JOHN_CENA Posted July 19, 2013 Report Share Posted July 19, 2013 Got a question about my 850r. I'm having an issue when the car is warmed up. I manual swapped the car and put M4.4 with an S70 T5M tune on it. This problem also occured when the car was still an automatic, when in neutral or park. The idle fluctuates between 1100-1600 RPMs. I changed the MAF sensor with a known working one, and have changed the Idle air control valve as well. Still does it. I just ordered a snaab intake pipe incase mine is cracked / leaking. I get a P0505 code every other day, idle air control system. Any other ideas as to what the problem may be? Link to comment Share on other sites More sharing options...
Yea-but... Posted July 19, 2013 Report Share Posted July 19, 2013 Leak at the vacuum tree? Check all the everything coming off the intake manifold. Link to comment Share on other sites More sharing options...
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