Check Engine Light With Loss of Power: Top Causes
Key Takeaway
Losing power with the check engine light on? Here are the most common causes.
Top Causes of Power Loss + CEL
| Cause | Code(s) | Repair Cost |
|---|---|---|
| Clogged catalytic converter | P0420, P0430 | $1,000 – $2,500 |
| Turbo underboost | P0299 | $500 – $2,000 |
| Throttle body / ETC | P0121, P2135 | $200 – $600 |
| Mass airflow sensor | P0101 | $100 – $400 |
| Fuel pump weak | P0087, P0230 | $400 – $800 |
| Ignition coil failure | P0351–P0358 | $150 – $300 |
| Multiple misfires | P0300 | $100 – $500 |
ProHow Steer Helps
Steer pinpoints the exact cause of power loss from the DTC and tells you whether to drive to a shop or get a tow.
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