Donate to the MX-3.com Forums
View unanswered posts | View active topics It is currently November 22 2019, 4:15 PM



Reply to topic  [ 4 posts ] 
 OBD-II Swap 
Author Message
Regular Member

Joined: September 26 2011, 6:30 AM
Posts: 423
Location: USA,PA
Reply with quote
Post OBD-II Swap
So guys I finally did the swap, First off i'm going to do a quick run thru of what you need to do the swap and cost breakdown for everyones interest.

So if you want to swap to OBD-2 just for the ease of diag and actually being able to see real time date, along with smother powerband and slight better MPG's and are afraid of MS then this is the way to go.

Things your gunna need
OBD-II PCM ( Don't get one from a KLG4 it will not work!! ) 25$ shipped from ebay
MAF ( From a Milli )
IAT ( this ones pretty universal )
MAF/IAT harness ( the plugs with about 6-8" of wire ) $20 for the MAF/IAT and harness from a pick and pull
OBD-I - OBD-II harness adapter 165$ From a guy on the KL FB page, hes also on other forums

So total investment $210

Some things to know befor doing this, your check engine light will be on since all the PCM's are for auto transmissions so you thro atx codes along with an evap code and two O2 sensor codes since the OBD-II cars use post cat sensor as well as the pre-cat sensors this does not effect performance or MPG's

On another forum there has been some development to eliminate these codes by tricking the PCM by wiring in resistors and relays and such to fool the PCM to think the missing components are there. But if you don't mind the engine light then no need to bother.

Now to install the MAF and IAT you need to either cut up your old vaf to make a plug&play harness like I did or cut the vaf plug off and soder and shrink wrap the new plugs on to the harness. You will also need to run a wire from the MAF plug to a 12v key on source on the car some where. I do have detailed instructions on which wires go where just pm me and ill send you the info as I was asked not to post up the info.

heres a pic of the plug&play harness I made for the MAF/IAT
Image
note the red wire not connected to anything is the 12v source wire

After this pic i further heat shrunk the wires together put it in a wire loom and then wrapped it in electrical tape.

Here a pic of the OBD-I to OBD-II harness this can be made if you have the time and wiring diograms to figer it out.
Image

Any further questions feel free to post up and ill answer them best I can.


August 28 2013, 7:26 PM
Profile
Regular Member
User avatar

Joined: June 06 2013, 7:19 AM
Posts: 190
Location: Lehigh Valley, PA
Reply with quote
Post Re: OBD-II Swap
Looks good man, any chance you got to get using it yet? If so, hows it going?

_________________
Knowing you've spent too much on your car,
yet, you still want to keep modding. -priceless
^
|
boosted_bullet


93 Honda Accord LX - Wrecked
95 Honda Del Sol Si - Stolen
92 Honda Accord EX - Parted out
2000 Toyota Celica GTS - Cracked block and broken differential teeth
93 SE - ATX to MTX, work as always in progress
01 Toyota Celica GTS - DD

Worklog to be up soon, still... ...


August 30 2013, 3:13 AM
Profile
Regular Member

Joined: September 26 2011, 6:30 AM
Posts: 423
Location: USA,PA
Reply with quote
Post Re: OBD-II Swap
[LVPA]93GsSe wrote:
Looks good man, any chance you got to get using it yet? If so, hows it going?


I've been DD'ing the set up for about 2 weeks now and seems to run alot better then the OBD-! set up. Idel is better and the powerband is smother with the maf being able to meter better then the VAF. Only thing I have noticed is my gas milage sucks due to a bad O2 more over the OBD-1 set up but other then that I'd say it was a worth while mod.


August 31 2013, 6:39 PM
Profile
Regular Member
User avatar

Joined: June 06 2013, 7:19 AM
Posts: 190
Location: Lehigh Valley, PA
Reply with quote
Post Re: OBD-II Swap
Glad to hear, it sounded to be an interested endeavor.

_________________
Knowing you've spent too much on your car,
yet, you still want to keep modding. -priceless
^
|
boosted_bullet


93 Honda Accord LX - Wrecked
95 Honda Del Sol Si - Stolen
92 Honda Accord EX - Parted out
2000 Toyota Celica GTS - Cracked block and broken differential teeth
93 SE - ATX to MTX, work as always in progress
01 Toyota Celica GTS - DD

Worklog to be up soon, still... ...


September 02 2013, 12:00 AM
Profile
Display posts from previous:  Sort by  
Reply to topic   [ 4 posts ] 

Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
cron
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group.