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View Full Version : B20vtec Idling at 4k wtf?



DaRussian
03-22-2010, 06:35 PM
I cranked up my b20v and it sputters and puffs and then after you rev it up it stays at about 4k rpm with the throttle body being closed. anybody have any idea what it could be?
b20b block
b16a2 head
p30ecu

SLow_POke
03-22-2010, 06:55 PM
didnt you post a few days ago? running strong.?

anyway is ur gas pedal sticking try kicking it back, check if u have the idle screw on right on ur TB.

solblu
03-22-2010, 08:22 PM
make sure the throttle cable moves freely and not too tight, keeping the TB open.

Also try checking for any vacuum leaks on the intake manifold.

DaRussian
03-22-2010, 09:00 PM
throttle being closed all the way it idles at 4

SLow_POke
03-22-2010, 09:07 PM
IMO one of a few things. your Idle screw is either way off or not there at all. MAJOR vac leak, busted Tb gasket

DaRussian
03-22-2010, 09:34 PM
yea i just thought about it, it has to be getting somewhere if the butterflies are closed. Thanks for the help im gonna check it out tomorrow

B20B!Ithink?
03-24-2010, 04:22 PM
didnt you post a few days ago? running strong.?

anyway is ur gas pedal sticking try kicking it back, check if u have the idle screw on right on ur TB.
LOL naw that was me dude and i had a small vacuum leak that caused mine to idle at 2500 it was the intake mani gasket so check the throttle cable or for vacuum leaks just spray starter fluid everywhere!

RHD_Joe
03-30-2010, 05:47 PM
vacum leak?? thats what it sounds like

JDM onlyy
03-30-2010, 07:45 PM
vacum leak?? thats what it sounds like

x2 but a very big one. sounds like when I left the brake booster hose off and I started the car one time....