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91 Volvo 240 Idle Trouble and Running Rich

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Old Nov 3, 2022 | 05:31 PM
  #1  
BiggieBubs's Avatar
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From: Jacksonville Beach, FL
Default 91 Volvo 240 Idle Trouble and Running Rich

I have an attached video so you guys can hear the problem but the car is running rich and having problems in idle. It'll just die on me in idle but if I am driving it it's ok. Any ideas on what I can do ? Thank you.

 
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Old Nov 3, 2022 | 09:40 PM
  #2  
mt6127's Avatar
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From: Burlington, VT
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What have you checked so far? Have you looked for any CEL fault codes?

https://www.pornhub.com/view_video.p...h62c969b9cbc49

Have you checked for air intake leaks (vacuum lines, around the injectors, intake airboots etc)? Spray around with some carb cleaner and see if anything sucks in...

Have you checked if your model has an idle air valve - if so, see if its stuck closed (ie its like a choke to enrich the mixture when the engine is cold.

Have you checked the engine coolant temp sensor (google for a resistance chart - this is what tells the computer when the engine is warm and to lean out the mix. This may be a good place to start...
 
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