Honda — Exhaust fumes warning light in dashboard panel

Address:

4-39b rachapalem (vil), puttur (post), Chittoor (district),pin 517583

While driving the vehicle in front dashboard panel exhaust fumes warning is appearing in panel.last 2 months onwards I'm facing this problem, I purchased a Honda amaze s idtech vehicle I brought from express Honda from tirupati.my vehicle is still in warranty, earlier the show room told me that it's a issue of catalic converter issue even after changing the above said component still problem is not solved.