S300 and ECU Questions

hayhursm · Post by **hayhursm** » Fri Apr 06, 2007 7:16 am

I have a 2000 Civic Si (if that is relevant) that I would like to install a Hondata S300 in. I have heard mixed feedback about using either a P28 or P72 ECU, for example: using a P72 ECU will allow me to retain my stock knock sensor but I was told that is useless when tuning a boosted vehicle with a built bottom end (forged pistons, rods, ect...) Can anyone verify this? Does anyone recommend a different ECU other than the two I just mentioned? Also, does using the PWM boost controller output require a hardware change on the Hondata system or can it simply be activated by turning it on in the SManager?

Post by **Spunkster** » Fri Apr 06, 2007 10:12 am

You can use any of the compatible OBD1 ecus from the list at http://www.hondata.com/ecus.html

The knock sensor will probably pick up a lot of noise that is not knock form the forged pistons.

Whichever ecu you use, must be socketed with special components to use the PWM output. The s300 itself does not need any changes.

hayhursm · Post by **hayhursm** » Fri Apr 06, 2007 2:18 pm

Do you recommend one of the ECU's over the other? How is the PWM output connected to the boost solenoid, do I have to purchase some connector pins from a Honda dealership and install it into one of the ECU connectors?

Post by **Spunkster** » Fri Apr 06, 2007 4:51 pm

Install the Smanager software from our website and then copy the link below and paste it into internet explorer:

mk:@MSITStore:C:\Program%20Files\SManager\SManager.chm::/boostcontrol.htm