Re: '92 Explorer Sport, High NO (PPM)
ok took awhile to get back to this..but this year explorer has no egr valve. i have looked all over, crawling under and over. Also as far as the running rough i'm thinking there is an electrical problem. I pulled the codes this morning off it and it's all over the chart. the codes read: 157, 158, 171, 172, 181, 185, 186, 187. everything is coming up as over voltage and under voltage.
'92 Explorer 309k and still going strong...
'97 Ranger catching up fast