P26A8 on 2012-2017 Toyota Prius V — Charge Air Cooler Performance
1 vehicles · 1 makes · $250-$800 repair
Most Reported On
P26A8 is an OBD-II diagnostic trouble code meaning “Charge Air Cooler Performance.” This code (often written P026A) indicates the charge air cooler, also called the intercooler, is not cooling the boosted intake air as efficiently as the computer expects. On turbocharged or supercharged engines the charge air cooler chills the hot, compressed air before it enters the engine, and the computer compares ambient, pre-cooler, and post-cooler air temperatures to judge its performance. When the calculated efficiency stays below threshold, this code sets. It usually means reduced power or efficiency rather than an immediate breakdown. This code is most commonly reported on 2012-2017 Toyota Prius V, with repair costs ranging from $250 to $800.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P26A8, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
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- I/M readiness status
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BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
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- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
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- AutoVIN for vehicle identification
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Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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FAQ
What does P26A8 mean?
P26A8 stands for "Charge Air Cooler Performance." This code (often written P026A) indicates the charge air cooler, also called the intercooler, is not cooling the boosted intake air as efficiently as the computer expects. On turbocharged or supercharged engines the charge air cooler chills the hot, compressed air before it enters the engine, and the computer compares ambient, pre-cooler, and post-cooler air temperatures to judge its performance. When the calculated efficiency stays below threshold, this code sets. It usually means reduced power or efficiency rather than an immediate breakdown.
What are the most common causes of P26A8?
The most common causes of P26A8 are: Clogged, leaking, or damaged charge air cooler (intercooler), Leaking or loose intercooler/boost piping or couplers, Faulty charge air temperature sensor or wiring, Restricted airflow across the cooler (debris, oil fouling), Low coolant or failed pump on liquid-cooled intercoolers, Boost leak reducing pressure through the cooler, Heavy oil residue inside the cooler from blow-by. The specific cause varies by vehicle.
How much does it cost to fix P26A8?
Repair costs for P26A8 range from $250 to $800, depending on the vehicle and root cause.
Which vehicles are affected by P26A8?
Au7o has documented P26A8 across 1 vehicle models from 1 manufacturers: Toyota.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.