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Jumpy idle and emission test 700 1988

Good luck w/ the smog test. Make sure the timing is correct. May need a new O2 or engine temp sensor. Check all the intake manifold vacuumn line fittings some tend to get plugged over time. If the oil vapor seperator hasn't ever been clean out you may have to remove it and clean it too. It's on the side of the engine under the intake manifold towards the back. No gasket involved but there is a large o-ring seal that gets hard and probably needs replacement.






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