Greetings all,

I am the proud owner of a 93 CSE turbo automatic, blessed with TCS of course. Mostly I have no problems with the system, but thought perhaps some of you might have some anecdotal ideas on why I'm getting my particular occasional symptoms, which are:

Usually on highway entrance ramps, if I give the car just enough gas, I will wind up in limp home mode only AFTER reaching cruising speed. I accelerate up to speed, say 70 mph or so, and the car gives a bit of a stumble, then enters limp home mode. Seemingly this occurs if I've pressed the pedal more than halfway to the floor. Since I rarely if ever floor the car in the course of my driving, it's hard to say whether pedal position is always a precursor to limp home mode. Perhaps 50% of the time if I do floor the car to squirt past someone in local driving I will not get limp home mode; it's also not often that I'm obliged to give the car much gas in order to merge onto the highways.

The ISAT returns the "P0120 -- throttle position incorrect" code, and another intermittent code that seems to indicate the throttle pedal potentiometer. A Saab professional suggested I replace the red/white check valve, which I did, and the safety valve shows the proper resistances. All hoses are new, I do have the old style TB still.

Perhaps someone out there will have bells go off in his or her head as to how to solve this issue. Place index finger on end of nose, repeatedly clear throat, bark like dog?

This car's a bit of a beater and the problem is more annoying than worrisome, but I would sure like to be able to enjoy the monster power of this car in a carefree fashion. Suggestions welcome!

posted by 24.151.52...

• Question for TCS doctorates..., David Ingram, Wed, 3 Dec 2003 06:05:06 <-- Viewing This Message
  • Can't find procedure anywhere..., David Ingram, Wed, 3 Dec 2003 18:50:25
  • Exact same as mine, SaabKen in Vancouver, Wed, 3 Dec 2003 16:26:32
    • I meant I've NOT had a single LHM since new TB nm, SaabKen in Vancouver, Wed, 3 Dec 2003 16:28:20
  • Replace throttle boy and pedal potentiometer/switch, SWEDECAR , Wed, 3 Dec 2003 06:59:59
    • Got TCS kicking in at low speed, goes away at higher, Daren, Wed, 3 Dec 2003 07:33:00
      • It's two different pedal switches. Stickshift/auto, SWEDECAR , Wed, 3 Dec 2003 09:19:28
        • Anders, what do you think of..., Ben, Wed, 3 Dec 2003 12:22:56
          • I don't even know whats really goes wrong with the old, SWEDECAR , Wed, 3 Dec 2003 20:35:58
            • Your comments may be true..., Ben, Wed, 3 Dec 2003 20:55:03
        • Thanks guys...I was afraid of that.., David Ingram, Wed, 3 Dec 2003 09:43:29
          • How Difficult to Replace the Pedal Potentiometer Switch, Peter Ingram, Wed, 3 Dec 2003 14:07:38
            • It's a little bit of a pain to get to the switch and, SWEDECAR , Wed, 3 Dec 2003 20:26:25
              • Re: It's a little bit of a pain to get to the switch and, Peter Ingram, Thu, 4 Dec 2003 08:29:56

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