K20A2 with BDL 70 mm problem??

interceptor · Post by **interceptor** » Tue Jun 10, 2008 7:11 am

- serial number of your K-Pro - 01235
- the calibration (as an attachment) -attached
- a datalog of a problem (as an attachment) - attached
- what sort of vehicle you have - 2003 civic type-r k20a2(euro)
- what sort of ECU you are using k-pro
- anything about the car which has been modified from stock which may affect the ECU (don't include what sort of rims you have nor stereo etc).-BDL 70 mm butterfly dc header decat aem intake
- a specific description of the problem- After installing BDL butterfly poor idling occurs and when you give a little throttle engine revs between 2000-5000 rpm constantly.When going back to oem butterfly everything is fine.Any ideas??

magnEsium · Post by **magnEsium** » Tue Jun 10, 2008 8:54 am

vacuum leak

Post by **Spunkster** » Tue Jun 10, 2008 9:52 am

The BDL throttle body does not have propper idle control , so it probably won't idle very well with it. We have seen no real gain from big throttle bodies in testing.

interceptor · Post by **interceptor** » Tue Jun 10, 2008 3:57 pm

first of all thank you for your reply.I thought something was wrong with that butterfly too.Checked it and butterfly isn't closing completely.So engine sucks some air and idles poorly.But i don't understand the weird engine reaction when pressing the throttle a little.Can you see it at the datalog?Also negative MAP values?

Conquistadore · Post by **Conquistadore** » Tue Jul 15, 2008 3:30 pm

Have you tried rescaling the TPS in the KManager Software?
Parameters > Knock / TPS > Scale TPS

I have a 66mm BDL TB and had some issues...

http://www.hondata.net/forum/viewtopic.php?t=8205