"

Identify Your Porsche® 928


Identification of Your Porsche® 928 Model, Engine & Injection System

Model: 928

Manufactured: 10/1977 through 1982
Units Manufactured: 17,669

Powerplant Options:
1977-79 219 HP 16v 4.5L K-Jetronic ( North America )
1977-79 229 HP 16v 4.5L K-Jetronic (Rest of World )
1980-82 220 HP 16v 4.5L L-Jetronic ( North America )
1980-82 229 HP 16v 4.5L K-Jetronic (Rest of World )

Identification of Your Porsche® 928 Model, Engine & Injection System

Model: 928S and S2

Manufactured 1980 through 1986
Units Manufactured 13,321

Powerplant Options:
1980-83 300 HP 16v 4.7L K-Jetronic (Rest of World )
1983-84 234 HP 16v 4.7L L-Jetronic ( North America )
1984-86 310 HP 16v 4.7L LH-Jetronic (Rest of World )

Identification of Your Porsche® 928 Model, Engine & Injection System

Model: 928S3

Manufactured 1985 and 1986
Units Manufactured 9,341

Powerplant Options:
1985-86 288 HP 32v 5.0L LH-Jetronic ( North America )

Identification of Your Porsche® 928 Model, Engine & Injection System

Model: 928S4

Manufactured 1987 to 1991
Units Manufactured 16,213

Powerplant Options:
1987-91 316 HP 32v 5.0L LH-Jetronic (All)

Identification of Your Porsche® 928 Model, Engine & Injection System

Model: 928GT

Manufactured 1989 to 1991
Units Manufactured 1,620

Powerplant Options:
1989-91 326 HP 32v 5.0L LH-Jetronic (All)

Identification of Your Porsche® 928 Model, Engine & Injection System

Model: 928GTS

Manufactured 1992 to 1995
Units Manufactured: 2,831

Powerplant Options:
1992-95 345 HP 32v 5.4L LH-Jetronic (All)


Identify Your Porsche® 928 Engine

These photos will show you where to find the engine model on a Porsche® 928. There will be two numbers stamped into the block just below the upper radiator hose as shown. The top number is the Engine Serial Number. Below that will be the Engine Model Number, beginning with "M28/xx" The model of the engine is the two digits after "M28/"

The Model number will identify the compression ratio, Horsepower, Torque, and factory fuel system for that motor.

 


Identify Your 16v Fuel Injection System

There were one of two fuel injection systems installed on the 16v Porsche 928 engines, depending on where the finished automobile was going to be shipped (North America or ROW) and which engine was selected. It is easy to tell them apart.

Open the hood and look at the intake manifold. The K-Jetronic system (or "K-Jet) is a mechanical injection system. You can identify it by the fact that each fuel injector has a hard metal line feeding it and there are no wires to the injectors. See Picture.

The L-Jetronic system (or "L-Jet") is a first-generation electronic fuel injection system. You will see there is a fuel rail that runs across all the injectors (yellow arrows) and the injectors are attached to that rail by short rubber hoses. Also, each injector has some wiring going to it (Green arrows).

 

 

