Is there a obd-1 pr3 ecu?
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Is there a obd-1 pr3 ecu?
I am getting a second gen b16a and it is coming with a pr3 ecu. I have searched through some of the archives and a few people siad they had an obd1 pr3, but there wasnt much info about it. Anyways, I am courious if the obd1 pr3 does exist and if so, what makes it different than the p30? Thanks
#2
Re: Is there a obd-1 pr3 ecu? (flyby360)
j0e! u finally made it! i'd like to be the first to welcome you to Honda-Tech! can anybody help this guy out?! i went and checked out the engine for him today and everything looked good, except it came w/ a pr3 ecu. that's the same ecu that i'm runnin' for my first gen b16 in my '88 hatch. will this work on his swap? thanks for any help!
#3
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Re: Is there a obd-1 pr3 ecu? (flyby360)
The PR3 ECU is pre ODB1.
The difference between the PR3 and P30 are:
* the connectors
* the PR3 ECU uses two O2 sensors, the P30 only one (and different types of O2 sensors)
* the two ECU's uses different types of distributors
* and of course, the internals of the ECU's are complete diffrent (processor, eprom, almost everthing)
If you want to swap the engine/ecu you have to take care about the O2 sensors and the distributor, the rest should work.
You can even check out http://www.hondata.com . They have some informations about the different ECU's on there site. Check the TECH section.
The difference between the PR3 and P30 are:
* the connectors
* the PR3 ECU uses two O2 sensors, the P30 only one (and different types of O2 sensors)
* the two ECU's uses different types of distributors
* and of course, the internals of the ECU's are complete diffrent (processor, eprom, almost everthing)
If you want to swap the engine/ecu you have to take care about the O2 sensors and the distributor, the rest should work.
You can even check out http://www.hondata.com . They have some informations about the different ECU's on there site. Check the TECH section.
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Re: Is there a obd-1 pr3 ecu? (doc)
actually when i bought my gen 2 b16a i got an obd-1 pr3... so yes it does exist.. there are not significant differences though. If you are stuck on finding a vtec ecu, just graba p28 adn get eg6ajk to put in a p30 chip and remove the speed limiter and adjust the vtec crossover to wherever you would like it.
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94, applications, chips, del, difference, distributor, ecu, honda, info, obd, obd1, p30, pr3, sol, specs