i posted a thread about a week about on a problem with my 98 mustang gt 4.6l engine hesitation and bucking. it only does it under load around 3000-4500 rpm at operating temp. i came across a new symptom that i never noticed before....i have a stock catalytic setup but after it bogs down i start to smell rotten eggs, and when i go under the car right after i turn it a catalytic chamber on the driver side right next to my tranny make a sizzling popping sound, like pop rocks...it is not the usual poping noises you would expect to hear...its almost sounds like a pot on the stove with the lid on and some popcorn inside....haha. i get a check engine light...code p1443 Evap AC purge Valve fault (EGR). any help or idea would help...need to get fixed.
p.s. everything is stock
p.s. everything is stock