Decel Pop

Lester532

Turbocharged
Joined
May 3, 2008
Messages
928
Location
Cottage Hills, IL
Need a little help from the Rocket Scientists.

I've been trying to get ride of decel pop since installing triple filters. I've been adding to the F trim at zero throttle between 100-2200 rpm and a little at 1% throttle in the same range. It's gotten better but I still get some loud popping around 1500 rpm. I can control it with just a little throttle or pulling the clutch.

It rums great at all power settings except as mentioned , no flat spots, the idle is okay.

The F and L tables are the same as Hanso's map but I replaced the ignition table with Tripp's K&N underseat ignition tables. This seamed to help with the popping and it runs smoother at lower power settings.

I have a 2005 standard with TORs, CAT eliminator, and triple K&N filters.

Would it help to un-check the O2 sensor ?

I've attached the current map I'm using.
 

Attachments

  • TORS K&N NO CAT 6700RPM 100CFAN -5.5% speed -edit 4 -with Trip underseat ignition -.hex
    179.4 KB · Views: 126
my '09 classic popped and banged on decel and i loved it

the roadster doesnt do it so much but as the bike ages its getting more frequent......
 
stealth said:
my '09 classic popped and banged on decel and i loved it

the roadster doesnt do it so much but as the bike ages its getting more frequent......
Click to expand...

I don't mind a little pop. But when I hear a bang that make wonder if it will blow my mufflers off I get a little concerned.
 
Wish I could help you with your map, it is the same one I am running in my bike and it was without question going Bang, Bang Bang, and not pop, pop, pop.... I have the PCV on my bike and added 10% to the zero throttle position from 1500 to 7000 rpm in the fuel table. The banging and the popping is now gone... just a nice deep, mean ass sounding rumble on decel now...
 
I would be checking for air leaks in exhaust and also the flanges between the Throttle bodies and engine head if you cant find any leaks here is your map back to yo with the word "decel" added to name and the L tables changed to allow for decel poping
 

Attachments

  • TORS decel K&N NO CAT 6700RPM 100CFAN -5.5% speed -edit 4 -with Trip underseat ignition -.hex
    179.4 KB · Views: 152
Thanks Hanso I'll give it a try after another check for leaks. I've looked before and didn't find any but it won't hurt to check again.

I had been adding to the F tables was I barking up the wrong tree? Do you think I should return the F tables to the original map ?
 
Hans, Did you send the right map? I do not see any changes to the tables from the map I have in my bike....
 
yes sorry I forgot to tell you that, it if you remember what they were that would be good
 
bonecarver said:
Hans, Did you send the right map? I do not see any changes to the tables from the map I have in my bike....
Click to expand...
he hads 0's in his 0% throttle in the L tables this is where the decel pop comes from unless there is a airleak
 
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