Upgraded to PM7

I finally upgraded my ECU to a PM7-905 from a 1991 Civic Si facelift model (JDM).

WOW. Theres way more power now, especially down low. I don't have to change gears just before max power anymore and the engine also doesn't blow steam in the cold anymore, or burst smoke on hard gear changes.

Definately a happy me. 8)

Comments

  • akiraboyakiraboy HondaCivicWagon.com Founder
    Hey P what do you know about a pm7 meant for the automatic RT4wd? Is there one or am I wrong on this
  • HaydzHaydz Moderator
    As far as i know all of the RTi/RT4WD were PM6..

    PM6 - 1.6 D16A6, SOHC ZC
    PM7 - 1.6 DOHC ZC

    Theres a range of different PM7's, as with the PM6's. The one i got was the last type they made, it has minor adjustments in the A/F ratios (especially down low), reads the sensors a bit differently and has a cleaner rev limiter.
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