I have a Check light Malfunction that is intermittent
Gives a DTC of 71, EGR on 1994 Toyota Land Cruiser

error shows when gas tank is filled, Erg modulater replaced, Erg pipes cleaned. Help

Asked by for the 1994 Toyota Land Cruiser
1 answer 1 comment
put vac to egr with vac pump and see if it holds a vac to start with and while doing so with car running at idle the car should start to stumble if all ports are clean
Thank You. To clarify,you suggest a Vac Gauge inline between erg and erg mod?. My error light is very intermittent and maybe Vac levels won't tell me much. I appreciate you comments.