Hey what can cause lagging on a JDM D15B Vtec? I mean it lags around 2,000-3,600rpm and then gets a lot of power! Any help? and it just started doing it, all i have done is change the air filter in my CAI.WTF

 

Lack of displacement.

Unless it's really like shaking your brain or bogging out, then it's likely just the lack of power.

My y7 doesn't do **** before ~4000 rpms.

Are you getting any cels?

 

somthing wrong with the tune.. too ruch at that pooint then leaning out making power..

vtec point set too low..

(timing off).. most likely

bad fuel filter.. man it can be many things.. make sure u have no enigne codes and all grounds are good first then go through the car step by step part by part and find out its kinda process of elimination ..

 

No cels. I mean i just took out that ghetto *** filter that i got on my egay CAI and boom its lagging at that range i specified. I mean i have OBX header,Catback2.25,CAI,MSD coil ****,light flywheel,stage 3 clutch. If that helps. But i dont get it i do feela better pull at 4000 and Vtec sounds loud as expletive but why is it lagging at low rpm?Thanx for the help so far

 

get it tuned and that lag will be gone you letting more air in and not any more fuel.. get a chipped ecu or just a afc bring it to a dyno and let them tune it out..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by THEDirtyDseriesWOOT &raquo;</TD></TR><TR><TD CLASS="quote">get it tuned and that lag will be gone you letting more air in and not any more fuel.. get a chipped ecu or just a afc bring it to a dyno and let them tune it out..</TD></TR></TABLE>Well here is the ****. Currently i have a chipped p28 ecu w/B16 maps.Could that have screwed everything up now that i changed a air filter?Maybe now because its breathing better?Thanx for your help

 

umm b16 maps is your prob..

just clip j.. um j-10 i think to make it back to a stock p28 it should run much better with that // i think its j-10 im not sure been a while since i dealt with chipped ecu's goto pgmfi.org to be sure

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by THEDirtyDseriesWOOT &raquo;</TD></TR><TR><TD CLASS="quote">umm b16 maps is your prob..

just clip j.. um j-10 i think to make it back to a stock p28 it should run much better with that // i think its j-10 im not sure been a while since i dealt with chipped ecu's goto pgmfi.org to be sure </TD></TR></TABLE> Ok i already received a chip w/P08 maps im guessing i should replace it now huh? Hopefully that would help but my doubt is why is it doing it now that i changed the air filter?

 

more air.. all you have to do it clip a jumper wire on the cu and it will revert to stock maps if its p28 it will run your car liek a top

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by THEDirtyDseriesWOOT &raquo;</TD></TR><TR><TD CLASS="quote">more air.. all you have to do it clip a jumper wire on the cu and it will revert to stock maps if its p28 it will run your car liek a top</TD></TR></TABLE>Hey i have also noticed that sometimes for some ghetto *** reason my rpm tries to drop when im at idle! How do i fix that It also just started doing it

 

tries to drop from what? idle .. drving and the guage drops but the mtoors is still revving.. whaT

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by THEDirtyDseriesWOOT &raquo;</TD></TR><TR><TD CLASS="quote">tries to drop from what? idle .. drving and the guage drops but the mtoors is still revving.. whaT</TD></TR></TABLE>yeah my bad at idle.

 

Bump! Any other ideas?