|
i have a 1997 jeep grand cherokee that has what looks like a egr delete but i'm not sure the manual says that it's supposed to have one but there's no hole in the exhaust manifold(i think the owner before me got a header upgrade that had no egr port so he got a delete but not sure???) and i'm getting the same fuel economy as listed on the epa website stock???? any ideas???(and i'm not getting any ecu trouble codes so i think it's supposed to be vacuum operated)
|