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Control Module replacement on 1997 850

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erikv11
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Year and Model: 850, V70, S60R, XC70
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Post by erikv11 »

Yes they are both the same and that's a good price for the Bosch part (and the right part), fine to jump on it. 137k it isn't even half way if you want to do the maintenance.

Connector is a good point, but that can be tough to diagnose. A junkyard MAF (i.e. a known good one) helps with that.
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 201k
'07 XC70, black, 205k
'07 XC70, willow green, 223k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k

DavidB
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Joined: 11 Sep 2016, 00:00
Year and Model: 1997 850
Location: Aurora

Post by DavidB »

I did note that you mentioned the connector. What am I looking at for that? Do you mean the little electrical plug that I unplugged from the MAF or the physical tubing itself?

If it is the little electrical plug, what should I be looking for?

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misha
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Post by misha »

About your edit:......N O ! ! ! :mrgreen:

About connector.....it's clipped and it can't be loosened or something like that.The problem is in wires which connects to pins....before the connector itself.

The only way is to secure the wiring towards down:
MAFtr.jpg
MAFtr.jpg (30.6 KiB) Viewed 609 times
2010 S80 D5 / restyling / fully equipped / Twin turbo / Savile Gray Metallic (492)

History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon

DavidB
Posts: 16
Joined: 11 Sep 2016, 00:00
Year and Model: 1997 850
Location: Aurora

Post by DavidB »

the connector was not loose or anything, I didn't look at the pins for corrosion, bent, damage, etc, but I'll do that just in case, I can't imagine what else I can look at it for though... ?

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