Will someone please educate me on the advantages of this popular conversion, adnby converting to OBDI does thisa mean like the 93 f-body cars u have to change from vented to non vented and from MAF to speed density? also PLEASE! check out my post on page 3 titled "my POS is driving me insaine"
Thanx
rob

 

Advantages of converting to OBDI:

- Cheaper programming software
- Cheaper or free scanning software
- Ignored rear O2 sensors (no need for simulators)
- It has less codes to throw than the OBDII

Disadvantages:

- You won't be able to pass the OBDII emission test with it.
- Some experience shifting problems with high stall converters on A4 cars.

Overall, I think it's a good mod if you will be doing tuning and logging yourself in the future. If not, you may consider getting your OBDII programmed instead.

You will not have to change the opti or the MAF. The only thing you need to change is the knock sensor, if you won't go with a plug and play kit like the one I offer.

 

I just got my PCM from Ion (did the OBD1 conversion), great product!!! It is as easy as plug and play.

 

I had the same experience as 96blackbeast, plug and play. Now I no longer have to look at that freakin SES light because of my INOP (now gone) air pump. My long tube header and off road y-pipe install should go well as I no longer have to worry about the rear O2 sensors. Now I can buy OBDI tuning software for much cheaper than OBDII software and I can use free OBDI scan software. The conversion is well worth it if you plan on modifying your car very much and don't have stringent emissions concerns.

JeffA

 

As it was mentioned, the big disatvantage is not being able to pass the year-specific emissions tests for your car. I know there are a lot of places in the country that (for right now) don't have emissions tests but what tomorrow will bring could be a different story. I guess the real safe thing to do would be to not discard anything emission-related that you might take off your car, just in case your hard working government officials decide that you too need to have a clean tailpipe.

 

Does this mean that I can unplug or remove my 02 sensors and not have to worry about one going bad, but my car will still run fine.

 

No, if you have a 94, you don't have rear O2s.

 

Do the OBDII's have 2 on each side. The reason I asked about being able to disconnect it is because I had an O2 go bad a little while back and I unplugged it until I got another 02 and it ran fine. By the way I sent you a PM on the other board about 30 minutes ago.

 

Yes, OBDIIs have a total of 4 O2s. Two on each side.
Your car ran "fine" because it went into a constant open loop mode. (same mode that it runs in before it warms up)
I'll reply to your PM in a sec.

 

Dont get in a hurry about the PM. I was just replying back to yours.