P2428

Exhaust Gas Temperature Too High Bank 1

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Unusual odors from the exhaust system
Exhaust system overheating

Causes

Exhaust gas temperature sensor malfunction
Problems with the catalytic converter
Lean fuel mixture
Ignition system malfunction
Problems with the exhaust gas recirculation (EGR) system

How to Fix

Check the exhaust gas temperature sensor and its circuit
Diagnose the condition of the catalytic converter
Check the fuel system for leaks or malfunctions
Check the ignition system for misfires
Diagnose the EGR system

Related codes

P2429 P2430 P0420