How to Check the Spool Valve and Variable Timing Sprocket on a Toyota Corolla?

WT system is used on all models adjusting the intake camshaft timing by routing oil pressure to the intake camshaft sprocket/actuator assembly; it improves engine power, fuel efficiency, and emissions in certain circumstances. Some of these are; PCM which is the Powertrain Control Module, WT oil control valve also known as OCV, OCV filter of the oil control valve, and the intake camshaft sprocket actuator assembly. The PCM triggers the oil control valve that manages the flow of oil pressure serving to either protract or precede the camshaft. As it can be seen, the actuator assembly includes an inner hub that has fixed vanes which, when contracted by oil pressure, rotates the camshaft: altering the degree of inclination up to 21. In this case, the camshaft timing is adjusted depending on the current engine loads in order to enhance the efficiency and power. Maintenance must be frequent since problems stem from the oil control valve and the filter, to determine blockage and the extent of control. Also, one should check the functionality of the oil control valve plunger, which must move when voltage is supplied. Any comprehensive examination requires the removal of the valve cover and intake camshaft; in this case, the actuator assembly should turn freely using air pressure. If any of the components do not function as planned, then replacements are made and the reassembly is as follows: the reverse approach to disassembly.

Genuine Toyota Corolla Spool Valve

VTEC Solenoid

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11 Spool Valves found

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Toyota Corolla Camshaft Timing Oil Control Valve Asssmbly
Part Number: 15330-0T010
$108.43 MSRP: $152.85
You Save: $44.42 (30%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve Assy, Camshaft Timing Oil Control; Control Valve, Control Valve Solenoid
- Replaces: 15330-37010
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2009-2024 Toyota Corolla | CE, ECO, ECOSW, LE, S, STD, XRS | 4 Cyl 1.8L, 4 Cyl 2.0L, 4 Cyl 2.4L | 2AZFE, 2ZRFAE, 2ZRFE, 2ZRFXE, AZE141L-DEASKK, AZE141L-DEMSKA, AZE141L-DEMSKK, M20AFKS; AZE141L-DEASKA, MZEA12L-AEFSBA, MZEA12L-AEXSBA, MZEA12L-AEXYBA, MZEA12L-DEFSBA, MZEA12L-DEFSBK, MZEA12L-DEXSBA, MZEA12L-DEXSBK, MZEA12L-DEXYBA, MZEA12L-DEXYBK, MZEA18L-AEXDBA, MZEA18L-AEXLBA, MZEA18L-DEXDBA, MZEA18L-DEXDBK, MZEA18L-DEXLBA, MZEA18L-DEXLBK, ZRE142L-AEPDKA, ZRE142L-AEPNKA, ZRE142L-DEMDKA, ZRE142L-DEMDKK, ZRE142L-DEMSKA, ZRE142L-DEMSKK, ZRE142L-DEPDKA, ZRE142L-DEPDKK, ZRE142L-