2002 955i Issue I've Made.....

Hi guys

2002 Speed Triple 955i - UK....

I've just replaced the pipes that go from the IACV to the throttle body with 1/4 silicon vacuum hose, as the old ones were perished and split.




Just reassembled everything, starts OK, and will idle, but when I blip the throttle, the revs drop and it cuts out. I can hold the throttle open at say 2k - 3k RPM, but let go, and cuts out.

I guess I've done something to the IACV - any suggestions? (I did not knowingly change anything, just connected the new pipes).
Thanks.

 

Cheers for suggestions, I think I've covered all pipes to airbox, and all electrical connections. I've just taken it all apart again, and tried the check of the IACV stepper motor, and that seems to be doing what its supposed to. Checked seal on top of IACV. I bought an OBD cable and copy of TuneECU, but I'm struggling to see how to do a reset of the ECU, as it seems likely it needs to be reset after replacing pipes. Any advice there?
Thanks.

 

Also - Anybody think I would get a different result from fitting original replacement pipes I have since purchased, instead of the silicon hoses?