fuel system problems
#11
RE: fuel system problems
Actually, there is no such thing as a "protection mode", it has a minimal "limp in" mode with some preset sensor readings that are not very flexible. It is meant to get you home or to a service facility to get repairs. What you are feeling is lack of engine vacuum to pull in raw fuel, since the exhaust has no where to go and does not burn "again". I think you are on the right track, but, something usually cause a converter to go bad. It doesn't happen on it's on. To rich a fuel mixture for extended periods usuall the culprit. Raw fuel burns in the converter and superheats, causing a catalyst meltdown. I have also seen bad diverter valves cause meltdowns. If your car has a smog pump, undo air hoses off emission tubes that go to manifolds and run car. If you have air coming out while idleing, the valve is bad. Good Luck! [8D]
#14
RE: fuel system problems
I guess I didn't state it correctly, with all the salt on the roads up here, under carriage rust is excelerated, I already have the converter on the way, with a big whole in the one on the car, it won't hurt to go ahead and replace it.
#16
RE: fuel system problems
mech 259, looks like Ill have to starting buying test gear for my vette, I guess I'll store it out in my shop in the garage, next to all of my tv test equipment, and to answer your question, no I don't have a pressure gauge, I'll have to stop by pep boys and pick one up.
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