DEPNKA, ZRE142L-DEPNKK, ZRE142L-DEPSKA, ZRE142L-DEPSKK, ZRE172L-DEFDKA, ZRE172L-DEFDKK, ZRE172L-DEFSKA, ZRE172L-DEFSKK, ZRE172L-DEPDKA, ZRE172L-DEPDKK, ZRE172L-DEXDKA, ZRE172L-DEXDKK, ZRE172L-DEXNKA, ZRE172L-DEXNKK, ZRE172L-DEXPPA, ZRE172L-DEXPPK, ZRE172L-DEXQPA, ZRE172L-DEXQPK, ZRE172L-DEXSKA, ZRE172L-DEXSKK, ZRE212L-AEFDPA, ZRE212L-AEXDPA, ZRE212L-AEXLPA, ZRE212L-AEXXPA, ZRE212L-DEFDPA, ZRE212L-DEFDPK, ZRE212L-DEXDPA, ZRE212L-DEXDPK, ZRE212L-DEXLPA, ZRE212L-DEXLPK, ZRE212L-DEXXPA, ZRE212L-DEXXPK, ZWE211L-AEXLBA, ZWE211L-AEXLBK, ZWE213L-AEXLBA, ZWE213L-AEXLBK, ZWE215L-AEXLBA, ZWE215L-AEXLBK, ZWE215L-AEXSBA, ZWE215L-AEXSBK, ZWE215L-AEXYBK, ZWE219L-AEXLBA, ZWE219L-AEXLBK, ZWE219L-AEXSBA, ZWE219L-AEXXBA
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Toyota Corolla Camshaft Timing Oil Control Valve Asssmbly
Part Number: 15330-22030
$118.04 MSRP: $167.82
You Save: $49.78 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Valve Assy, Camshaft Timing Oil Control
- Replaced by: 15330-22050
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2001-2008 Toyota Corolla | CE, LE, S, STD, VE, XR, XRS | 4 Cyl 1.8L | 1ZZFE, 2ZZGE; ZZE110L-DEHRKA, ZZE110L-DEMDKA, ZZE110L-DEMDKK, ZZE110L-DEMNKA, ZZE110L-DEMRKA, ZZE110L-DEMRKK, ZZE110L-DEMSKA, ZZE110L-DEMSKK, ZZE110L-DEPDKA, ZZE110L-DEPDKK, ZZE110L-DEPEKA, ZZE110L-DEPGKA, ZZE110L-DEPNKA, ZZE110L-DEPNKK, ZZE110L-DEPQKA, ZZE110L-DEPRKA, ZZE110L-DEPRKK, ZZE110L-DEPSKA, ZZE110L-DEPSKK, ZZE110L-DEPXKA, ZZE130L-AEMDKA, ZZE130L-AEMNKA, ZZE130L-AEPDKA, ZZE130L-AEPDKK, ZZE130L-AEPNKA, ZZE130L-AEPNKK, ZZE130L-DEMDKA, ZZE130L-DEMDKK, ZZE130L-DEMNKA, ZZE130L-DEMNKK, ZZE130L-DEMSKA, ZZE130L-DEMSKK, ZZE130L-DEPDKA, ZZE130L-DEPDKK, ZZE130L-DEPNKA, ZZE130L-DEPNKK, ZZE130L-DEPSKA, ZZE130L-DEPSKK, ZZE131L-DEFSFA, ZZE131L-DEFSFK, ZZE132L-DHMDKA, ZZE132L-DHMDKK, ZZE132L-DHMNKA, ZZE132L-DHMNKK, ZZE132L-DHPDKA, ZZE132L-DHPDKK, ZZE132L-DHPNKA, ZZE132L-DHPNKK, ZZE133L-DHFSFA, ZZE133L-DHFSFK, ZZE133L-DHPSFA, ZZE133L-DHPSFK, ZZE134L-DHPDKA, ZZE134L-DHPDKK, ZZE134L-DHPNKA, ZZE134L-DHPNKK
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Toyota Corolla Camshaft Timing Oil Control Valve Asssmbly
Part Number: 15330-28020
$95.69 MSRP: $134.88
You Save: $39.19 (30%)
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Product Specifications
- Other Name: Valve Assy, Camshaft Timing Oil Control
- Replaced by: 15330-28010
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2009-2013 Toyota Corolla | CE, LE, S, STD, XRS | 4 Cyl 1.8L, 4 Cyl 2.4L | 2AZFE, 2ZRFE; AZE141L-DEASKA, AZE141L-DEASKK, AZE141L-DEMSKA, AZE141L-DEMSKK, ZRE142L-DEMDKA, ZRE142L-DEMDKK, ZRE142L-DEMSKA, ZRE142L-DEMSKK, ZRE142L-DEPDKA, ZRE142L-DEPDKK, ZRE142L-DEPNKA, ZRE142L-DEPNKK, ZRE142L-DEPSKA, ZRE142L-DEPSKK
