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1991 944 S2 Starting/idle


Vehicle Information: Model(924/944/968): 944 S2; Year: 1991; Body Type: Coupe; Total Mileage: 153200;

I am having a couple of problems. Fisrt, when I start my car (not every time, but every 15-20 starts) the idle is very rough, you can see the hood shake, the RPM gauge goes up and down. I shut the engine off and wait a minute and it starts up fine.The second is in general the car idles rough when I am at a stop light (just slightly(flutters) , not as described above)I thought of the motor mounts, but, it might be from the problem above also??I have read some of the previous postings. I am not sure if this be a Idle control valve, O2 sensor, motor motor mounts, or a combination. I am not a car expert, but I have been learning the maintainance on my car and am willing to attempt fixing it myself. I drive about 100 miles a week on it, most of which is around town. How major of a problem is this, should I stop driving the car until it is fixed?

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