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• 19:01, 6 July 2026 Cliff talk contribs created page Code 34 (Created page with "'''Code 34''' is a diagnostic trouble code related to the Manifold absolute pressure sensor circuit on the Pontiac Fiero. Code 34 indicates that the ECM has detected a manifold absolute pressure sensor signal that represents unusually high vacuum or low manifold pressure. == Overview == The manifold absolute pressure sensor, often abbreviated as MAP sensor, tells the ECM how much pressure or vacuum is present in the intake mani...")