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Envious Samba Member

Joined: January 08, 2003 Posts: 1824 Location: Toronto, Ontario, Canada
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Posted: Thu Jun 12, 2025 3:47 pm Post subject: 84 won’t start if ECT is connected |
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Replaced the water pump and after reassembly, it wouldn’t start. It ALWAYS starts right up. Unplugged the ECT sensor and it started immediately. I suspected a faulty sensor so I replaced it. Same issue. Starts right away as long as the ect is disconnected.
Thoughts? _________________ 71 Type 1302 Custom
64 Type 151
63 Type 117 L469 Anthracite
64 Type 361 L575 Nutria
64 Porsche 356c
56 Type 113 L227 Strato Silver
52 BSA C11G
59 Heilite Single Wheel Camping Trailer
56 Allstate Single Wheel
84 Vanagon Westfalia
http://www.thesamba.com/vw/forum/viewtopic.php?t=388225 |
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Ahwahnee Samba Member

Joined: June 05, 2010 Posts: 10220 Location: Mt Lemmon, AZ
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Posted: Thu Jun 12, 2025 4:25 pm Post subject: Re: 84 won’t start if ECT is connected |
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Are you referring to the Temp II sensor?
If yes, you can easily test it using the graph in the Bentley or the ProTraining manual.
If you test it at the ECU you will also be testing the portion of the wiring harness that connects to it. |
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jlrftype7 Samba Member
Joined: July 24, 2018 Posts: 4555 Location: Chicago
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Posted: Fri Jun 13, 2025 7:18 am Post subject: Re: 84 won’t start if ECT is connected |
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Check to see if any wires got pinched during the water pump replacement. Also look at the end of the Temp 2 sensor and see if the pins are still fully seated into the connector. Sometimes on that style of connector, they walk backwards as you're installing the connector, and it's hidden by the rubber protection boot that it's happening. _________________ '68 Westy- my first VW and vehicle/Bus- long gone.- sold it to a traveling Swiss couple....
'67 Type 3 Fastback, my 2nd car- gone
'69 Semi-Auto Stick Shift Beetle-gone
2017 MINI Coopers, our current DDs
‘84 Tin Top - Hilga....Auto |
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