[Diy_efi] Why TWO cam position sensors

don.broadus at exeloncorp.com don.broadus
Mon Mar 27 14:22:22 UTC 2006

It Looks like it is for variable valve timing. The G1 sensor is the fixed timing and the G2 sensor will show advance or retard of the camshaft when the ECM signals a valve to port oil to the Advance/ Retard system in the timing gear.   

-----Original Message-----
From: diy_efi-bounces at diy-efi.org [mailto:diy_efi-bounces at diy-efi.org]On
Behalf Of Chris Wilson
Sent: Sunday, March 26, 2006 2:11 PM
To: diy_efi at diy-efi.org
Subject: [Diy_efi] Why TWO cam position sensors

  26/03/2006 21:08

Can someone explain why Toyota use a crank position sensor and also TWO
cam position sensors on the Supra 2JZ-GTE engines? A page detailing this
in the factory manual is at:


Is it for better accuracy than just one cam position sensor, i can't
understand why they use 2. Thanks.

       Best Regards,
                   Chris Wilson.
mailto: chris at chriswilson.tv

Diy_efi mailing list
Diy_efi at diy-efi.org

This e-mail and any of its attachments may contain Exelon Corporation
proprietary information, which is privileged, confidential, or subject 
to copyright belonging to the Exelon Corporation family of Companies. 
This e-mail is intended solely for the use of the individual or entity 
to which it is addressed.  If you are not the intended recipient of this 
e-mail, you are hereby notified that any dissemination, distribution, 
copying, or action taken in relation to the contents of and attachments 
to this e-mail is strictly prohibited and may be unlawful.  If you have 
received this e-mail in error, please notify the sender immediately and 
permanently delete the original and any copy of this e-mail and any 
printout. Thank You.

More information about the Diy_efi mailing list