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944s2 hesitation

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Old 09-22-2017, 03:54 PM
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apo1966
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Default 944s2 hesitation

hi i have a 944S2 from 1990, 95000km, great condition. the car idles perfectly, but when warmed up, it hesitates to accelerate between 1000-2000rpm. i have changed the TPS, the DME. filter is new, plugs , cables, rotor new. any suggestion much appreciated
Old 09-22-2017, 04:26 PM
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Van
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I bet the wiper contacts on the AFM are worn out.
Old 09-22-2017, 06:20 PM
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jhowell371
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2nd on the AFM.
Old 09-22-2017, 06:36 PM
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SloMo228
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3rd. I had similar symptoms on my 944S and they went away after I repositioned the AFM wiper arm to ride on a slightly different track. Of course, I also replaced all the vacuum lines at the same time so that could have been part of it too.



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