1999 Pontiac idles at 1200-1500 rpm why please help?

Answer 1

If you replaced,,,checked the ICM,MAF sensor,air leaks with out luck,then Check the throtle position sensor Im pretty sure that's the problem (auto Zone has it for about 32 to 46 dls) it took me 2 weeks to figure it out the problem on my 2005 pontiac Montana ext. 3.4L , (took it to 3 mechanics and they told me,cant find the problem)so i found it my self.!