Hesitation when cold

mercutio · Post by **mercutio** » Tue Mar 31, 2015 6:07 pm

means the iab's may not be opening properly or at all

scouse boy · Post by **scouse boy** » Tue Mar 31, 2015 7:40 pm

But once warm it's fine mate... how would I go about fixing this? Thanks, Craig

scouse boy · Post by **scouse boy** » Mon Apr 13, 2015 5:58 pm

Anyone??

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Wed Apr 15, 2015 11:58 pm

Free bump.

Not read enough about how the IAB's are operated, to be able to offer any advice yet, but hopefully someone on here will have?

Post by **ek9sid** » Thu Apr 16, 2015 10:04 am

Don't even know what a iab is lol

Post by **Lude-dude** » Thu Apr 16, 2015 10:14 am

been a while since I had them in my intake

but on standard intake manifold is there not a way to manually move them, at least to see if they are stuck

they are butterfly plates, they could possibly be stuck with gunk

scouse boy · Post by **scouse boy** » Thu Apr 16, 2015 8:47 pm

I'll take a look at the weekend... thanks chaps

Post by **vanzep** » Fri Apr 17, 2015 6:33 pm

Donald wrote:
wurlycorner wrote:
vanzep wrote:its 2800rpm or 3200rpm
Hmm, yes, so around where the hessitation is that he's seeing then...
So what does that mean then?

sorry i missed this post - there is a butterfly valve in the air intake resonator (which sits in the wheel arch on the drivers side)
this cant get corroded or gunked up and it can lead to it sticking a bit so you get a hesitation around 3k rpm

should be easy enough to remove and check its working ok - just jack up the car up at the front, remove the wheel, unclip half the mudflap and remove the 3 bolts on the box and remove it - clean/lube the butterfly valve and stem and refit it

hondansxr · Post by **hondansxr** » Fri Apr 17, 2015 7:15 pm

Sounds like an overrich because the 02 sensor is out of range until it warms up. ask your local mot station to put the emmisions pipe up its exhaust see if it is in range .

Post by **Merlin** » Thu May 14, 2015 1:31 pm

@scouse boy I seemed to have solved my issue. Have a read http://www.ludegeneration.co.uk/honda-p ... 15963.html