Is it possible to convert a ODB1 to ODB2

[crusada]

I have always wondered this about dsms never thought to ask. I know it can be done with hondas providing you have the right ECU. Is it possible to convert a 91talon TSI from ODB1 to ODB2.

Thanks

 

[ed1380]

Its not about effort. Its about $$$

 

[ramsack]

Time is money. Functionality is money. There are alternatives to factory old serial-port garbage tech that is DIY, new, not "$$$", and effort is equal or less. If you want to waste time and money on limited technology, that's on you. I don't see the merit in throwing in tons of money towards mechanical parts and controlling them with 1980s proprietary [consumer] technology. I don't see the merit in searching the globe high and low for Palm PDAs and laptops with serial ports just to keep some precious crap. It's so old I could design a board to make the stock ECU about the length and width of a floppy disk, or smaller. It could be even smaller if one could find smaller replacements for parts that need to stay (the square SMD Mitsu chips).

 

[ed1380]

Time is money. Functionality is money. There are alternatives to factory old serial-port garbage tech that is DIY, new, not "$$$", and effort is equal or less. If you want to waste time and money on limited technology, that's on you. I don't see the merit in throwing in tons of money towards mechanical parts and controlling them with 1980s proprietary [consumer] technology. I don't see the merit in searching the globe high and low for Palm PDAs and laptops with serial ports just to keep some precious crap. It's so old I could design a board to make the stock ECU about the length and width of a floppy disk, or smaller. It could be even smaller if one could find smaller replacements for parts that need to stay (the square SMD Mitsu chips).

700 for ecmlink=400 for ceddymods + your time
your time=$300

if it takes you 3 hours to do everything, then your time is worth $100/hour
4 hours- $75/hour
5 hours- $60/hour
10 hours- $30/hour

Most of us are making less than $30/hour, so even if it takes us 10 hours to solder and install a few new sensors, then we still come out winning.


As for older technology you can stated a perfect reason to use the 2g or evo ecu. Tactrix uses usb and has a slot for microsd so you can log without a laptop.

 

[mike96]

Good lord, the newly weds are fighting again.

Guys, relax... It is all a matter of personal preference. No reason to get all worked up over it.

Yea you can probably find a 1G ECMlink'd (DSMLink'd) ECU for a relatively good price if you are willing to wait a while, but I personally haven't seen one go for less than $400 either here on tuners or CL for quite some time. Some people get lucky and others don't.

On the flip side I haven't seen and 2G or EVO8 ECUs go for less than $100 in quite a while either, so for someone to pick up an ECU with an op1.3 for practically nothing..... Lucky S.O.B.

And if you are going to pull the whole "time is money" argument for something you will more that likely be doing on your own car during your own time... While it may not be true for everyone, making your own adapter harness to run a 2G ECU in a 1G isn't as difficult as some people are making it out to be. If you can read a diagram and have basic soldering skills you can make an adapter harness. So if you want to add that into the equation then EVO8 ECU<>ECMlink'd ECU cost about the same. Cost of tuning, same/same, whether you pay someone else to do it or you do it your self.

As for the rest of the arguments.

The 2G/EVO8 ECUs using ECUflash to my knowledge don't yet have control over the FPR regulator solenoid just yet, just the 2Gs running ECMlink. Trust me I have been keeping my eyes open for it and I haven't seen it happen yet.

As for having to run the rest of the wiring to make it compatible with OBD2... NO you don't NEED to do that. Like ECMlink you can turn most of the codes for that stuff off so you don't have to worry about running a rats nest of wiring to the ECU. You will if you want to use the couple of extra inputs to log other things but that's your decision.

Emissions testing = Sorry but as far as I know there isn't a state in the union that will test depending on what ECU you have in the car. They base the test they run on the year of the chassis. So even if you swap out the ECU, harness, all associated electronics, and any other doodad or gizmo's to make your 1990 whatever true OBD2... Sorry they are still gonna shove a rod up your cars pooper for a sniff check.

Now play nice or daddy will take all your toys away and put you both in separate corners...

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.
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Time is money. Man if I charged myself for all the time I spent on my own cars on my own time I would be a rich SOB right now...

Wait a minuite...

Maybe thats why I am always broke.

 

[ed1380]

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I just had to

 

[ramsack]

Nah, it's still all serial protocols converted to USB. And there is other tech to worry about. More specifically ADCs and DACs. An EVO or 2G ECU is not newer tech, just repackaged to conform to newer emissions standards. An EMS of some sort will allow you do get rid of the horrible batch fire ignition and fueling.

 

[mike96]

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I just had to

Actually kind of reminds me of this... Especially about min 2:33

Real Life vs The Internet - YouTube

you know there is a good possibility that someone with rooster teeth may have owned a DSM at some point, because that video fits DSMtuners to a tee at times...

. I'm bad...

 

[synthetek]

Emissions testing = Sorry but as far as I know there isn't a state in the union that will test depending on what ECU you have in the car. They base the test they run on the year of the chassis.

