Irunultras
New member
Hey guys...I need abit of help with someone who knows a bit about a 1987 corolla. It didn't pass smog and came back as a "no" failure. The guy said it was called a knox failure. I have the report and all else passed with flying colors except this. Im not a mechanic but know a bit about cars. Can 1 of you guys or gals help me with possible problems. Im being told it might be a EGR valve issue. does this pass the logic test for you guys.
Im also being told this vehicle doesn't have a EGR valve???????
If it does, where the heck is it located. It seems the easiest to replace. Car runs great, no blue smoke on start up ...just "no" failure..
thanks for any help
Im also being told this vehicle doesn't have a EGR valve???????
If it does, where the heck is it located. It seems the easiest to replace. Car runs great, no blue smoke on start up ...just "no" failure..
thanks for any help