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Do the following:
When the car goes into Limp mode. Shut it off. Turn it back on, but instead of D, drive it in 3 for a while. If the problem does not happen, most likely the problem is the neutral safety switch. Another could be the brake light switch. I do not know if your car has one, but the OVP relay causes the same problems. Those are the 3 cheapest to replace components that are known to cause limp home with ASR. I am not surprised the problem came back, as nothing was done to fix it in the first place.
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1999 Porsche 996 Carrera Convertible 1994 420E - SOLD 1986 300E - SOLD, what a car 609 Certified Last edited by pesuazo; 02-23-2009 at 02:50 PM. |
#2
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oh I believe that the limp mode came on while I was driving in 3. I took the advice and was mostly driving in 3 the past few days.
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#3
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Go GETTHE CODES.
When you go to limp, there is a code stored...simple. Intermittant codes clear if they do not repeat...so you have to get it in situ...that's all. You have a computer monitoring for faults and it is there to tell you what it has detected, but you have to ask it... and it does not Guess...... You can guess and we can guess, but the DM does not..it reports what it has detected as not normal. ie, a Fault. There is also a often over-looked ASR limp trigger if the tire sizing or inflation pressures are not equal...I always check that first b/c the module makes a 4 wheel circumference comparison .. [ rolling circumference is proportional to individual wheel speed]
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A Dalton Last edited by Arthur Dalton; 02-23-2009 at 03:32 PM. |
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__________________
1999 Porsche 996 Carrera Convertible 1994 420E - SOLD 1986 300E - SOLD, what a car 609 Certified |
#5
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These Flash codes should be available from pin #7 of the 38 Pin Diagnostic Interface Connector...and they are ASR related Faults.
FAULT CODE TABLE DTC Readout Possible Cause of Failure 1 No fault found 2 EA/CC/ISC control module (N4/1) or Safety contact switch (M16/1s1) or Stop lamp switch or Cruise control switch or Actual value potentiometer or Starter lock-out/back-up lamp switch or engine speed signal or vehicle speed signal or closed throttle position switch or safety relay in EA/CC/ISC control module 3 Right EA/CC/ISC actuator (left cylinder bank) (M16/1) 4 Cruise control switch (S40) 5 Stop lamp switch (S9/1) 6 Starter lock-out/backup lamp switch 7 CAN data bus signal from EA/CC/ISC, ABS/ASR, HFM-SFI or LH-SFI (right or left) control module faulty. 8 Left front axle vehicle speed sensor from ABS/ASR control module 9 Left rear axle vehicle speed sensor from ABS/ASR control module or in 124 chassis Hall-effect speed sensor. 10 Engine speed signal (TN) from base module (LH-SFI) or engine control module (HFMSFI) 11 Closed throttle recognition signal to engine control module (HFM-SFI or Left LH-SFI) Fuel safety shut-off to engine control module (HFM-SFI or left or right LH-SFI) 12 EA/CC/ISC control module voltage supply 13 Left EA/CC/ISC actuator (right cylinder bank) or actual value potentiometer (M16/4r1 or M16/4r2) or actuator motor (M16/4m1)or magnetic clutch (M16/4k1). 14 Closed throttle position contact switch 15 CAN data exchange with ABS/ASR control module illogical
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A Dalton |
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