[MA70-3.0GT]

Whoo, cre after reading how this thread's developed I have to agree that EGR is not as widely understood as I thought & anyone who's in doubt would do well to read your posts.

What I was saying about disconnecting the actuator pipe before a failure occurs I stand by though (not that I'm recommending it for the Supra, in fact bearing in mind the 7M's headgasket appetite, I'd say it's a rather bad idea for a regular driver) just as a general "prevention is better than cure" solution on vehicles that can be run without failing emissions, especially diesels on which the EGR more readily fails due to particulate content in the exhaust), in my experience the majority of EGR leaks are caused by a dirty & sticking valve or actuator & not by any mechanical failure.

I suppose I'm just a bit lazy where a daily plodder of a diesel like the pajero's concerned & really the advice should be "if it's broke DO fix it" for any vehicle, but like many I'm guilty of just running something like that as it is, so long as it passes emissions. Incidentally, when I showed the guy that's having the Pajero from me I hooked the EGR back up & it still works! Anyway that's enough rambling from me, back onto supra EGRs...