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Ruff Running 1800ES 1800

posted by  Phil S. on  Sat Apr 5 09:49 CST 2003
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last visit: Fri Oct 24 13:18 CST 2014
[RELATED]

This sounds very much like a vacuum leak to me, and a fairly major one. That's the only thing I know of that can make a D-jet car idle intermittently fast while dying under load, and it also completely throws off the FI computer. If you're sure the hoses are all good (including the ones to the fuel vapor cannister behind the grille???), check the manifold gasket.

Not sure what you mean by having the fuel flow adjusted, but vacuum leaks (a.k.a. false air) can make your injection system run very rich. I'd say the garage tried to tune around the problem rather than fixing what's wrong.

Get some starter fluid and spray around the gasket and anything else you might suspect of leaking -- the engine will speed up when you've found the problem area.






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