Zc Ecu In A Stock Crx Hf?

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Senior Member
ok i have a crx HF and i am putting a ZC motor in it and i was wondering if i can keep my stock ECU or do i absolutely HAVE to buy the ZC? or would it be better to just stick a CRX SI ECU in there? let me know what is compatible with what ..thnx


Junior Member
you can use an 88-91 civic si ecu.....which is a PM6 you can use an 88-89 Integra ecu or a ZC ecu.....but you MUST make sure that it's a 5 speed ecu or it won't work. I think that the Integra ecu is the best because the zc ecu has a 112mph limit on it, the integra ecu doesn't