what can cause limp mode?
12-22-06, 02:40 PM
#1
what can cause limp mode?
what ecu codes can make the ECU go into limp mode? i had a MOP code (26) and replaced it and got rid of the code, but the ecu is still in limp mode.
i have the current codes: 5 (knock sensor, 42 (turbo pre control), 43 (wastegate control) ...
i have the current codes: 5 (knock sensor, 42 (turbo pre control), 43 (wastegate control) ...
12-22-06, 05:15 PM
#3
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I think the OMP codes can cause your car to go into limp mode. If you've fixed it, you should be able to reset the ECU to get out of it No idea if the knock sensor will keep you in limp mode...
12-22-06, 06:17 PM
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my ex- girl caused me to go into limp mode...lol!
but on the serious side, my faulty OMP caused it. even after i had that fix i kept getting a code 3? but i changed my ecu and bam! problem fixed.
but on the serious side, my faulty OMP caused it. even after i had that fix i kept getting a code 3? but i changed my ecu and bam! problem fixed.
12-22-06, 07:17 PM
#6
Originally Posted by rynberg
A faulty knock sensor will definitely kick in the limp home mode.
are you sure about that? i've had a bad knock sensor in my car for months and never got limp mode because of it. i always got the code 5 ecu code, but no limp mode.
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12-22-06, 09:33 PM
#9
Warming the planet.
The knock sensor will not put the ecu into "limp" mode, but it does retard the timing to a set point. The only thing that you will noitce is a slight lack power, the car will run fine other wise.
Take a look at the "Service Points" in the FSM
Take a look at the "Service Points" in the FSM
12-23-06, 10:22 AM
#12
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Originally Posted by jacobcartmill
thank you kevin. now i'm wondering why it could be causing limp mode now and it didnt in the past... but hey whatever
i'll replace the knock sensor tomorrow and report back.
i'll replace the knock sensor tomorrow and report back.
Oh and if you need good knock sensor let me know
01-25-07, 01:11 PM
#19
i got a new MOP from a buddy for free.
as for the "limp mode" it wasnt limp mode -i had the leading CAS wires backwards so the ecu was getting the wrong ignition signal (making a rev limiter around 3200) so i swapped the wires and it has been running perfectly.
but yes, a bad MOP will cause the standard limp mode.
as for the "limp mode" it wasnt limp mode -i had the leading CAS wires backwards so the ecu was getting the wrong ignition signal (making a rev limiter around 3200) so i swapped the wires and it has been running perfectly.
but yes, a bad MOP will cause the standard limp mode.
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