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1985 244 -- Knock sensor problem. 200 1985

uid 46171's pic
posted by  kittysgreyvolvo on  Sat Dec 1 08:14 CST 2018
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last visit: Sat Oct 18 15:23 CST 2014
[RELATED]

Also good to set the year.

The knock sensor is essentially a microphone attenuated to the valve ping or pre-ignition. The ignition ECU when "hearing" the sound through the knock sensor than changes the ignition timing though timing advance.

Volvo PN 1317296. Bosch may no longer make it. Using Bing and Google may uncover the current OEM brand that you can purchase for far less.

An ebay auction for made in Japan OEM:

https://www.ebay.com/itm/Volvo-Knock-Sensor-Genuine-Volvo-1317296/223070572923

Another auction:
https://www.ebay.com/itm/Volvo-Knock-Sensor-Genuine-Volvo-1317296/223250686275

Tasca has it:
https://www.tascaparts.com/oem-parts/volvo-sensor-1317296

The factory installed style or version you have that fractured at the ABS plastic housing was made by Bosch, I guess.

You do have a host of self service junkyards around you in Snohomish, King, Pierce, Thurston, and other nearby counties. I guess any < LH-2.2 (1988 or older) Volvo has the part.

https://volvoforums.com/forum/volvo-240-740-940-12/need-help-identifying-sensor-83-240-a-64477/

Hope that halps.

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