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- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1978-1989 3.3L Turbo (930)
Basic version
(Bosch Ref 0227300004)
New Perma-Tune Gen 6 Unit
Disclaimer: Before fitting this CDI unit please make sure the new coil is being fitted with it. Do not try to start the car with Blue Bosch coil made in Brazil. This will damage the Perma-Tune CDI box and void the warranty.
Fits:
Porsche 911 1978-83
Porsche 930 3.3L 1978-89 (US cars only)
Take your pick: Basic or Premium
The Gen 6 Perma-Tune for the 911SC comes in two models: the Premium ignition module and the Basic ignition module.
The Basic model is just that, basic: it performs only the same functions as the analog modules did back in the day.
For the average road car, this may be all that is desired and of course is more affordable than the Premium model.
It is however still a high performance part and is perfect for racing venues that do not allow programmable digital ignition systems. The Basic model has a smooth, more original looking housing than the Gen 5 cast housing.
For more information about this product Click Here
DISTRIBUTOR TRIGGER SIGNAL
The second most common cause of SC engine ignition failure is the ignition trigger circuit. Since the ignition box is controlled by the magnetic pulse generator located inside the distributor, any disruption in the triggering signal will cause the ignition box to malfunction. Be aware that the connectors can push back in the housing. Pull the rubber boot back to inspect the connection between the box and harness.
Full disassembly and inspection of the distributor is highly recommended due to the intermittent nature of triggering problems. Pay special attention to the distributor trigger shielded cable ( green wire ), magnetic pulse generator magnet and magnetic pulse generator winding connection as these parts are known to fail in combination. An especially common problem is a broken magnet pole. Evidence of arching between the magnetic pulse generator magnet points indicates a defective rotor. In this case replace the rotor, magnetic pulse winding, green wire and ignition box. The Perma-Tune high performance triggering is so accurate that worn out distributor shaft bearings can be detected by the tachometer. This is indicated by the tachometer needle slightly bouncing at idle. Trigger signal problems can cause double triggering which results in a weak ignition spark. Due to the lower triggering resolution of the stock ignition box, some symptoms of trigger signal problems can be more evident after the Perma-Tune is installed. Refer to the vehicle maintenance manual for triggering signal wave form specifications and distributor repair instructions.
To quickly test the triggering circuit without the use of an oscilloscope: Unplug the harness connector from the ignition box. Refer to the 911SC Installation Instructions diagram, connect an Ohm meter between pins 3 and 6 of the harness connector. To prevent the possibility of misdiagnosis, tug on the green triggering signal wire located at the base of the distributor while viewing the meter. The published specification for the magnetic pulse generator is 600 Ohms +- 100. Our experience has shown that a variation of +- 25 Ohm indicates a need to repair defective connections or to replace the magnetic pulse generator windings.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93060270200
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Fits:
Porsche 987 Boxster 2005>>
Porsche 987 Cayman 2006>>
Porsche 997 MKI & MKII 2005>>
Porsche 997 Turbo/GT2 2007>>
Porsche 997 GT3 2007-11
This product supersedes Porsche's old part numbers:
- 99761815904
- 99761815905
Click 'Zoom in' for large parts diagram.
Diagram ref no 1.
Looking for a reliable replacement ignition switch for your Porsche 997? The Porsche ignition switch (part no. 997 618 159 07) is a genuine OEM part, designed to restore smooth starting and electrical function to your vehicle. Key Features of Porsche Ignition Switch 99761815907
No Programming Required: This ignition switch is plug-and-play. Simply install and use with your existing key and immobilizer system.
OEM Quality: Genuine Porsche part ensures perfect fitment, durability, and long-term reliability. Common Fault Fix: Replaces a worn or faulty ignition switch that may cause starting issues, electrical glitches, or accessories failing to power up.
Updated Design: Supersedes earlier part numbers (such as 99761815900 / 99761815901 / 99761815902) with the latest Porsche-approved version. Vehicle Compatibility The Porsche ignition switch 99761815907 is compatible with: Porsche 911 (997 Carrera, Carrera S, Carrera 4, Turbo, GT2 – various years) Porsche Boxster 987 Porsche Cayman 987 (Always confirm compatibility with your vehicle’s VIN before ordering.)
Why Choose a Genuine Porsche Ignition Switch? Unlike cheap aftermarket alternatives, this OEM ignition switch guarantees correct operation with your Porsche’s electrical and immobilizer system. No coding or reprogramming is required – install it and your car will start and run normally with your original keys.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99761815907
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Fits:
Porsche 987 Boxster MKI 2005>>2008
Porsche 987 Boxster MKII 2009>>2012
Porsche 987 Cayman MKI 2006>>2008
Porsche 987 Cayman MKII 2009>>2012
Porsche 997 Carrera MKI 2005>>2008
Porsche 997 Carrera MKII 2009>>2012
Porsche 997 Turbo / GT2 MKI 2007>>2009
Porsche 997 Turbo / GT2RS MKII 2010>>2013
Porsche 997 GT3.2 2007>>2011
Diagram Ref No 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99761875900
The product you are viewing cross references to these numbers