View related parts
Toyota Corolla Camshaft Timing Oil Control Valve Asssmbly
Part Number: 15330-37010
$108.43 MSRP: $152.85
You Save: $44.42 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Valve Assy, Camshaft Timing Oil Control
- Replaced by: 15330-0T010
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2009-2024 Toyota Corolla | CE, ECO, ECOSW, LE, S, STD, XRS | 4 Cyl 1.8L, 4 Cyl 2.0L, 4 Cyl 2.4L | 2AZFE, 2ZRFAE, 2ZRFE, 2ZRFXE, M20AFKS; AZE141L-DEASKA, AZE141L-DEASKK, AZE141L-DEMSKA, AZE141L-DEMSKK, MZEA12L-AEFSBA, MZEA12L-AEXSBA, MZEA12L-AEXYBA, MZEA12L-DEFSBA, MZEA12L-DEFSBK, MZEA12L-DEXSBA, MZEA12L-DEXSBK, MZEA12L-DEXYBA, MZEA12L-DEXYBK, MZEA18L-AEXDBA, MZEA18L-AEXLBA, MZEA18L-DEXDBA, MZEA18L-DEXDBK, MZEA18L-DEXLBA, MZEA18L-DEXLBK, ZRE142L-AEPDKA, ZRE142L-AEPNKA, ZRE142L-DEMDKA, ZRE142L-DEMDKK, ZRE142L-DEMSKA, ZRE142L-DEMSKK, ZRE142L-DEPDKA, ZRE142L-DEPDKK, ZRE142L-DEPNKA, ZRE142L-DEPNKK, ZRE142L-DEPSKA, ZRE142L-DEPSKK, ZRE172L-DEFDKA, ZRE172L-DEFDKK, ZRE172L-DEFSKA, ZRE172L-DEFSKK, ZRE172L-DEPDKA, ZRE172L-DEPDKK, ZRE172L-DEXDKA, ZRE172L-DEXDKK, ZRE172L-DEXNKA, ZRE172L-DEXNKK, ZRE172L-DEXPPA, ZRE172L-DEXPPK, ZRE172L-DEXQPA, ZRE172L-DEXQPK, ZRE172L-DEXSKA, ZRE172L-DEXSKK, ZRE212L-AEFDPA, ZRE212L-AEXDPA, ZRE212L-AEXLPA, ZRE212L-AEXXPA, ZRE212L-DEFDPA, ZRE212L-DEFDPK, ZRE212L-DEXDPA, ZRE212L-DEXDPK, ZRE212L-DEXLPA, ZRE212L-DEXLPK, ZRE212L-DEXXPA, ZRE212L-DEXXPK, ZWE211L-AEXLBA, ZWE211L-AEXLBK, ZWE213L-AEXLBA, ZWE213L-AEXLBK, ZWE215L-AEXLBA, ZWE215L-AEXLBK, ZWE215L-AEXSBA, ZWE215L-AEXSBK, ZWE215L-AEXYBK, ZWE219L-AEXLBA, ZWE219L-AEXLBK, ZWE219L-AEXSBA, ZWE219L-AEXXBA
View related parts
Toyota Corolla Camshaft Timing Oil Control Valve Asssmbly
Part Number: 15330-0T020
$108.43 MSRP: $152.85
You Save: $44.42 (30%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Valve Assy, Camshaft Timing Oil Control; Control Valve
- Manufacturer Note: (L),NO.2
- Replaces: 15330-37020
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2009-2024 Toyota Corolla | CE, ECO, ECOSW, LE, S, STD, XRS | 4 Cyl 1.8L, 4 Cyl 2.0L, 4 Cyl 2.4L | 2AZFE, 2ZRFAE, 2ZRFE, 2ZRFXE, AZE141L-DEASKK, AZE141L-DEMSKA, AZE141L-DEMSKK, M20AFKS; AZE141L-DEASKA, MZEA12L-AEFSBA, MZEA12L-AEXSBA, MZEA12L-AEXYBA, MZEA12L-DEFSBA, MZEA12L-DEFSBK, MZEA12L-DEXSBA, MZEA12L-DEXSBK, MZEA12L-DEXYBA, MZEA12L-DEXYBK, MZEA18L-AEXDBA, MZEA18L-AEXLBA, MZEA18L-DEXDBA, MZEA18L-DEXDBK, MZEA18L-DEXLBA, MZEA18L-DEXLBK, ZRE142L-AEPDKA, ZRE142L-AEPNKA, ZRE142L-DEMDKA, ZRE142L-DEMDKK, ZRE142L-DEMSKA, ZRE142