I bought a porsche 944 1986 and whenever I drove on the freeway and slow down before the exit the idle keeps going up and down. It's like the revolution goes up and down until I shift it in any gear.

5

Asked by Richie Jan 02, 2015 at 01:46 PM about the 1986 Porsche 944 STD Hatchback

Question type: Maintenance & Repair

1 Answer

46,415

Sounds like a bad air idle control valve. https://www.youtube.com/watch?v=30Ctw8BoNog

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