hoobby Posted September 12, 2019 Share Posted September 12, 2019 Temp sensor II pic above showing 370 ohms at 20 degs c ( ECU thinks +60 deg c )was fine before local company (bleed screw replaced) broke the thermostat housing and had to weld it back together sensors were not removed so I guess it's killed the sensor.would this be Bosch 0280130026? .(pic below) the single wire for temp gauge what is the other ones purpose as this had the same treatment Haynes just says temp sensor no test info for this. Quote Link to comment Share on other sites More sharing options...
Jessopia74 Posted September 12, 2019 Share Posted September 12, 2019 (edited) Temp sensor for jetronic. Edit - found it. http://www.type17.ch/downloads/Injection/Bosch - L-Jet - Troubleshooting.pdfhttp://www.cardiagnostics.be/-now/Educational_sites_bestanden/BOSCH L-Jetronic Injection Manual.pdf And new item https://www.ebay.ie/itm/Temperature-Sensor-20E-25E-30E-Kadett-Manta-Monza-Senator-Commodore-Cih-GTE-/123816556178 Edited September 13, 2019 by Jessopia74 1 Quote Link to comment Share on other sites More sharing options...
hoobby Posted September 12, 2019 Author Share Posted September 12, 2019 Thanks Jess all downloaded.forgot to mention once engine has warmed up a bit she purrs so just a cold start prob.will check over the system over the weekend. 1 Quote Link to comment Share on other sites More sharing options...
hoobby Posted September 13, 2019 Author Share Posted September 13, 2019 (edited) After much digging around on the net found test for the thermo timer sensor (brown vertical sensor) all tests are with cold engine below 30c w to ground 0 ohms G to w 25-40 ohms G to ground 25-40 ohms I'm glad to report this survived it's welding experience. Oh Jess can you edit your test for sensor II 1760f is 960c hot enough to melt aluminium . Edited September 13, 2019 by hoobby That's hot! Quote Link to comment Share on other sites More sharing options...
Jessopia74 Posted September 13, 2019 Share Posted September 13, 2019 1 hour ago, hoobby said: After much digging around on the net found test for the thermo timer sensor (brown vertical sensor) all tests are with cold engine below 30c w to ground 0 ohms G to w 25-40 ohms G to ground 25-40 ohms I'm glad to report this survived it's welding experience. Oh Jess can you edit your test for sensor II 1760f is 960c hot enough to melt aluminium . Good Find I pulled the info, document link has some tests, best not to ask people to melt things 🤣 Quote Link to comment Share on other sites More sharing options...
hoobby Posted September 13, 2019 Author Share Posted September 13, 2019 Thanks but I have the same issue Haynes test for thermo timer. above 35c 50-70 ohms below 35c 3-5 ohms this is taken across the two pins on the unit my switch (34 ohms below 30c) passes all the tests I supplied but fails the Haynes test. Quote Link to comment Share on other sites More sharing options...
Jessopia74 Posted September 13, 2019 Share Posted September 13, 2019 Test at ECU side too - and also lamp method for cold start Injector? 1 Quote Link to comment Share on other sites More sharing options...
hoobby Posted September 13, 2019 Author Share Posted September 13, 2019 (edited) The bulb lit for 4 seconds and the fifth injector is spraying a steady good pattern so the thermo switch is ok for cold start. Have ordered a new temp II as test shows its telling the ECU it's at running temperature.many thanks for the help will update when I have fitted it. Edited September 13, 2019 by hoobby Quote Link to comment Share on other sites More sharing options...
Jessopia74 Posted September 13, 2019 Share Posted September 13, 2019 Excellent, at least figured out cold start is running and which sensor is fubar 👍 Quote Link to comment Share on other sites More sharing options...
hoobby Posted September 22, 2019 Author Share Posted September 22, 2019 (edited) At 20c That's more like it.haven't fitted it yet but plugged it in engine started on first turn and purred like she used to will try to fit during the week but very busy with the D1 mot . thanks for the help Jess .drained and removed and put in the freezer -16c 0.7k ohms....fubar. Edited September 22, 2019 by hoobby Test Quote Link to comment Share on other sites More sharing options...
Jessopia74 Posted September 22, 2019 Share Posted September 22, 2019 10 minutes ago, hoobby said: At 20c That's more like it.haven't fitted it yet but plugged it in engine started on first turn and purred like she used to will try to fit during the week but very busy with the D1 mot . thanks for the help Jess Hey, thanks for the test data, very useful. Glad its all sorted Quote Link to comment Share on other sites More sharing options...
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