Is this true that with a p28 ecu the seconadry or the IAB,s are left open all the time or not. Just questioning this because disconnect the vacum source will leave them open all the time but I thought the p28 ecu with hondata doesnt use them anyway. Please let me know. If they do work I was looking at the Blacktrax spacer plate to replace them with.

Pat.

 

You are seriously confused.

1) P28s cannot control the IABs unmodified.

2) With hondata, you can use a nitrous output to control them if you must.

3) Why would you replace them if they're going to work? Do you want them in or not?

 

Which way is better on a boosted car in or out. Thats my real question.

Thanks

 

You can't make a blanket statement for all boosted cars like that.

Most likely, you're better off without, but I'd talk with your tuner first.

 

Im getten hondata s300 p28 soon. They I need alternate IAB output. Wat does dat mean ? Thnks

 

Have them wire in the IAB on the ECU its self. Thats what I did on my P06.

Can be found here.
<U>http://web.archive.org/web/20050427090454/www.pgmfi.org/twiki/bin/view/Library/AddIABToP28</U>

 

The alternate IAB control is built into the s300 software. Still confused about the open and closed option.

 

I run a p28 ecu with hondata s300 and deleted the iabs with the spacer plate by blacktraxx racing . No you dont need them but is there a difference with or without I dont know. Im running a boosted H23 and the dyno will tell the truth.