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P1800 ES 1800 1973

posted by  Ron Kwas on  Thu Aug 22 06:30 CST 2019
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last visit: Fri Oct 24 04:03 CST 2014
[RELATED]

142g;

...correct of course about the PNP transistor switches in ECU, but after looking at it a while more, I realized that I actually got the theory of operation explanation slightly wrong...one would read 0V on BOTH sides of the Injectors, and only see the 3V under dynamic operating conditions with a catch-and-hold DVM or scope...

I have made a mark-up of an excerpt the Kerfoot drawing showing the output stages of ECU with voltages at Injectors under transistor ON and OFF conditions:


Cheers

Edit: I have just added this graphic, plus associated notes to the D-Jet page. See: https://www.sw-em.com/bosch_d-jetronic_injection.htm#Dynamic_and_Static_Injector_Test_Notes





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New P1800 ES [1800][1973]
posted by  rabs  on Sat Aug 17 06:02 CST 2019 >
  • New P1800 ES [1800][1973]
    posted by  142 guy  on Wed Aug 21 10:31 CST 2019 >
    • New P1800 ES [1800][1973]
      posted by  Ron Kwas  on Wed Aug 21 12:48 CST 2019 >
      • New P1800 ES [1800][1973]
        posted by  rabs  on Wed Aug 21 14:04 CST 2019 >
        • New P1800 ES [1800][1973]
          posted by  142 guy  on Wed Aug 21 17:57 CST 2019 >
          • New P1800 ES
            posted by  rabs  on Wed Aug 21 18:55 CST 2019 >
            • New P1800 ES
              posted by  142 guy  on Thu Aug 22 09:37 CST 2019 >
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                posted by  Ron Kwas  on Thu Aug 22 12:02 CST 2019 >
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                  posted by  Chris Mullet subscriber  on Thu Aug 22 13:25 CST 2019 >
                  • New P1800 ES
                    posted by  rabs  on Thu Aug 22 16:26 CST 2019 >
                    • New P1800 ES
                      posted by  Chris Mullet subscriber  on Fri Aug 23 06:18 CST 2019 >
                    • New P1800 ES
                      posted by  Ron Kwas  on Fri Aug 23 06:26 CST 2019 >
                    • New P1800 ES
                      posted by  someone claiming to be ROLFE  on Fri Aug 23 07:41 CST 2019 >
                      • New P1800 ES
                        posted by  Volvo From Heck subscriber  on Fri Aug 23 07:56 CST 2019 >
                        • New P1800 ES
                          posted by  rabs  on Fri Aug 23 21:34 CST 2019 >
                          • New P1800 ES
                            posted by  Ron Kwas  on Sat Aug 24 08:22 CST 2019 >
                            • New P1800 ES
                              posted by  rabs  on Sat Aug 24 09:46 CST 2019 >
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                              posted by  rabs  on Sat Aug 24 15:28 CST 2019 >
                    • New P1800 ES
                      posted by  142 guy  on Fri Aug 23 10:37 CST 2019 >
                      • New P1800 ES
                        posted by  planetman  on Fri Aug 23 12:44 CST 2019 >
                        • New P1800 ES
                          posted by  142 guy  on Fri Aug 23 16:32 CST 2019 >
                      • New P1800 ES
                        posted by  rabs  on Fri Aug 23 16:01 CST 2019 >
                        • New P1800 ES
                          posted by  planetman  on Fri Aug 23 16:43 CST 2019 >
                          • New P1800 ES
                            posted by  rabs  on Fri Aug 23 18:27 CST 2019 >
                            • New P1800 ES
                              posted by  142 guy  on Fri Aug 23 19:55 CST 2019 >
                            • New P1800 ES
                              posted by  planetman  on Fri Aug 23 20:01 CST 2019 >
  • New P1800 ES [1800][1973]
    posted by  c1800 subscriber  on Sat Aug 24 19:24 CST 2019 >
    • New P1800 ES
      posted by  rabs  on Sat Aug 24 21:38 CST 2019 >
      • New P1800 ES
        posted by  derek uk subscriber  on Sun Aug 25 06:05 CST 2019 >


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