BETOMARO99

OK, I RECENTLY HAD PROBLEMS WITH MY CAR THE SES LIGHT WAS POPPING ON AND OFF WHEN I READ OUT THE CODES IT WAS PO102, PO171 AND PO174. SO I CLEAN MY AIR FILTER AND MAF WITH THAT DONE THE PO102 WAS CLEAR I ALSO HAD A AIR LEAK BY MY EGR AND THAT SO FAR CLEARED PO171 AND PO174 BUT NOW I HAVE THIS POPPING PROBLEM THREW MY EXHUAST WHEN I FLOOR IT AND ONLY WHEN I FLOOR IT???? PLEASE HELP

G Engines

An engine will pop out the exhaust when it has too much fuel under a heavy load are there any changes you have made to it lately.