installed brocks street meg, pcv with brocks map, and bmc race filter last night. Overall she's running awesome, but the idle is hanging up sometimes. When coming to a stop and pull in the clutch, the rpm will drop to 1500 and stay there for 3 or 4 seconds before dropping down to normal idle at 1100 rpm, any ideas?
idle hanging up after full exhaust install, need help
- Thread starter hemi
- Start date
Dozerdriver
Registered
Do you have a tre of any type on your bike? Did you put the o2 sensor jumper on?
yeah, plenty of play in the cables. Just took it out and it was doing it again. Checked all vacuum hoses around air box, checked wire tap from pcv and it's making a solid connection. Maybe i'm just being overly paranoid and it did this before and i just didn't notice until now? Can't find anything wrong, and the pc is hooked up correctly. Think the bike just needs to adjust? Haven't had a chance since i put it on to ride over 20 miles, just short little trips to the gas station and back
Dozerdriver
Registered
It sounds fuel or air related, so I would look towards the PCV as the issue. Did you hook the injector connections to the lower ones? Did you load the map or someone else? If everything is good on those then I would try unhooking the PCV and see if it still does it.
jefro
Registered
I'd also zero out the TPS in the ECU and the PCV. Mine was rich at idle and just off idle until I did it-yours sounds like it may be a touch lean. There's a good thread on it in Brocks' forum but you have to be a member to view it:
http://www.brockracing.com/forum/display_topic_threads.asp?ForumID=20&TopicID=446&PagePosition=1
http://www.brockracing.com/forum/display_topic_threads.asp?ForumID=20&TopicID=446&PagePosition=1
blownws6
Registered
i'm registered on the brocks forum, but it won't let me access the post for some reason. I did hook up the laptop to the pcv with the bike running, just at idle the throttle was at 100%. Re-calibrated it and it was showing 0 throttle at idle. Took it out and it still did it. I'm thinkin maybe it's just the pc adjusting the fuel/air ratio as the idle fluctuates. It only does it randomly, only reason i notice it does it when i come to a stop, is there is a slight buzz from the bike bc it idles down to about 1300rpm for a few seconds. Maybe it did this before and i just didn't notice until i got the full system and it's breathing much better. Does the pc make the idle fluctuate more than running the stock setup with no pc
As any downloaded fuel map is pretty hit n miss 
I'd have your A/F checked and adjusted and all should be good 
Just a quick note ............. if you have balanced throttle bodies you will need to have base idles reset (SDS tool) Also ICS would need to be held stable whilst balancing.
I'd have your A/F checked and adjusted and all should be good Just a quick note ............. if you have balanced throttle bodies you will need to have base idles reset (SDS tool) Also ICS would need to be held stable whilst balancing.
Similar threads
