Did you know your Scion tC shares its 2.4L 2AZ-FE engine with several Toyota models? Discover what years and models to hunt for before buying your replacement engine.
Category Archives: engine related
Rev up your knowledge with our Engine-Related article section, your ultimate resource for Scion engine performance, maintenance tips, and upgrade inspiration. Whether you’re diagnosing engine issues, boosting horsepower, improving fuel economy, or planning bolt-on mods for your 1st Gen Scion tC we deliver clear, practical content tailored to 2005-2010 Scion tC owners and enthusiasts. Dive into insights on engine components, troubleshooting strategies, and performance enhancements to keep your Scion strong, reliable, and running at peak power.
Thinking about deleting the balance shafts on your 2AZ-FE? Before you crack open that oil pan, see what really happens when you ditch Toyota’s smooth-operator setup.
engine related, intake system
The OEM Stock air box is best for daily driving the Scion tC. Here’s why
Sometimes, the best upgrade is knowing when NOT to upgrade. The stock airbox is going to give you the most reliable daily driving on the Scion tC
After disconnecting the battery you might experience really low RPMs and rough idle. This article explains how to perform the idle relearn process.
custom retrofit, engine related
In-line mini oil catch can separator with clear reservoir install between PCV & Intake manifold
In this article I show you how I installed an inline oil catch can separator with a clear reservoir between my PCV valve and intake manifold, and it works great!
engine related, performance upgrades
Tuning the 2005-2010 Scion tC is challenging because the ECU constantly relearns
The ECU on the 2005-2010 is constantly relearning. This is why it’s so difficult to tune. This article unveals more about the relearning process.
DIY maintenance, engine related
Using Costco Kirkland 5W-30 Fully Synthetic motor oil and OEM Toyota 90915-YZZF1 filter
Costco Kirkland fully synthetic 5W-30 is perfectly fine and good value motor oil for any 2005-2010 Scion tC
In this article I show you how to replace the AC Condenser and check the desiccant drier element
In this article I show you how to troubleshoot a P0171 System Too Lean Bank 1 CEL using a cheap smoke leak tester I bought from Amazon.
This article describes a common oil consumption burning issue with the 2AZ-FE engine and links you to the official Toyota service bulletin
engine related, repair info, replacement part
Spark plug maintenance info OE recommended type, Pre-gapped plugs, and torque values
In this article I talk about spark plug maintenance information including part numbers and recommended gap range