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2005 Subaru Legacy Support Question

2005 Subaru Legacy Support Question

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Question posted by Noble on December 4th, 2010

Legacy Won't Rev Over 2000 Revs After Jump Start

2004 Legacy Turbo was started using jumper leads now will not rev past 2000 revs

Requests for more information

Request from bobblehead199 on December 9th, 2010 11:06 AM
Are there any check engine lights on? Does the cruise control flash ever?

Current Answers

Answer #1: Posted by Noble on December 12th, 2010 6:12 PM
This answer was accepted by the poster of the original question.
Noble

Member since:
December 4th, 2010

Points: 50
1,100
points
Problem is now resolved. Apparently when jump starting with jumper leads it is important to let the engine of the 'host' car idle with the jumper leads connected for 10 to 15 minutes before attempting to start the 'subject' vehicle.
Reason is that if the car is started with the battery below 6 volts of chanrge then the ECU trips into safe mode which limits revs to below 2000. Service technician was able to reboot the ECU and the engine ran as normal.

Answer #2: Posted by bobblehead199 on December 9th, 2010 1:59 PM
bobblehead199

Member since:
December 9th, 2010

Points: 150
100
points
I don't know if this is it for sure or not, but your car could be in "limp" mode. You'd have to take it to a dealer and have them reflash your ecu most likely.

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Owner's Manual - Page 5

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Owner's Manual - Page 9

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Owner's Manual - Page 16

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Owner's Manual - Page 29

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Owner's Manual - Page 47

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Owner's Manual - Page 106

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Owner's Manual - Page 129

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Owner's Manual - Page 200

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Owner's Manual - Page 363

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Owner's Manual - Page 371

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Owner's Manual - Page 380

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Owner's Manual - Page 395

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Owner's Manual - Page 425

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Owner's Manual - Page 456

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Owner's Manual - Page 472

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Owner's Manual - Page 473

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Owner's Manual - Page 617

... Selector lever ...7-17, 7-26 Shift lock release ...7-24, 7-35 Temperature warning light (AT OIL TEMP) .. 3-27 Automatic/Emergency Locking Retractor (A/ELR) ...1-18 B Battery ...11-67 Jump starting ...9-17 Replacement (Remote keyless entry system) ...2-16 Brake Booster ...11-44 Fluid ...11-42 Pad and lining ...11-47 Pedal ...11-45 Brake pedal Free...
Owner's Manual - Page 620

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