Check all the vacuum hoses especially the large vacuum hose on the TB itself.

You have to find someone with an egas. I have two non asr egas units here, drive here and try one...

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David Hendy
'97 Renntech E60RS
'97 GMC 2500 Sub' Diesel
'95 E300D
'88 300TE
'88 250TD
'84 L/Rover 109