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Join Date: Feb 2001
Location: Tampa Bay Area, FL
Posts: 880
Question Surging/Pulsing

I haven't driven the Targa much since buying it, but during my infrequent outings, I've noticed a mild pulsing/surging on acceleration, and while cruising. It's kind of like a mild speeding up and slowing down effect.

I've also noticed that over the past 3 months or so, it's gotten quite a bit "rougher" during a cold start.

DME relay? O2 Sensor? AFM?

Thanks!

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Michael
'98 Boxster in Ocean Jade Metallic
Old 08-26-2003, 01:42 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
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Join Date: Nov 2000
Location: Dallas
Posts: 3,575
Not positive but I think this can be traced to the O2 sensor. I had some other symptoms, erratic idle after warmed up, and was told by the board replace the O2 sensor. I did this and I no longer have the mild surging during steady highway driving. Could have been a coincidence though.
Later

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Buck
'88 Coupe, '87 Cab,
'88 535i sold, '19 GLC 300 DD
Warren Hall, gone but not forgotten
Old 08-26-2003, 01:48 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
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