Low rpm buck, hesitation

ShelbyZ87 · 09-02-2010, 09:19 PM

Hey guys, recently started having a problem with my FD. At low rpms up to about 3500 the car bucks/hesitates really bad, after 3500 the car runs beautiful. I just installed a new throttle position sensor and adjusted it within spec, due to my car hunting for idle after it was warmed up and this low rpm buck/hesitation, since installing it the idle is fine but the buck/hesitation is still there. The engine has 6000 miles on the rebuild. mods are a pfs intercooler and exhaust everything else is stock.

Any ideas to diagnose this would be appreciated.

09-02-2010, 09:19 PM	#1
ShelbyZ87 The Newbie Join Date: Aug 2010 Location: Illinois Posts: 10 Rep Power: 0	Low rpm buck, hesitation Hey guys, recently started having a problem with my FD. At low rpms up to about 3500 the car bucks/hesitates really bad, after 3500 the car runs beautiful. I just installed a new throttle position sensor and adjusted it within spec, due to my car hunting for idle after it was warmed up and this low rpm buck/hesitation, since installing it the idle is fine but the buck/hesitation is still there. The engine has 6000 miles on the rebuild. mods are a pfs intercooler and exhaust everything else is stock. Any ideas to diagnose this would be appreciated.