Thread: 1800 Cars: - Thermal sensor time sender
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Old Oct 20th, 2020, 23:37   #5
142 Guy
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Location: Saskatchewan, Canada
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Originally Posted by JimR View Post
Hi all, my P1800ES has a failed Thermal sensor time sender which controls the cold start injector. The injector is being operated even when the engine is hot causing very difficult hot starting. The only replacement I can find is part no. 462632 at Nordicar for £180.00 + £15.00 delivery. Does anybody know of an alternative item or supplier? Any help would be much appreciated.Best regards Jim.
If yo are prepared to get creative, the 241726 sensor is available from RockAuto for a very low price.

https://www.rockauto.com/en/moreinfo...497757&jsn=398

Add in a 1 board processor such as a trinket, a small transistor, recirculating diode and a relay to the cost of the 241726 sensor and if you have some minimal C coding skills you could build a replacement for the thermal timer for about $50 Cdn $. For another 0.10 c, you could put an indicator LED on it to tell you when the injector was on and off. The one board processor would allow you to program any time and temperature points into it that you want - if you think you know better than Volvo / Bosch.

PS That Nordicar price was in Euro not £ which means that the cost of the part is only 1/2 a nose bleed, not a full nose bleed!
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