Question about 2008 Harley Davidson FLHTCU Ultra Classic Electra Glide

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Harley motorcycle While driving the throttle became unresponsive was able to get home due to limp home mode

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It must be a P1511 which is a throttle actuator limited power management mode which mode allows traffic speed for limp home mode. It limits driveabilty other than that. It is caused by a failure of the TCA withou TGS, MAP or airflow faults. The TCA is de-energized and the throttle plate returns to its idle detent position.The ECM monitors the operation of the TGS and adjusts the spark advance and cylinder shutoff/rev limiting, allowing the vehicle to limp home or to a service facility.

It can be an ECM failure

May 18, 2014 | Harley Davidson FLHX Street Glide...

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Harley trouble codes

p511 = Throttle actuator control power management failure of throttle control actuator

p2107 = EFI Module Processor Internal Fault

May 01, 2014 | 2009 Harley Davidson FLHRC Road King...

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What to do when 2012 harley ultra goes into limp mode

Get it home and see what codes are set.

Throttle by Wire failures can sometimes be (P1511/P2135) fixed by removing, cleaning, adding dielectric grease to connector at induction module.

Apr 27, 2014 | Harley Davidson FLHTCUI Electra Glide...

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Shuts down

What codes are set. Do you have limp home mode???

Apr 17, 2014 | Harley Davidson FLHTCUI Electra Glide...

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