Wouldn't pass smopg test high nox high HC. Engine light indicates code 71 EGR so I took off EGR and there seemed to be no vacume. I reved up engine and started to feel more air from chamber but then it started loping. Replaced EGR valve and it started working when throttel up but still lopes. Seems like vacume leak. Lopes the same as not having PVC hooked up. Pulloed off hose from PVC and put finger over hole and it stops loping. Replace PVC but5 still lopes. No loose vac hoses that I can see.
have the same problem?
Wednesday, March 2nd, 2011 AT 6:04 PM