Vehicle has no power on acceleration at 2000 rpms reeves up & down & backfires on 2004 Hyundai Tiburon

Setting still or accelerating No codes present at this time

by in Saint Petersburg, FL on October 22, 2013
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2 answers 2 comments
ANSWER by , October 22, 2013
COMMENT by , October 23, 2013
we already dropped the exhaust no change we also tried a tps mass air flow sensor & purge valve we regained power but the idle is surging between 1500 and 2000 rpms Thanks Shermanator
ANSWER by , October 22, 2013
Have the TPS checked!! The TPS circuit also needs to be checked, have had some problems on these vehicles!!!!
COMMENT by , October 23, 2013
tps has been replaced vehicle still surging could it be IAC it acts like you are pushing the gas pedal and letting up but its doing by itself. Is there a reprogram procedure when these parts are replaced?