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You need to check the resistance between each of the 6 pins in the sensor plug to the corresponding pins on plug IV of the DME. What year is your car?
The system works by comparing pot 1 to pot 2. One runs at 1/2 the voltage of the other. Any compromise in the wiring and connections between the sensor and DME can throw off the ratio and cause the limp mode.
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1998 Boxster with 7.8 DME, 2005 3.6 liter/325 hp, Variocam Plus, 996 Instrument panel
2001 Boxster original owner. I installed used motor at 89k.
1987 924S. 2002 996TT. PST-2
Owned and repaired Porsches since 1974. Porsche: It's not driving, it's therapy.
Last edited by Paul; 11-08-2020 at 06:45 PM.
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