May 18, 2014 all mapecu wiring diagrams are in pdf format and will open in a new window when you click on the name. Wm porsche 928 factory manual vol 1a free ebook download as pdf. At the bottom of the page electrical ground, it is. Early radio manual blaupunkt porsche cr stereo type us body info, locking system operation, climate control description, relay and fuse assignment, warning. Below are a few of the leading illustrations we obtain from various sources, we really hope these images will certainly work to you, as well as with any luck very pertinent to exactly what you want regarding the porsche 928 wiring diagram is.
The wiring harnesses are different, the 1985 1986 use a 25 pin connector to the module, the 1987 and newer use a 35 pin connector. This will allow for the smoothest possible installation with the least repetition. Apr, 2015 this article applies to the porsche 993 19931998. Dropin programmable replacement ecu for motronic dme. Electrical diagrams 911sc 1978 electrical diagrams 911sc 1982 part 1 page 1, page 2. Porsche cars fault codes dtc the history of the german porsche brand began in 1931 when ferdinand porsche, a wellknown designer of the time, who worked at auto union and daimler, decided to establish his own car brand. I spent several years getting the car into top mechanical shape catching up on some lapsed or poor maintenance. We get a lot of people coming to the site looking to get themselves a free porsche 928 haynes manual. Disconnect both of these by grasping the ends of the connector and rocking the connector side to side while pulling down. Contact us for diagnostic information for earlier 928s.
Porsche 911 s warm up regulator recondition and modification duration. Technical resources and info related to the early porsche 928. In 2005 porsche 928 enthusiasts in the netherlands under the name of 928 ecu. Zel is the central electrical panel, follow the last part of page 1, insert a jumper from 1 to 6 on power socket z on the main panel to bypass the alarm. The jdsporsche sharktuner mk2 for the porsche 928 my 1987 onwards allows the optimisation of the fuel maps and. This is particularly important if the engine has been modified in any way e. With its 5050 weight balance, i thought it would make an interesting project for development. To get started, select the appropriate highquality original pdf fixit manual for your 928, to get the problem sorted right away 19751995 porsche 928 workshop service repair manual 19771995 porsche 928 service repair manual instant download 77. Wiring diagram type 928 s model 85 page flow diagram, size. We replaced the ecu for an augtronic ecu along with wasted spark ignition and electronic boost control all nicely integrated into the wiring loom for a neat, tidy and reliable installation. Repairing your porsche 928 central warning system cws.
Porsche 928 s 1990 wire diagram wiring diagram pdf download. This miracle of 1980s electronics takes the inputs from the sensors on you 928 and compares them to a reference or another input and then drives the. These were even more advanced and updated for modern porsche models of today. The 1985 1986 engines do not have the provisions for spark knock sensors and the cam position sensor that the ezk requires. Porsche 928 questions im working on a 1988 porsche 928 s4. Looking for a free porsche 928 haynes porsche 928 chilton manuals. I can accept no responsibility for the outcome of any actions taken based the information presented in this document.
For a porsche 928 gts you have to be ready to travel to where the cars are since there were only about 410 gtss ever imported into the usa only 140 in 1994 model year. This procedure is for a 1984 porsche 928 s controller. Fuel distributor repair 928 33 fuel pump repair 34 pressure regulator repair 35 warmup regulator repair 911 35 injector removal 928 36 throttle activated valve 36 electric wiring diagram 37 parts list 39 test sheet 40 porsche kjetronic. The history of the german porsch e brand began in 1931 when ferdinand porsch e, a wellknown designer of the time, who worked at auto union and daimler, decided to establish his. Here, youll find a revised schematic intended to clear up issues found in the original publication. The engine control unit ecu is the computerized brain of the car that controls the functionality of some engine components.
