Description
15330-22030 Variable Valve Timing (VVT) Solenoid is a high-quality OEM-grade replacement part compatible with multiple Toyota models. Here’s a detailed technical breakdown:
🔧 Core Specifications
✔ OEM Part Number: 15330-22030 (replaces older 15330-21010)
✔ Electrical Specifications:
12V DC operation
10-15Ω coil resistance
Oil pressure activated (20-100 psi operating range)
✔ Construction:Brass alloy body with nickel-plated connector
High-temp Viton seals (up to 150°C/302°F)
🚗 Precision Fitment Guide
• Toyota Corolla (2003-2008):
1ZZ-FE (1.8L) engines
2ZZ-GE (1.8L high-output) engines
• Toyota Matrix/Pontiac Vibe (2003-2008):
All 1ZZ-FE and 2ZZ-GE variants
Includes XRS models
• Also Fits:
Celica GT (2000-2005) 1ZZ-FE
Lotus Elise (2005-2011) 2ZZ-GE
⚠ Failure Symptoms
▸ Common Warning Signs:
Check Engine Light with P1349/P1656 codes
Rough idle (especially when cold)
Reduced fuel economy (10-15% drop)
Loss of low-end torque
Rattling noise from timing chain cover
▸ Diagnostic Tips:
Test resistance across terminals (should be 10-15Ω)
Check for metal debris in oil passage
Verify proper oil pressure (minimum 25 psi at idle)
🔧 Installation Protocol
Pre-Installation:
Clean oil galley with brake cleaner
Replace O-ring (included with quality units)
Check engine oil level/condition
Installation Steps:
Torque to 89 in-lbs (7.4 N·m)
Apply clean engine oil to new O-ring
Ensure proper connector engagement
Post-Installation:
Clear trouble codes
Perform idle relearn procedure:
Start engine, hold at 2500 RPM for 90 sec
Allow 5 min idle stabilization
📜 Technical Service Bulletins
• T-SB-0093-08: Updated screen design for oil passages
• EG-0036T: Recommends full oil change when replacing solenoid
⚠ Critical Notes
✖ Not Compatible With:
2009+ Corolla (uses 15330-0H010)
1NZ-FE engines
Vehicles with VVT-iW systems
For proper diagnosis:
Check oil level/quality (dirty oil causes 60% of failures)
Verify cam timing with scan tool
Inspect wiring harness for damage
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