L-DEMSKK, ZRE142L-DEPDKA, ZRE142L-DEPDKK, ZRE142L-DEPNKA, ZRE142L-DEPNKK, ZRE142L-DEPSKA, ZRE142L-DEPSKK, ZRE172L-DEFDKA, ZRE172L-DEFDKK, ZRE172L-DEFSKA, ZRE172L-DEFSKK, ZRE172L-DEPDKA, ZRE172L-DEPDKK, ZRE172L-DEXDKA, ZRE172L-DEXDKK, ZRE172L-DEXNKA, ZRE172L-DEXNKK, ZRE172L-DEXPPA, ZRE172L-DEXPPK, ZRE172L-DEXQPA, ZRE172L-DEXQPK, ZRE172L-DEXSKA, ZRE172L-DEXSKK, ZRE212L-AEFDPA, ZRE212L-AEXDPA, ZRE212L-AEXLPA, ZRE212L-AEXXPA, ZRE212L-DEFDPA, ZRE212L-DEFDPK, ZRE212L-DEXDPA, ZRE212L-DEXDPK, ZRE212L-DEXLPA, ZRE212L-DEXLPK, ZRE212L-DEXXPA, ZRE212L-DEXXPK, ZWE211L-AEXLBA, ZWE211L-AEXLBK, ZWE213L-AEXLBA, ZWE213L-AEXLBK, ZWE215L-AEXLBA, ZWE215L-AEXLBK, ZWE215L-AEXSBA, ZWE215L-AEXSBK, ZWE215L-AEXYBK, ZWE219L-AEXLBA, ZWE219L-AEXLBK, ZWE219L-AEXSBA, ZWE219L-AEXXBA
View related parts
Toyota Corolla Camshaft Timing Oil Control Valve Asssmbly
Part Number: 15330-37020
$108.43 MSRP: $152.85
You Save: $44.42 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Valve Assy, Camshaft Timing Oil Control
- Replaced by: 15330-0T020
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2009-2024 Toyota Corolla | CE, ECO, ECOSW, LE, S, STD, XRS | 4 Cyl 1.8L, 4 Cyl 2.0L, 4 Cyl 2.4L | 2AZFE, 2ZRFAE, 2ZRFE, 2ZRFXE, M20AFKS; AZE141L-DEASKA, AZE141L-DEASKK, AZE141L-DEMSKA, AZE141L-DEMSKK, MZEA12L-AEFSBA, MZEA12L-AEXSBA, MZEA12L-AEXYBA, MZEA12L-DEFSBA, MZEA12L-DEFSBK, MZEA12L-DEXSBA, MZEA12L-DEXSBK, MZEA12L-DEXYBA, MZEA12L-DEXYBK, MZEA18L-AEXDBA, MZEA18L-AEXLBA, MZEA18L-DEXDBA, MZEA18L-DEXDBK, MZEA18L-DEXLBA, MZEA18L-DEXLBK, ZRE142L-AEPDKA, ZRE142L-AEPNKA, ZRE142L-DEMDKA, ZRE142L-DEMDKK, ZRE142L-DEMSKA, ZRE142L-DEMSKK, ZRE142L-DEPDKA, ZRE142L-DEPDKK, ZRE142L-DEPNKA, ZRE142L-DEPNKK, ZRE142L-DEPSKA, ZRE142L-DEPSKK, ZRE172L-DEFDKA, ZRE172L-DEFDKK, ZRE172L-DEFSKA, ZRE172L-DEFSKK, ZRE172L-DEPDKA, ZRE172L-DEPDKK, ZRE172L-DEXDKA, ZRE172L-DEXDKK, ZRE172L-DEXNKA, ZRE172L-DEXNKK, ZRE172L-DEXPPA, ZRE172L-DEXPPK, ZRE172L-DEXQPA, ZRE172L-DEXQPK, ZRE172L-DEXSKA, ZRE172L-DEXSKK, ZRE212L-AEFDPA, ZRE212L-AEXDPA, ZRE212L-AEXLPA, ZRE212L-AEXXPA, ZRE212L-DEFDPA, ZRE212L-DEFDPK, ZRE212L-DEXDPA, ZRE212L-DEXDPK, ZRE212L-DEXLPA, ZRE212L-DEXLPK, ZRE212L-DEXXPA, ZRE212L-DEXXPK, ZWE211L-AEXLBA, ZWE211L-AEXLBK, ZWE213L-AEXLBA, ZWE213L-AEXLBK, ZWE215L-AEXLBA, ZWE215L-AEXLBK, ZWE215L-AEXSBA, ZWE215L-AEXSBK, ZWE215L-AEXYBK, ZWE219L-AEXLBA, ZWE219L-AEXLBK, ZWE219L-AEXSBA, ZWE219L-AEXXBA
View related parts
Toyota Corolla Camshaft Timing Oil Control Valve Asssmbly
Part Number: 15330-22040
$133.84 MSRP: $190.27
You Save: $56.43 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Valve Assy, Camshaft Timing Oil Control
- Replaced by: 15330-22060
