Questions on code 71 (EGR system failure)

[guydlow]

Hello My engine and trac off lights have been on for several months (code 71 came up) and I have not noticed any problems until the other day. I started the car (95 sc300) and it seemed to hesitate, and then ran normal for a couple miles until the check engine light started to flash and the car died. I'm wondering if just an EGR issue would cause the engine to shut off, or if anyone thinks it's possibly a timing issue (maybe starting the car caused enough of a rattle to mess up the old belt?) but like I said, it started kinda rough, ran fine for a couple of miles, and the CEL light flashed and it died. I'm wondering if it's more likely a timing issue, egr issue, or perhaps both? Could a timing issue show up as code 71?  Thank you!

[Lexus Owners Club]

This is the explanation for Code 71

EGR system circuit fault (for ES300; GS300 & SC300 models)

You could try tapping the EGR valve with a screwdriver handle and see if you can then start the engine.....sometimes dislodges the blockage