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Yes, there are two sensors--one per bank. I believe it's main purpose is to retard the timing to protect from detonation. But I've heard some modern ecu's will use the sensors to allow the motor to take advantage of higher octane gas as well. Not sure on the Titan, but I know mine does run better on premium, so it would appear that the timing is slightly advanced over using reg unleaded. I'm not sure how else the ecu would know the difference w/o sensing some knock first, but I'm no expert...that I do know!
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'04 Smoke XE CC, 4X4 w/ Preferred Package. Born on 9/16/04
Performance Mods:
aFe Magnum Force Stage II Intake
Flowmaster/Borla XS American Thunder *Hybrid* Exhaust System w/ MF dual tips
Rear Cat Delete--Replaced w/ Dynomax Bullet Resos
Mobile One everywhere except tranny
Airaid TB Spacer
TB Coolant Shut-Off
Active Tuning Grounding Kit
Int/Ext Mods:
SE Pwr Mirror Upgrade
Factory Step Rails
17" OR Wheels
SE Sunvisors Upgrade
20% Window Tint
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