ODB I or ODB II
Thread Starter
Burning Brakes
Joined: Dec 2000
Posts: 1,023
Likes: 0
From: Marietta, South Carolina, USA
ODB I or ODB II
I was told that if you have a car that has a ODB II and you want to mod the motor that it is best to change it to ODB I, he told me that it is better to repromgram it then the other is that right?
Drifting
Joined: Mar 1999
Posts: 1,931
Likes: 1
From: Norcross GA
Re: ODB I or ODB II (MrJay)
You do realize all your stuff listed is ODB1, right? ODBII started in 94.
Your question comes from the fact that currently there is more ODBI stuff out there than ODBII. Most people are more familiar w/ ODBI, right now. Ease of use comes from, which, and how familiar you are with your tools.
Your question comes from the fact that currently there is more ODBI stuff out there than ODBII. Most people are more familiar w/ ODBI, right now. Ease of use comes from, which, and how familiar you are with your tools.
Thread Starter
Burning Brakes
Joined: Dec 2000
Posts: 1,023
Likes: 0
From: Marietta, South Carolina, USA
Re: ODB I or ODB II (MrJay)
Yes I know my car is ODB I, my friend has a 98 Firebird and he was telling me that he has to go to ODB I when he starts to do some mods because he was told that it was better, that is why I was asking about it.
Jay
Jay
Team Owner
Joined: Apr 2001
Posts: 22,267
Likes: 3
From: Dallas TX
Re: ODB I or ODB II (ZylaRace)
Actually, full OBD-II started in '96. It was required on all vehicles as of Jan '96. Now, that said, my '94 isn't OBD-I and it isn't OBD-II, it is a sort of hybrid. I can't put a chip in it, yet it doesn't have all the sensors of an OBD-II system. Why they did this, I have no clue, but I wish I could just pop a chip in for $159 rather than have it reprogrammed for $350! :eek:
Drifting
Joined: Mar 2000
Posts: 1,630
Likes: 1
From: Woodstock GA
Re: ODB I or ODB II (Glock'94)
94 and 95 are OBDI cars with an OBDII ALDL connector it does have a partical OBDII piggy backed on it but if will not effect drivibility in any way it was a GM field test of some of it's systems, the thing that you don't like is the fact that it uses a EEPROM ECM which has to be programed instead of the early cars that had replaceable PROMs, but don't let that bother you to much the ways things are getting it cost almost as much now to get a good custom made chip as it would to get your ECM reprogramed. As for OBDI or OBDII if the car comes with OBDII I would stay with it just think of some of the things you have with an ONDII system that you don't have with a OBDI system like miss fire detection which enables you to graph miss fires sure comes in handy if you are tring to find an intermitten miss. I see a lot of people out there able to do a lot of mods to thier OBDII cars and not have a problem, just something to think about.
David Fulcher
David Fulcher
Pro
Joined: Jun 2001
Posts: 697
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From: College Station Tx
Re: ODB I or ODB II (David-F)
You can really only convert OBDII LT1 motors back to OBDI - since both computers are pin compatible. There are no obdI options for the LS1 vehicles.
Glock: LT1 Edit all the way! You won't be lamenting not having a chip based solution! Being able to flash program your car means you can set it up how you like it, not how someone else thinks you will. Go for it!
Glock: LT1 Edit all the way! You won't be lamenting not having a chip based solution! Being able to flash program your car means you can set it up how you like it, not how someone else thinks you will. Go for it!
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Thread Starter
Burning Brakes
Joined: Dec 2000
Posts: 1,023
Likes: 0
From: Marietta, South Carolina, USA
Re: ODB I or ODB II (MrJay)
Where would you take your ODB II to have it reprogramed or can you do it with this LT1 Edit?
It sounds like I dont want to have ODB III why would they have to know what I have done to the computer?
Thanks
It sounds like I dont want to have ODB III why would they have to know what I have done to the computer?
Thanks
Melting Slicks
Joined: Dec 1999
Posts: 2,816
Likes: 2
From: Austin, TX
Re: ODB I or ODB II (MrJay)
http://www.carputing.com is the source for LT1 Edit. They came out with an OBDII version earlier this year (which I have). With this, you can do all of the same computer mods that you can with OBDI cars. It also lets you disable all of the OBD2 goodies (like cat tests) so you don't have to buy o2 sims.
The biggest downside I've found with an OBDII computer is that there aren't many decent cheap/free scan tools available like there are for OBDI. I was forced to buy the LT1-edit (about $500) and also an Autotap (about $200). However, that's still cheaper and easier than converting to OBD1.
Ken Kelly at Carputing is a great resource and a real nice guy. His eMail address is on their web site.
The biggest downside I've found with an OBDII computer is that there aren't many decent cheap/free scan tools available like there are for OBDI. I was forced to buy the LT1-edit (about $500) and also an Autotap (about $200). However, that's still cheaper and easier than converting to OBD1.
Ken Kelly at Carputing is a great resource and a real nice guy. His eMail address is on their web site.
Melting Slicks
Joined: May 1999
Posts: 2,037
Likes: 0
From: Sarasota FL
Re: ODB I or ODB II (MrJay)
http://www.tunercat.com has OBD1 LT1 stuff and are working on OBD2 stuff. It's much cheaper.
