I have a 90 CRX DX with A/T and I'm about do an mpfi swap and eventually a man tranny swap as well. But, what I need to know is, which ecu I use in the meantime? The pm5? or the pm6? or pm7? The 5's no good for power, and won' t fire the injectors correctly, but it will work the A/T. And, the pm6 would be good for MPFI. But will it work the trans? Or should I just wait for a man trans to turn up and do them at the same time. Any body got any experience with running the pm5
with MPFI and Auto trans

Thanks


Modified by 4crx4me at 7:37 PM 5/29/2003

 

The PM5 will not run a MPFI car. I would wait and do everything at once then use the Si PM6 ECU. I don't think they make an auto MPFI ECU in the 88-91 Civic/CRX models, possibly a rare JDM/EDM PM7 ZC ECU might exist? The only thing I can think of is if you need an OBD0 auto ECU then you could use a 90-91 Integra Auto PR4 ECU to run the car MPFI with an auto tranny.