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- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1978-1989 3.3L Turbo (930)
Premium version
(Bosch Ref 0227300004)
New Perma Tune Gen 6
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 Gen 6 Premium Perma-Tune makes diagnostics easier by providing onboard diagnostics that are automatically displayed by two coloured LED function lights. These LED lights assist in diagnosing both the vehicle and the ignition module. The green LED is a status indicator that can flash diagnostic fault codes. The red LED is a strobe light that flashes each time the coils fires in the same manner as a timing light. This LED is especially useful for detecting intermittent engine misfire caused by wiring or distributor problems.
These LED function lights are mounted in the harness electrical connector and can only be seen when the module is powered up. There are three self-resetting overload protectors that assist in troubleshooting while protecting your Perma-Tune from damage. The overload protectors are hidden underneath the ignition module so they do not spoil the original look of the part. Refer to the Diagnostics section of this web site for more information about the diagnostics system and overload protectors.
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 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Fits: RHD or LHD CARS
Fits:
Porsche 986 Boxster 1997-04
Porsche 996 upto 2004
*Tip:
If you have a sticky key lock or the key is difficult to get out then replace the steering lock housing, sticking key lock is a very common problem on Porsche 996 and Porsche Boxster 986 models.
Code: 99634701707
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
4A0905849B
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Ignition Problem Symptoms:
- Car won't start
- Tough to start
- Key gets stuck in ignition
- Key sticking in tumbler
Fits: RHD or LHD CARS
Fits:
Porsche Boxster 986
Porsche 996 upto 2004
Diagram Ref No. 20
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99634701707
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
Fits:
Porsche 986 Boxster 2001-04
Porsche 996 2002-05 TARGA
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99663735100
The product you are viewing cross references to these numbers