A common code on VVT-i equipped 1SZ-FE engines is .
90–95 N⋅m (66–70 lbf⋅ft) at 4,000–4,100 rpm
The engine uses roller-type cam-follower arms (finger followers) with narrow-angle valves (18.6°) to minimize friction and improve combustion speed. 1szfe engine manual top
One day, Tom decided to take the Yaris on a road trip to the mountains. He packed up his bags, filled up the gas tank, and hit the highway. The 1SZ-FE engine hummed along, its turbocharger kicking in as Tom climbed the steep hills.
The exhaust camshaft gear features a corresponding alignment mark that aligns with the second bright/colored link. A common code on VVT-i equipped 1SZ-FE engines is
The Toyota 1SZ-FE is a compact, highly efficient 1.0-liter inline-four engine introduced in 1999 for compact cars like the Toyota Vitz, Yaris, and Platz. Developed in collaboration with Daihatsu, this powerhouse features a Dual Overhead Cam (DOHC) design and Toyota’s proprietary VVT-i (Variable Valve Timing with intelligence) technology. For mechanics, DIY restorers, and car enthusiasts, mastering the "top end" of this engine—the cylinder head, valvetrain, camshafts, and timing chain—is critical for maintaining its signature reliability and fuel economy.
: Unlike engines with belts that require frequent changes, the 1SZ-FE uses a durable chain. He packed up his bags, filled up the
Official and community-supported workshop manuals provide critical data for maintaining this engine:
Ensure the keyway on the crankshaft snout points straight up (12 o'clock position). Step 2: Align the Camshafts