap.
If I do get around to making the "world market wrx scan tool" you may actually need to swap to a 16-bit ECU to use it (from what I understand it's really a drop-in replacement). I know approximately nothing about the 8-bit JECS system.
I believe the system you're talking about is called the ECUTEK DeltaDash here. It is very cool. But, yes, it's not cheap.
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212
will your scan tool work with a chip that has bin moded. every time i try to make it work it gives me a screen trying to fiand the rom and parrlelle port 03b,
need help vrg
need help vrg
1993 Subaru Legacy 44B STi 4Cam 16Valve Turbo Intercooled AWD
EJ22T, STi EJ207 DOHC, Vi-PEC (Spare Autronic) @ 426.20HP / 394.94ft lb @ 00psi
Tuned By: Franz Diebold ( DIEBOLD AUTOSPORT ) @ NVauto
EJ22T, STi EJ207 DOHC, Vi-PEC (Spare Autronic) @ 426.20HP / 394.94ft lb @ 00psi
Tuned By: Franz Diebold ( DIEBOLD AUTOSPORT ) @ NVauto
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- Vikash
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I can't say for sure whether the chip will affect scantool functionality, since I don't know what's been modified on the chip... Most likely it will work though.
It says it found the parallel port at 03B? Cuz that's not right... On most laptops it's at 378 or 3BC. Can you check in your laptop's setup to make sure the parallel port is enabled?
It says it found the parallel port at 03B? Cuz that's not right... On most laptops it's at 378 or 3BC. Can you check in your laptop's setup to make sure the parallel port is enabled?
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212
i am going to cruz around agian and i will txt you when i get it but it stops at proccessing the rom ... and wont do nothing more. i tried all day i must have the right file cuz it took me that far.
1993 Subaru Legacy 44B STi 4Cam 16Valve Turbo Intercooled AWD
EJ22T, STi EJ207 DOHC, Vi-PEC (Spare Autronic) @ 426.20HP / 394.94ft lb @ 00psi
Tuned By: Franz Diebold ( DIEBOLD AUTOSPORT ) @ NVauto
EJ22T, STi EJ207 DOHC, Vi-PEC (Spare Autronic) @ 426.20HP / 394.94ft lb @ 00psi
Tuned By: Franz Diebold ( DIEBOLD AUTOSPORT ) @ NVauto
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The generic scan tools read OBD2 computers. Ours are OBD1, which at the time were propritary. So you would need a subaru scan tool and the correct cartridge to read the ECU.
I've got one, and so does vrg3. His scan tool does pretty much the same thing the subaru select monitor does.
I've got one, and so does vrg3. His scan tool does pretty much the same thing the subaru select monitor does.
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
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- Vikash
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What Josh said.
Some third-party OBD-1 scan tools can scan our ECUs, from what I understand... I think I remember someone saying they used the Snap-On one in particular. I would assume those scan tools were developed the same way mine was, and would have similar functionality.
The big differences between my scantool and the Subaru one are that mine displays readings at a higher rate, and that it doesn't read or clear trouble codes.
Some third-party OBD-1 scan tools can scan our ECUs, from what I understand... I think I remember someone saying they used the Snap-On one in particular. I would assume those scan tools were developed the same way mine was, and would have similar functionality.
The big differences between my scantool and the Subaru one are that mine displays readings at a higher rate, and that it doesn't read or clear trouble codes.
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212
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- Vikash
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There is OBD1 software available: http://www.graphics.cornell.edu/~v/bcbfscan/
It's just not universal.
The Subaru scan tool wasn't cheap when it was new, but Josh and I each got lucky on eBay. The ones we have are actually now obsolete, replaced by newer, more expensive ones.
It's just not universal.
The Subaru scan tool wasn't cheap when it was new, but Josh and I each got lucky on eBay. The ones we have are actually now obsolete, replaced by newer, more expensive ones.
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212
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