ecu swap?????

[Crxce]

I have a 88 rex dx doing the mpfi swap this weekend hopefully what is the best ecu i can get, out of what car? i know there is a couple i can use but is one better than the other? thanks

[jeef]

the pm6 out of an si...

[aces1980]

or u could use an ecu from a 89 teg i think that'll work too. not to sure. but it works on my si

[91civicDXdude]

okay here goes, this will set the record straight

the PM6 is the best ECU to use with a non-OBD engine. sure the pg7 integra ecu supposedly has better fuel maps and such but realize that eh pm6 was made for an MPFI single cam engine whereas the teg was made for a dohc engine.

Also, with the pg7 ecu, you have a 7500-7800 rpm rev limit and its too tempting to rev it that high just because. but what this will do is give you a little fun thing called floated valves and you will blow your engine up.

just my $.02

[aces1980]

i nerver thought of that. Thanks for the info. I think i'll just take my off and replace it with my old pm6 good thing i didn't sell it?

[Jmunk]

The pm6 form a '91 Si is the best one to get.

[IM4U2NV81]

a d series engine is mechanically stable up to 7650 rpm and safe up till then. With a stock cam, 7800 rpm is no problem with the exception you may lose some life to your valve train in regards to about 130,000 miles instead of 150,000. My $.02

[mellowboy]

You'd be str8 with pm6 ecu

[Crxce]

a guy at the junk yard is going to locate a ecu for me and when he does how do i know if its really a pm6 does it say it on the ecu?

[mellowboy]

Originally posted by Crxce
a guy at the junk yard is going to locate a ecu for me and when he does how do i know if its really a pm6 does it say it on the ecu?

IT'll say pm6 on the bar code tag thing.