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Registered
Join Date: May 2001
Location: Central Coast
Posts: 281
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pulse/duty factor: How to measure
I'd like to measure the pulse/duty cycle on my 911 Turbo. Does anyone know where to tap in to take the reading??
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03-11-2002, 11:06 AM
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Registered
Join Date: May 2001
Location: Central Coast
Posts: 281
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bump....anybody, anybody???
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03-11-2002, 02:57 PM
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Registered
Join Date: Aug 2001
Location: Brighton UK since 11/2012
Posts: 3,170
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The easiest way is to use the Bosch Hammer, it has a special function for CO adjustment on 964 Turbos.
Failing that you need to tie into the output wire of the O2 sensor. If you measure in Mv, it should sweep from low to high in a 0.5v range when up to normal temperature.
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From November 2012; Precision Porsche Specialist Sussex UK, +44 (0)1825-721-205 2001-2012 Gerber Motorsport Inc. 206-352-6911 07.15.06 1996 Ducati 900SP. Suprisingly enough, it's red 08.16.09 1999 Kawasaki ZRX1100. Green. |
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03-11-2002, 03:02 PM
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Senior Member
Join Date: Feb 2000
Location: Lacey, WA. USA
Posts: 25,308
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On my car, there is a round test plug with a rubber cap. Take the cap off and see three conductors in a triangle. The brown is ground and the green will give you the Oxygen Sensor Duty Cycle. This round plug is between the engine compartment fuse box and the fuel accumulator, just dangling there.
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Man of Carbon Fiber (stronger than steel) Mocha 1978 911SC. "Coco" |
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03-11-2002, 04:07 PM
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