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2003-2007 Toyota Corolla | CE, LE, S, STD, XR, XRS | 4 Cyl 1.8L | 1ZZFE, 2ZZGE; ZZE130L-DEMDKA, ZZE130L-DEMDKK, ZZE130L-DEMNKA, ZZE130L-DEMNKK, ZZE130L-DEMSKA, ZZE130L-DEMSKK, ZZE130L-DEPDKA, ZZE130L-DEPDKK, ZZE130L-DEPNKA, ZZE130L-DEPNKK, ZZE130L-DEPSKA, ZZE130L-DEPSKK, ZZE131L-DEFSFA, ZZE131L-DEFSFK, ZZE132L-DHMDKA, ZZE132L-DHMDKK, ZZE132L-DHMNKA, ZZE132L-DHMNKK, ZZE132L-DHPDKA, ZZE132L-DHPDKK, ZZE132L-DHPNKA, ZZE132L-DHPNKK, ZZE133L-DHFSFA, ZZE133L-DHFSFK, ZZE133L-DHPSFA, ZZE133L-DHPSFK, ZZE134L-DHPDKA, ZZE134L-DHPDKK, ZZE134L-DHPNKA, ZZE134L-DHPNKK
View related parts
Toyota Corolla Camshaft Timing Oil Control Valve Asssmbly
Part Number: 15330-22010
$118.04 MSRP: $167.82
You Save: $49.78 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Valve Assy, Camshaft Timing Oil Control
- Replaced by: 15330-22050
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1999-2002 Toyota Corolla | CE, LE, S, VE | 4 Cyl 1.8L | 1ZZFE; ZZE110L-DEHRKA, ZZE110L-DEHRKK, ZZE110L-DEMDKA, ZZE110L-DEMDKK, ZZE110L-DEMNKA, ZZE110L-DEMRKA, ZZE110L-DEMRKK, ZZE110L-DEMSKA, ZZE110L-DEMSKK, ZZE110L-DEPDKA, ZZE110L-DEPDKK, ZZE110L-DEPEKA, ZZE110L-DEPGKA, ZZE110L-DEPNKA, ZZE110L-DEPNKK, ZZE110L-DEPQKA, ZZE110L-DEPRKA, ZZE110L-DEPRKK, ZZE110L-DEPSKA, ZZE110L-DEPSKK, ZZE110L-DEPXKA
View related parts
Toyota Corolla Camshaft Timing Oil Control Valve Asssmbly
Part Number: 15330-22020
$133.84 MSRP: $190.27
You Save: $56.43 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Valve Assy, Camshaft Timing Oil Control
- Replaced by: 15330-22060
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2003 Toyota Corolla | CE, LE, S, STD, XR, XRS | 4 Cyl 1.8L | 1ZZFE, 2ZZGE; ZZE130L-DEMDKA, ZZE130L-DEMDKK, ZZE130L-DEMNKA, ZZE130L-DEMNKK, ZZE130L-DEMSKA, ZZE130L-DEMSKK, ZZE130L-DEPDKA, ZZE130L-DEPDKK, ZZE130L-DEPNKA, ZZE130L-DEPNKK, ZZE130L-DEPSKA, ZZE130L-DEPSKK, ZZE132L-DHMDKA, ZZE132L-DHMDKK, ZZE132L-DHMNKA, ZZE132L-DHMNKK, ZZE132L-DHPDKA, ZZE132L-DHPDKK, ZZE132L-DHPNKA, ZZE132L-DHPNKK, ZZE133L-DHFSFA, ZZE133L-DHFSFK, ZZE133L-DHPSFA, ZZE133L-DHPSFK, ZZE134L-DHPDKA, ZZE134L-DHPDKK, ZZE134L-DHPNKA, ZZE134L-DHPNKK
View related parts
Toyota Corolla Engine Variable Valve Timing Solenoid
Part Number: 15370-25020
$92.85 MSRP: $130.89
You Save: $38.04 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SOLENOID Assembly, Cam T
- Replaced by: 15370-F0020