That is not correct, In California (maybe other states ) Its legal to swap an engine if it is from a car newer than the car that you are putting it in. Then you have to follow the emission rules for the engine, not the chassis. So if your putting a later model engine from a car with OBD2 into a car with OBD1 you have to swap the OBD2 ECU and all the emissions stuff too then you can have your car BAR certified and have a legal swap but you will then always be tested for emissions based on the engine not the chassis. That is one of the reasons Honda's do it, so they can can get their swap BAR certified and its the same with LS1 swaps too. It doesn't really apply much to DSMs since most of our swaps are form older cars (6 bolts) so that isn't legal in California anyway.

 

[mike96]

That is not correct, In California (maybe other states ) Its legal to swap an engine if it is from a car newer than the car that you are putting it in. Then you have to follow the emission rules for the engine, not the chassis. So if your putting a later model engine from a car with OBD2 into a car with OBD1 you have to swap the OBD2 ECU and all the emissions stuff too then you can have your car BAR certified and have a legal swap but you will then always be tested for emissions based on the engine not the chassis. That is one of the reasons Honda's do it, so they can can get their swap BAR certified and its the same with LS1 swaps too. It doesn't really apply much to DSMs since most of our swaps are form older cars (6 bolts) so that isn't legal in California anyway.

I have been known to have been wrong in the past. I am in the military so a lot of my information regarding other states comes from the people I work with and they aren't always reliable. If my info I apologize, my bad. I do know for a fact that the states of Arizona and Nevada (where emissions testing is required anyway) they base the emissions from the year of the vehicle not the engine. I have an EVO8 ECU in my car now and had a sniff check done after the engine swap and have done a couple of engine swaps on cars while I lived in Arizona with the same results. They emissions test based on the year/make of vehicle not the engine. Your comment made me do a bit of research and from reading threw a couple of docs on line it could go either way depending on what you are trying to accomplish, but both read the same way. According to both CARB and the EPA docs I looked at it could be argued that swapping an LS1 (just as an example) into an eclipse is 100% totally illegal no matter how you look at it. swapping in the same model engine from another car whether it is a 6 bolt 4G63T or 7 bolt 4g63T doesn't matter "controlled vehicles are certified to the year of the vehicle or newer, and to the same or a more stringent new vehicle certification standard" as per CARB guidelines. So it could go either way in a 1G, or at least that is how I interpret it.

http://www.epa.gov/compliance/resources/policies/civil/caa/mobile/engswitch.pdf

Engine Change Guidelines

 

[2g4me82]

After thinking about this you would need a computer from donor vehicle and the entire wiring harness from computer to engine and the entire harness behind the dash, the junction Box and the ETACECU for it to work.

Best thing to do is take motor and trans out and dash and then do the swap, depending on the emissions system of the older chassis you may have to change the fuel rail if it has a fuel return nozzle to a hose to the fuel tank on it and you would have to change the Instrument cluster bc the check engine light is not the same and other functions that the computer will display inside the cluster and you would have to change the charcoal canister to one that has a Ventilation valve to the tank or to the throttle body this is not to be confused with the purge valve, those are on most vehicles ventilation valves are in canisters if the fuel system burns all the fuel inside the combustiin chamber and all vapors are sent to canister then back to tank, these are all the things you would need to do a swap of that caliber. its really not hard if everything is already gutted from both donor and project vehicles

 

[steve]

After thinking about this you would need a computer from donor vehicle and the entire wiring harness from computer to engine and the entire harness behind the dash, the junction Box and the ETACECU for it to work.

This is a 10 year old thread and I think you are overthinking it.
Even back in 2012 all it took was an adapter to support a 2g style ECU from the 1G ECU harness. I have one based on the work Hal Landry did that I used to test 2g ECUs in my GSX.

It's tedious to connect all the pins up and if you were going to drive it much you'd want DSMLink or a 98/99 ECU so you could disable some the the 2g features not present in a 1g.

There was little reason for it (note the OP didn't have a solid need) and less so today.

 

[2g4me82]

After thinking about this you would need a computer from donor vehicle and the entire wiring harness from computer to engine and the entire harness behind the dash, the junction Box and the ETACECU for it to work.

Best thing to do is take motor and trans out and dash and then do the swap, depending on the emissions system of the older chassis you may have to change the fuel rail if it has a fuel return nozzle to a hose to the fuel tank on it and you would have to change the Instrument cluster bc the check engine light is not the same and other functions that the computer will display inside the cluster and you would have to change the charcoal canister to one that has a Ventilation valve to the tank or to the throttle body this is not to be confused with the purge valve, those are on most vehicles ventilation valves are in canisters if the fuel system burns all the fuel inside the combustiin chamber and all vapors are sent to canister then back to tank, these are all the things you would need to do a swap of that caliber. its really not hard if everything is already gutted from both donor and project vehicles

Can you show me the adapter younare referring to

 

[motomattx]

I have mad adapter harness's for running a 1g ecu in a 2g (for the Linkecu plug in ecu since they dont make a plug in ecu for the 2g) and for running a 2g ecu in a 1g to be able to run the black box ecu in the 1g, it can be done as said but it takes some work and locating and buying the plugs to do it.

 

[steve]

Keep in mind that this thread is about 1g's not 2gNT's. I cant's speak to issues with the 95 Chrysler ECU not being OBD2.

 

[dondmon]

You can pick up a used eprom ecu and dsmlink v2 for 300 or less. It would be a lot easier than redoing the harness.

Where, please tell me where?