Porsche® 928 Option Codes

Download 928 Option Codes

C00Eurospec emissions
C02 Equipped with catalytic converter
C03 California emissions
018 Sports Steering Wheel with Elevated Hub -30mm
020 Speedometer with Two Scales - MPH-KM/H
024 Version for Greece
026 With Activated Charcoal Canister
027 Version for California
034 Version for Italy
058 Impact Absorbers - Front and Rear
061 Version for Great Britain
062 Version for Sweden
063 Version for Luxembourg
111 Version for Austria
113 Version for Canada
114 Version for Taiwan
119 Version for Spain
124 Version for France
126 Control and Indicators in French Lettering
127 Control and Indicators in Swedish Lettering
130 Control and Indicators in English Lettering
139 Seat Heating System, Left Seat
150 Without Catalyst
151 Engine with deferring Parts - Switzerland, Sweden, Australia
157 * USA, Canada
157 Three-Bed Catalyst, Oxygen Sensor and Digital Electrical Engine Equipment
158 Radio, Blaupunkt Reno SQR 46
185 Safety Belts 2-Point, Rear Automatic
186 Seat Belt for Back Seats
187 Headlamps with Sealed Beam Insert "Asymmetric"
190 Increased Side Door Strength (USA, Canada, Australia
193 Version for Japan
195 Prepared for Cellular - Telephone System
197 Stronger Battery
208 Trailer Coupling
215 Version for Saudi Arabia
219 Differential 87-89
220 Locking Differential - 40%
221 Porsche Locking Differential-PSD (90-91)
240 Version for Countries Having Inferior Fuel Qualities
249 Automatic Transmission
251 Automatic Transmission, Shorter Gear Ratio - Switzerland, Sweden, Australia
261 Outside Mirror for Passenger Side-Plain-Electrically Heatable/adjustable, US CDN, Switzerland
277 Version for Switzerland
286 Intensified Windshield Washer
293 Prepared for Telephone, BECKER B-2 Network - (87-89, Federal Republic of Germany)
295 Prepared for Telephone, TEKADE B-2 Network - (87-89, Federal Republic of Germany)
298 Catalyst together with Manual Transmission (87-89)
298 Prepared for Unleaded Fuel - Manual Transmission
299 Catalyst together with Automatic Transmission (87-89)
299 Prepared for Unleaded Fuel - Automatic Transmission
317 Equipment for Countries with Dust-Laden Air
319 Changed Step-up of Fan - Japan, Saudi Arabia, Hong Kong, Australia
325 Version for South Africa
326 Radio, Blaupunkt Berlin IQR 88 with ARI
327 Radio, "Symphony RDS"
328 Radio, Blaupunkt Bremen SQR 46 with ARI
329 Radio, Blaupunkt Toronto SQR 48
330 Radio, Blaupunkt Toronto SQR 46
331 Radio, "Porsche CR-1"
332 Radio, "Porsche CR-2"
335 Automatic Safety Belt 3-Point, Rear
340 Seat Heating System, Right Seat
341 Central Locking System
347 Forged Wheels Platinum Anodized, Rim 7 x16 , Tire 225/50VR-16
383 Sport Seat Left, Electrical Vertically Adjustable
387 Sport Seat Right, Electrical Vertically Adjustable
393 Club Sport - Forged Wheels - 8x16 front, 9x16 rear (88-M637 & 89-M639)
395 Forged Wheels Silver Colored Anodized, Rim 7 x16 , Tire 225/50VR-16
395 Light Metal Rims - Forged
400 Cast Aluminum Wheel, Club Sport (Design 90), 7.5 x16 front, 9 x 16 rear
401 Wheel - Cast Aluminum Alloy, Telephone Design, Rim 7 x16 , Tire 225/50VR-16
403 Cast Aluminum Wheel, "Cup" 7.5 x17 front, 9 x 17 rear
406 928S - Anniversary Car , 82 "50 Years of Porsche" - MeteorMetallic w/Burgundy Interior
409 Sport Seats (83-84)
410 Sport Seats, Seat and Backrest Surface Cloth/Leatherette
415 Widening of the Gauge on the Track of Rear Axle (21mm spacers, extended wheel studs)
417 Rear Package Box
418 Side Protection Moldings
423 Box for Cassettes and Coins