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2019-2024 Toyota Corolla | 4 Cyl 1.8L, 4 Cyl 2.0L | 2ZRFAE, 2ZRFXE, M20AFKS; MZEA12L-AEFSBA, MZEA12L-AEXSBA, MZEA12L-AEXYBA, MZEA12L-AHFNBA, MZEA12L-AHFNBK, MZEA12L-AHXNBA, MZEA12L-AHXNBK, MZEA12L-DEFSBA, MZEA12L-DEFSBK, MZEA12L-DEXSBA, MZEA12L-DEXSBK, MZEA12L-DEXYBA, MZEA12L-DEXYBK, MZEA18L-AEXDBA, MZEA18L-AEXLBA, MZEA18L-DEXDBA, MZEA18L-DEXDBK, MZEA18L-DEXLBA, MZEA18L-DEXLBK, ZRE212L-AEFDPA, ZRE212L-AEXDPA, ZRE212L-AEXLPA, ZRE212L-AEXXPA, ZRE212L-DEFDPA, ZRE212L-DEFDPK, ZRE212L-DEXDPA, ZRE212L-DEXDPK, ZRE212L-DEXLPA, ZRE212L-DEXLPK, ZRE212L-DEXXPA, ZRE212L-DEXXPK, ZWE211L-AEXLBA, ZWE211L-AEXLBK, ZWE213L-AEXLBA, ZWE213L-AEXLBK, ZWE215L-AEXLBA, ZWE215L-AEXLBK, ZWE215L-AEXSBA, ZWE215L-AEXSBK, ZWE215L-AEXYBK, ZWE219L-AEXLBA, ZWE219L-AEXLBK, ZWE219L-AEXSBA, ZWE219L-AEXXBA
View related parts
Toyota Corolla Engine Variable Valve Timing Solenoid
Part Number: 15370-F0020
$92.85 MSRP: $130.89
You Save: $38.04 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SOLENOID Assembly, Cam T; Control Valve Solenoid, Solenoid, Solenoid Valve
- Replaces: 15370-25020
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2019-2024 Toyota Corolla | 4 Cyl 1.8L, 4 Cyl 2.0L | 2ZRFAE, 2ZRFXE, M20AFKS; MZEA12L-AEFSBA, M20AFKS; MZEA12L-DEFSBA, MZEA12L-AEXSBA, MZEA12L-AEXYBA, MZEA12L-AHFNBA, MZEA12L-AHFNBK, MZEA12L-AHXNBA, MZEA12L-AHXNBK, MZEA12L-DEFSBA, MZEA12L-DEFSBK, MZEA12L-DEXSBA, MZEA12L-DEXSBK, MZEA12L-DEXYBA, MZEA12L-DEXYBK, MZEA18L-AEXDBA, MZEA18L-AEXLBA, MZEA18L-DEXDBA, MZEA18L-DEXDBK, MZEA18L-DEXLBA, MZEA18L-DEXLBK, ZRE212L-AEFDPA, ZRE212L-AEXDPA, ZRE212L-AEXLPA, ZRE212L-AEXXPA, ZRE212L-DEFDPA, ZRE212L-DEFDPK, ZRE212L-DEXDPA, ZRE212L-DEXDPK, ZRE212L-DEXLPA, ZRE212L-DEXLPK, ZRE212L-DEXXPA, ZRE212L-DEXXPK, ZWE211L-AEXLBA, ZWE211L-AEXLBK, ZWE213L-AEXLBA, ZWE213L-AEXLBK, ZWE215L-AEXLBA, ZWE215L-AEXLBK, ZWE215L-AEXSBA, ZWE215L-AEXSBK, ZWE215L-AEXYBK, ZWE219L-AEXLBA, ZWE219L-AEXLBK, ZWE219L-AEXSBA, ZWE219L-AEXXBA

Toyota Corolla Spool Valve

Toyota Corolla Spool Valve is an ECU-controlled device that adjusts the timing of the valve lift event in the engine and acts to optimize the fuel consumption with the responsive delivery of power. The Spool Valve inside the housing changes paths of oil flow according to commands of the engine computer, either forwards or backwards the cam timing, so that the intake valves open or close at the opportune time in the current operating conditions. The unit helps in making the acceleration smooth, and it provides greater torque where necessary but less fuel consumption where the load is less through fine-tuning of the valve action. It is suggested that a set of corresponding timing chain, gears, sprockets, guides, and tensioners in set form be installed whenever corresponding parts are replaced so that