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'83 931 idles like a dog when cold - It's fixed!
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Johann  



Joined: 07 Aug 2016
Posts: 240
Location: Netherlands

PostPosted: Thu Aug 31, 2017 2:16 am    Post subject: Reply with quote

Not yet, but it is in the planning I am having a custom primary silencer delete pipe made up with a socket for an oxygen sensor.
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Dutch924-racer  



Joined: 23 Jul 2007
Posts: 1076
Location: The Netherlands

PostPosted: Fri Sep 01, 2017 3:44 am    Post subject: Reply with quote

Controlpressure cold is 2.0--2.8 (depending on S1/S2)

So I think you injectors are fine
_________________
937 trackday car
Series 2 engine
951S turbo and intercooler
Fast road camshaft
Forge recirculation valve + boost controller
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Johann  



Joined: 07 Aug 2016
Posts: 240
Location: Netherlands

PostPosted: Sun Sep 03, 2017 6:39 pm    Post subject: Reply with quote

Thanks for the info Dutch924-racer

She is alive

http://www.youtube.com/embed/_JAr97Z_2ig
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Johann  



Joined: 07 Aug 2016
Posts: 240
Location: Netherlands

PostPosted: Wed Sep 13, 2017 6:23 pm    Post subject: Reply with quote

And now, after fixing many niggles, she idles like a champ. Hot and Cold

To get here I did the following:
- New Coil
- Fixed the engine wiring harness going to AAV and WUR
- Made the idle mixture a lot richer
- Cleaned the connection to the Idle stabilizer
- Ditched my CO meter and adjusted the A/F Ratio with my ears and nose.

http://www.youtube.com/watch?v=ua5snsA5Y3Y
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bear924  



Joined: 26 Jul 2005
Posts: 95
Location: South West Queensland, Australia

PostPosted: Sun Oct 08, 2017 10:11 pm    Post subject: Reply with quote

I'm currently running my 924T rick due to a cold start issue as well. What I've discovered is that the oil canister between the turbo and block is causing a vacuum leak when cold.

I'm also getting really poor vacuum reading (ie.. not enough vacuum) which suggests a largish vacuum leak. =Your symptoms sound similar to mine, so I thought I'd mention my findings.
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