Todays featured repair is replacement of the ecu engine control unit computer on a 1988 porsche 928 s4. The ezk ecu is triggered by a signal from the crank position sensor also called the rpm sensor in the wiring diagram on page 97275 in the factory workshop manual. Theres a connector on the left of the pod and one on the right. Wiring diagram type 928 gts model 93 the wiring diagram comprises of 12 individual wiring diagrams, 1 sheet construction components and 1 sheet plug connections, ground points, mnumbers and abbreviations. Page 2 wiring diagram type 928 s model 90 the wiring diagram comprises of 11 individual wiring diagrams and 1 sheet construction components, plug connections and ground points and 1 sheet legend. Airfuel ratio meters, diagnostic scanners, dial indicators, valve spring compressors. Porsche 928 service repair manual porsche 928 pdf downloads. If there is a fault in the cps or its wiring, there will be no rpm pulse to the ezk ecu, thus no trigger signal to the lh ecu, thus no fuel pump relay activation. However, please read through all this manual initially quick start. Each individual wiring diagram comprises a part of the centralelectrical system within a dashdot frame. Imagine that you are looking at a diagram that shows waterfalls emptying into a lake. In addition, we provide customized services that include. In 2005 porsche 928 enthusiasts in the netherlands under the name of 928ecurepair started working on the protocols of this diagnostic.
The jds porsche diagnostic tester is an enhanced flashing code tester for ecu fault code reading, clearing fault codes, idle adaptation, and digital dash diagnosis on porsche cars from 1987 1994. Dark blue and dark green graphs are with stock ecu it produced 156 rwkw. Wiring diagram wiring loom 1989 s4 gt gts porsche 928 electrics wdp only layout of t18 14p at side wall connector. Your auto repair done right, only the work you need with no add ons. Duraenth1 more info 928 and 928 gt coupe 199091 928 gts coupe 199395 928 s4 coupe 1989. At 928 motorsports, we design, manufacture, and sell top quality performance products and superchargers for your porsche 928 or other exotic car. View and download porsche 928 workshop manual online. Porsche 928 s 1990 wire diagram wiring diagram pdf. This webpage contains porsche 928 1988 workshop manual pdf used by porsche garages, auto repair shops, porsche dealerships and home mechanics. Purpose of this is to catalog and include a comprehensive, relevant and accessible database for your porsche 928. This is particularly important if the engine has been modified. New features are mouse hover function and language selection. New listing 1978 porsche 928 owners manual 78 original us driver operating book booklet. Porsche 928 1978 owners manual pdf free workshop manuals.
This webpage contains porsche 928 1978 owners manual pdf used by porsche garages, auto repair shops, porsche dealerships and home mechanics. Sharktuner mk 1 and mk 2 and sharkplotter remap your 928 fuelling. Im working on a 1988 porsche 928 s4, ac inop, ecu has a bad driver, customer doesnt want want to spring for a reman ecu, do you know of a slick work around or repair other than running a jumper wire from the switch to the evap temp switch. The 928 s4 ezk module will not work with the 1985 1986 porsche 928.
With this porsche 928 workshop manual, you can perform every job that could be done by porsche garages and mechanics from. Wiring diagram type 928 s model 86 page 4 ventilation, heating, air conditioning electrically operated seats. Porsche 928 automotive repair manuals car service and. View and download porsche 928s 1986 wire diagram wiring diagram online. These were pointed out earlier with the green arrows. In 1989, porsche redesigned the diagnostics wiring loom and fitted the.
Each individual wiring diagram comprises a part of the centralelectrical system. Learn about this problem, why it occurs, and how to fix it. Porsche 928 engine control unit control unit 92,861,810,609 0,280,002,101. This overview provides insight into porsche 928 s4 and newer. Porsche wire information your porsche wire information.
The porsche 928 engine chips come with a disk to increase or reduce power thereby improving fuel mileage. Wiring diagram type 928 s model 86 page porsche 928 repair. The car was originally running a motec ecu with a 602 missing tooth wheel. Under the left foot pedal dead pedal of the porsche 928 lives the central warning system cws controll er.
