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Discussion Starter #1 (Edited)
I bought a 90 CRX Si with a D16 in it. But the ECU is bad. I know that they use PM6's and I went looking for them and ran into a few problems. I know you can easily chip the 90-91, but how can you tell which ones are from those years without having to open it up and look? Also, I found 2 ECU's on eBay, for an example, that have almost the same number on them. Here's what they both have:


Does the difference in the "A###" mean anything? I know that the "A" means it's american, but I don't know what the other numbers mean. Can someone explain the difference?

Thanks in advance!
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