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Pending p0505 IAC code 97 GLT..

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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lk250f
Posts: 39
Joined: 10 September 2012
Year and Model: 1995 850
Location: PA

Pending p0505 IAC code 97 GLT..

Post by lk250f »

I have a pending p0505 code. Idle air circuit code. I did my pcv. Everything connected right. I also did a snabb intake pipe as well as a NA Throttle Body and 960 plate. I have not adjusted the idle on it or anything though. On my boost gauge I have anywhere from 18-20 inhg at idle. About 22-24 when decel on highway. And around 16 when in drive and stopped. Doesn't seem like a leak. Runs good. Guess I could check around with some carb cleaner. I cleaned my IACV a little bit but think I didn't get all the crud out. Idle is about 950-1000. Should it be lower around 750-800? I guess I could clean the contacts on the connectors as well. It drives great now but I'm thinking maybe the TB Idle screw needs to be adjusted. Any input? Please if you need more info you can ask. Thank you!

noev70t5
Posts: 48
Joined: 11 March 2016
Year and Model: 1995 850 TURBO
Location: Dallas

Post by noev70t5 »

Normal Idle on my 98 v70 t5 is 900. 750-800 is too low for my model and has a slight roughness to it chillin there (Im having IAC issue and currently have my IAC disconnected) before it faulted it sat at 900
2002 s60 Base - 215k - KIA [08-2014]
2000 s70 Base - 170k - Traded in [2015-16]
1998 v70 t5 - 232k - KIA [2016-2018]
2000 s70 Base - 180K KIA [2018-2018]
1995 850 TURBO - 77K [2019-]

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