Get the best deals on engine computers for porsche 928 when you shop the largest online selection at. The porsche 928 from the 1987 through the end of production in 1995 used separate bosch. A relay is an electrical mechanical device that enables high current load switching controlled by a small current signal. No affiliation with porsche ag or porsche cars north america inc. Specialized ecu repair did a fantastic job on sourcing us a new alarm module, two keys, waterproof case, and getting everything programmed and immobilizer synced up for a 986 boxster s. Porsche also developed a pst2 diagnostic pc and the bosch kts500 for use in their workshops. Assume you mean no wiring diagram for the alarm on a 79 car, correct it is not part of the standard wiring diagram these may help. Durametric diagnostic tool for porsche, enthusiast package. Porsche 928 wiring issues due to deteriorated connectors 5 reports. They send you just about everything you need to do the job including an e12 socket for seat removal, gloves, deoxit corrosion cleaner etc. The spanner diagnostic tester for the porsche 928 jds porsche. The early 928 vacuumactuated climate control system can be complicated to understand. The porsche 928 uses relays to control many of electrical circuits. Common nostart diagnostics for 1987 1995 porsche 928s.
Carrera porsche 911 2 1992 2dr coupe wiring information. Sharktuner for the porsche 928 the jdsporsche sharktuners for the porsche 928 my 1987 onwards allows the optimisation of the fuel and ignition maps to ensure optimum performance from the engine. Porsche 928 19781995 workshop repair service manual pdf. This 6 page procedure is designed to guide you through setting a baseline fuel tune on your early 928 with bosch kjetronic cis. Get the best deal for engine computers for porsche 928 from the largest online selection at. For porsche 911 924s 944 968 wiring harness connector 14pin male oes 9116121 fits.
The beauty of these power chips is that they actually give you the power to tune your engine. When the lh fuel injector ecu receives this rpm signal it will energise the fuel pump relay. Mapecu wiring diagrams piggyback ecu map sensor map ecu. If you do not have acrobat reader, please click the button below to download it from adobes website. Wiring diagram type 928 s model 84 page 01 wiring 97 central electric 6 3 f e d c b a f e 3 c 3 4 g9,hb. See lh and ezk diagram website pages for pin assignments mentioned below. The workshop manual is only for the internal use of the porsche dealer organization. Porsche 928 5litre 32 valve engine the porsche 928 v8 was always a favourite of mine.
Porsche 928 gt modified engine brisbane dyno tuning by emtec. Primary focus is for 1978 with either an manual or. Need 1995, 1994, 1993, 1991, 1990, 1989, 1988, 1987, 1986, 1985, 1984, 1983, 1982, 1981, 1980, 1979, 1978 porsche 928 wiring electrical connector parts. It provides the home mechanic or independent porsche specialist with a cost effective and invaluable tool to aid servicing and fault finding on. The car would not start due to the fuel pump not switching on and after a lengthy, detailed and thorough diagnosis, testing all related wiring circuits we found the ecu had an internal fault. It is an open secret that the porsche 928 ecu performance chips are the definitive upgrade you can ever give your car.
Next, disconnect the instrumentation cluster wiring harness leads from underneath the pod. This guide is for use in conjunction with legal copies of the porsche 928 factory workshop manuals. Porsche 928 gt 1991 wire diagram wiring diagram pdf download. Porsche 928 i managed to go just a mile before ramming it into some crash barriers at a. Aug 25, 20 wiring diagram type 928 s model 86 page 4 ventilation, heating, air conditioning electrically operated seats. Apr, 2020 the porsche 928 continuous injection system is very robust when properly set up. However as the gt variant was the last sporting evolution of the model. Porsche 944 electrics browse by all 321919505 321 919 505 477955531a 477 955 531 a 928 615 101 01. However, it requires clean fuel and pressures set to the correct specifications. Porsche 928s 1986 wire diagram wiring diagram pdf download. Wm porsche 928 factory manual vol 1a throttle manual. Lhjetronic ecu repair diagnostics electronik repair, inc. Many 928 are still operating with their original relays, so failures are common.
766 1156 1286 29 647 1393 196 1633 1322 1348 10 570 992 842 398 598 1598 869 47 1197 15 753 694 1439 380 742 413 696 1280 262 454 204 1044