The original MAF could be just fine, hopefully you kept it because misha is right, aftermarket MAF = very bad idea.
It is a well known problem on these cars that the MAF connector can get messed up. E.g. from www.matthewsvolvosite.com/forums/viewtopic.php?t=42649 some typically great advice from guru jimmy57: "... spray a cleaner on the MAF connector and then plug/unplug a few times and then cable tie the wiring harness to MAF to the MAF body. The harness being loose was causing erratic signal or no signal at times. It's worth a try since it is easy and cheap. You can use WD-40 or other penetrating spray as the cleaner."
1998 V70 NA Failed Emissions High CO and HC at idle
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erikv11
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- Year and Model: 850, V70, S60R, XC70
- Location: Iowa
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Re: 1998 V70 NA Failed Emissions High CO and HC at idle
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6
153k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6
153kgone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
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misha
- Posts: 5379
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Cleaning a Maf with wd40???
I wouldn't do that!
I wouldn't do that!
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon
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
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
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erikv11
- Posts: 11800
- Joined: 25 July 2009
- Year and Model: 850, V70, S60R, XC70
- Location: Iowa
- Has thanked: 292 times
- Been thanked: 765 times
I hope not!
Always good to actually read the post misha
, jimmy57 is crystal clear in discussing the connector, not the interior of the housing where the actual MAF sensor is located ...
Always good to actually read the post misha
, jimmy57 is crystal clear in discussing the connector, not the interior of the housing where the actual MAF sensor is located ...'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6 153k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6
153kgone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
-
misha
- Posts: 5379
- Joined: 7 December 2008
- Year and Model: '97 850 2.5 20v
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I'm following it from begining,but somehow i just saw this:
"You can use WD-40 or other penetrating spray as the cleaner."
"You can use WD-40 or other penetrating spray as the cleaner."
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon
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
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
-
rspi
- Posts: 7303
- Joined: 5 November 2011
- Year and Model: 850 T-5R Wagon
- Location: Cincinnati OH
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Contact:
Contact rspi..
Do your best to get an OEM MAF.
The wire harness plug is a not so common issue with the MAF plug. Many of them have a zip tie on them.
Do get the PCV kit and replace that ASAP. Most people pull way more off than you need to. I usually jack the manifold up high enough to get my hands on the oil trap box and clean that stuff out of the block and close it back up. The last NA I did took me 1 hour and 56
The wire harness plug is a not so common issue with the MAF plug. Many of them have a zip tie on them.
Do get the PCV kit and replace that ASAP. Most people pull way more off than you need to. I usually jack the manifold up high enough to get my hands on the oil trap box and clean that stuff out of the block and close it back up. The last NA I did took me 1 hour and 56
'95 855 T-5R M, Panther - 22/28 mpg, 546,000 miles
'95 955 T-5R Yellow Wagon, Lemonade, 180,000 miles
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Volvo's of past: '87 740 GLE, '79 262C Bertone, '78 264, 960's, '98 S70 GLT, '95 850 T-5R YellowVolvo Repair Videos
'95 955 T-5R Yellow Wagon, Lemonade, 180,000 miles
--------------------
Volvo's of past: '87 740 GLE, '79 262C Bertone, '78 264, 960's, '98 S70 GLT, '95 850 T-5R YellowVolvo Repair Videos
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