the Spool Valve is able to operate in a stable and accurate cam drive environment. Even though optional gear or belt drive conversions may allow further timing stabilization by removing the effects of chain stretch, the Toyota Corolla system is compatible with well-aligned stock components, and the Spool Valve can keep good and consistent timing control of the valve timing. Frequent oil passage and clean passages aid the Toyota Corolla Spool Valve in responding swiftly to ECU signals. Correct part selection maintains Toyota Corolla cam timing within manufacturing limits.

If you are in demand for superior quality and affordable OEM Toyota Corolla Spool Valve, then shop with us! We own a wide range of the reduced-priced genuine Toyota Corolla Spool Valve. You can purchase in confidence as all parts come with a manufacturer's warranty. Any issues with our products? No need to worry as we have a hassle-free return policy to guide you every step of the way.

Toyota Corolla Spool Valve Parts Questions & Experts Answers

Camshaft Timing Oil Control Valve Asssmbly
15330-22030
Q: How to Check the Spool Valve and Variable Timing Sprocket on a Toyota Corolla?
A:
WT system is used on all models adjusting the intake Camshaft timing by routing oil pressure to the intake camshaft sprocket/actuator assembly; it improves engine power, fuel efficiency, and emissions in certain circumstances. Some of these are; PCM which is the Powertrain Control Module, WT oil control valve also known as OCV, OCV filter of the oil control valve, and the intake camshaft sprocket actuator assembly. The PCM triggers the oil control valve that manages the flow of oil pressure serving to either protract or precede the camshaft. As it can be seen, the actuator assembly includes an inner hub that has fixed vanes which, when contracted by oil pressure, rotates the camshaft: altering the degree of inclination up to 21. In this case, the camshaft timing is adjusted depending on the current engine loads in order to enhance the efficiency and power. Maintenance must be frequent since problems stem from the oil control valve and the filter, to determine blockage and the extent of control. Also, one should check the functionality of the oil control valve plunger, which must move when voltage is supplied. Any comprehensive examination requires the removal of the valve cover and intake camshaft; in this case, the actuator assembly should turn freely using air pressure. If any of the components do not function as planned, then replacements are made and the reassembly is as follows: the reverse approach to disassembly.