Hi,
I just had the starter replaced and also the EGR tube, Valve cover gaskets in my 95 LS.
The next day i see fumes coming from the Engine (Near EGR Tube area), no visible oil leak though, then came the Check Engine light. Did a diagnosis check, it turned out to be "P0401 - Insufficent EGR flow, OK to Drive."
Any body has any clues ? Did the mechanic do something wrong or miss something ?
Thanks.