Typical repair cost: $50–$4,500
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ECU pulls power to protect a failing component — scan for the trigger code.
Wrong airflow reading kills fueling and timing.
Restricted exhaust caps RPM and creates extreme heat.
Engine starves under load.
On boosted engines, no boost = no power.
Codes P2122/P2138 — ECM ignores pedal input.
Limp mode is the ECU protecting itself — don't reset and keep driving; you'll only mask the underlying failure.
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