430 Fog Head-lamp Yellow
437 Comfort Seat - Left - Electrically Adjustable
438 Comfort Seat - Right - Electrically Adjustable
441 Prepared for Radio (87-89)
454 Automatic Speed Control - USA, Canada
460 Additional Intank Fuel Pump - Australia , Japan
462928 - Special Model 82 "WEISSACH" - Hellbronze Metallic w/Leather Medium Brown Int.
462 Windshield - Sekuriflex
463 Windshield Clear
466 2nd Rear Fog Lamp - Great Britain, Hong Kong
467 Outside View Mirror for Driver Side - Convex - Electrically Heatable and adjustable
468 Side Glasses Green and Windshield Green- Upper Part Darker Colored (83-84)
470 Without Front and Rear Spoiler
471 Integrated Rear Spoiler (87-89)
473 With Front Spoiler and Rear Spoiler - 928S
474 Shock Absorber (SPORTING) Front and Rear
475 Brake Pads without Asbestos
479 Version for Australia
481 Manual Transmission
482 Tire Pressure Gauge (RDK)
483 Deferring Engine Parts for Right-Hand Drive
484 Symbols and Insignias for Switches and Instruments - USA
488 Inscriptions in German Language
489 Switches and Insignia in German Language
490 Sound System
492 For Left-Hand Traffic
494 Additional Amplifier
496 Prepared for PHILLIPS Telephone "C-Network"
498 Without Vehicle "Type" Lettering on Rear End
499 Sekuriflex Windshield (83-84)
513 Back-Support (Lordose) - Right Seat
525 Anti-Theft Device with Continuous Sound - Switzerland
528 Outside View Mirror for Passenger Side - Convex - Electrically Heatable and adjustable
533 Anti-Theft Device
537 Seating Position Control for Comfort Seat - Left
538 Seating Position Control for Comfort Seat - Right
553 Version for USA, Canada
561 Airbag - Driver's Side
562 Airbag - Driver's Side and Front Passenger's Side
563 Airbag - Passenger Side
564 Without Airbag
567 Windshield Tinted, Upper Part Darker Colored
568 Tinted Side Glasses and Tinted Windshield
570 Air Conditioner with Improved Efficiency (Rear A/C)
573 Air Conditioner
576 Without Rear Fog Lamp
586 Back-Support (Lordose) - Left Seat
593 Antilock Braking System (Bosch ABS)
595 Rear Spoiler with Color of Car
602 Araised Stop Lamp
611 Preparation of Telephone Installation, Nokia "D-Network"
612 Prepared for PHILLIPS Telephone "C2-Network"
614 Preparation of Telephone Installation, Motorola "D-Network"
637 Special Version "Club Sport" 88
639 Special Version "GT" 89
650 Electrical Sliding Roof
680 HI-FI Sound System with Booster
685 Rear Seats, Divided
686 Radio, Blaupunkt Ludwigsburg SQM 26 + ARI
688 Radio, Blaupunkt Boston SQM 23
690 CD-Player "CD-10", Radio + ARI
691 CD-Player "CD-2" with Radio
692 CD-Changer "Porsche CD C-1"
693 CD-Radio London RDM 42
900 Tourist's Cars - USA , Canada
933 Seat Covers, Rear , Cloth/Leather/Leather
935 Seat Cover, Rear - Draped Leather
948 Seat Covers, Front , Cloth/Leather/Leather
980 Seat Cover - Draped Leather
981 Leather Equipment
983 Sitzbezug Front Leather
985 Parts Having a Luster of Silver
986 Partial Leather
XF2 Leather Instrument Housing
XM6 Leather Door Openers and Handle Recess Plates
XJ3Leather Locking Knobs and Plates
XN7Leather Parking Brake
XP7Leather Seat belt Lock and Housing
XP6Leather Seat Belt Hinges
XR3Leather Front Seat Hinges
XR5Leather Backrest Lock Controls
XL4Rootwood Center Console, Door Panel and Trim Inlays w/Analog Clock (Dark in Color)
XL5Rootwood Center Console, Door Panel and Trim Inlays w/Analog Clock (Light in Color)
XH6Leather Horn Button
XJ2Leather Impact Post
XJ8Leather Shift Cover (Automatic Trans.) Color to Sample
XK7Leather Shift Cover (Manual Trans) Color to Sample