I found a PR3-J01 and before I buy it I want to make sure that I can use it with my EG CX with a usdm b16a2. Will there be any chipping involved?

 

Why doesn't it "fit"? OBD-1 ECU with the corresponding Engine/Chassis. Could be automatic though.

 

I found it on ebay and it says its from civic/del sol in japan.

 

As long as it's an OBD1 PR3 5 speed ECU it'll work fine, They also came in an OBD0 version which wont work.

 

Try it and let us know.

 

I'm getting it

 

Why can't you get a different ecu and chipped with a basemap?

 

get a chipped ecu is much easier for you!

 

exactly!! Most PR3 ecu's are the older style OBD0, so be careful, you do not want one of those. The OBDI version is more rare, but does exist, i have had a couple, they are basically the same as a P30

 

So is he or are you paying more because of it's rarity?

 

paying more? It is worth the same as any P30....about $100-130

 

i would run a p28. and then if i really wanted to squeeze all of the power out of it, then and only then would i get it chipped and tuned. iwthen you would want your mound of bolt ons.

i am intrigued to know that there was an obd1 version of the pr3.

 

I would have a chipped and socketed ECU for that price. But W/E.

 

Why? P28s aren't nearly as special as people make them out to be (you can chip and convert nearly any OBD1 Civic/Integra ECU to vtec, the only real exception being most P07 VX ECUs). The PR3/P30 is actually the correct stock ECU to use in this case and can be chipped just as easily as a P28 can. Unchipped P28s work like crap on B-series engines. The way I see it if you aren't planning to pay the $400 - $500 for a good dyno tune, you might as well pay $120 - $130 for the correct ECU for the engine.

 

As 94EG8 said, P28s use the same board as a P06. I've converted several P06 and P75 ECUs to VTEC. They work perfectly.

A lot of places are charging about $100 to chip and ad VTEC, plus return shipping. I'll do it for $80 including return shipping if anyone is interested.

 

It is the EXACT same process to socket / chip a P30, OBD1 PR3, P06, P28 etc.. as long as it is a USDM ECU. The JDM OBD1 PR3 ECU's use a different style 74hc373 chip, but can still be socketed / chipped. If you aren't planning on modifying the engine and getting it tuned, then your best bet would to be to run the OBD1 PR3 or P30.

If you don't end up getting this ECU, we offer socketed P28 ECU's with a P30 basemap and a 90 day guarantee: http://www.hamotorsports.com/socketedp28.html which would be a better way to go if you are going to have it tuned and cheaper than buying the PR3 and then sending in to have socketed then tuned.

 

Its a obd1 ecu and I bought it.