Volvo RWD 1800 Forum

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P1800 ES 1800 1973

OK. If you can’t remove the CSV then disconnect the hose, plug the hose, and see if it has a good effect on you pressure leak-down rate.

As a secondary test you can connect a piece of good quality clear hose to the CSV, fill the hose with gas, apply constant air pressure of ~30 psi behind the gas, and see if the fuel disappears through the valve.

About the MPS... disconnect the vac hose from the intake and suck, suck, suck on the hose. You should be able to hear the diaphragm inside the MPS being pulled down. You should be able to suck the diaphragm all the way to where it stops and it shouldn’t leak any air (proven by placing ones tongue on the end of the hose). If it won’t hold a vacuum then it’s toast and you need to make friends with Planetman (Eric) for a replacement. Even if it does hold vacuum its no guarantee that it’s reading correctly but I’m pretty sure most MPS failures are due to leaking diaphragms.

Please don’t give up on the d-jet. Too many of them have been converted to carbs for little reason. It’s not a perfect system but.....






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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 >
              • New P1800 ES
                posted by  Ron Kwas  on Thu Aug 22 12:02 CST 2019 >
                • New P1800 ES
                  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 >
                            • New P1800 ES
                              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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