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R154 tranny/ issues

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#1 Guest_TurboSnail_*

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Posted 09 March 2012 - 08:55 AM

my r154 tranny wont let me downshift to 2nd gear, is dis "normal"? or is there some kind of speed lockout.....idk smh

#2 Guest_DuaxMachine_*

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Posted 09 March 2012 - 09:02 AM

Not sure what the fuck 'dis' means, but yes, electronic speed sensors in the tail shaft feed the R154 trans ECU, and prevents down shifting.

XM makes a kit that allows the override of this feature, and will let you shift right from 5th to 1st if you want to.
But beware, it also eliminates the speed limiter, and will allow the car to go over the factory 120 mph speed cut.

#3 bradlee



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Posted 09 March 2012 - 10:49 AM

check TC.net, they have a group buy going on.



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#4 JoeTheHook



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Posted 10 March 2012 - 08:02 AM

Its broken throw it out
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#5 Guest_DuaxMachine_*

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Posted 10 March 2012 - 08:54 AM

But shouldn't he be getting 'code 42' if the throw it out failed ?

#6 Guest_Piner_*

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Posted 10 March 2012 - 03:39 PM

^ No code 42 is for when your inputshaft bearings exceed tolerences, commonly mistaken for a bad throw out bearing. Your best bet is to clear the code and just hope it doesn't come back

#7 Guest_DuaxMachine_*

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Posted 10 March 2012 - 05:18 PM

Oh, OK Piner......
I guess I will have to read up on that in the 'illiterate owners manual'.

Found it on line here: http://eserver.org/c...ings/kozol.html

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