I just did the multi-port conversion in to my crx and I have a PR4 ECU and a PM6 ECU and I was wondering what the difference was in them.....I heard that the PR4 ECU will give you more fule and that the PM6 ECU will give you a higher RPMs........but I'am not sure so just post what ever you know
Thanks,
kyle

 

if any thing id say go with the pr4 , are u on sohc or ls

 

sohc stock d-seris

 

pr4

 

sombody said that if you use the PR4 you will have to do the timeing differently......

 

pr4

 

run the pr4. if it runs like crap...advance it a tooth. Hows the dizzy?

 

we tried the pr4 ECU and it was acting like it was hitting a revlimiter at 3200 rpm's so we pulled the #1 spark plug off and nothing happened so we did a compression test and it was good, so we seen if it had spark and it did, so I'am not to sure what was up with that, so we tried the PM6 ECU and it reved up normal....so we pulled the plug off of that and same thing nothing happened.......so if anybody knows whats the matter with it then let me know......also we can't get the timing set on it we grounded b20 and you can't see anything happening with the timing light......so if you know how to do the timing with the PM6 ECU then let me know........P.S the dizzy works great see my race car in my signature I'll be raceing this saturday if I get this problem worked out......feel free to post anything you know....... Thanks guys

 

Are you throwing any codes? If not it might be that the PR4 is an auto ecu. I will bring over the manual one tom. for you to try. Also, make sure all the pins going to the ecu are pushed into the clip. Also, check pm.

 

I got the fule injector code.....