Question about 1999 Subaru Legacy

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My 99 b4 legacy is misfiring and boost spikes when i plant my foot,its completely standard, what could be the cause of this? also my fuel gauge does not work.

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Posted on Jan 02, 2017

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SOURCE: 1994 subaru legacy

Try Upper engine cleaner from Surabu first..............if that doen't sort it try cleaning the IACV (idle air control valve) with carby cleaner and/or meths

Posted on Nov 07, 2008

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  • 51 Answers

SOURCE: boost spiking/ over boosting

replace the wastegate vacum lines or wastegate acuator. if they leak it raises the boost. Let me know if its not that.

Posted on Jan 12, 2009

  • 41 Answers

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Importcarparts.com

Posted on Jul 06, 2009

tunde007
  • 2382 Answers

SOURCE: my 99 b4 is not

Hi, first of all, take your car to any auto zone place or mechanic and they can check your computer for trouble codes to see why it isn't accelerating. It sounds to me like something is wrong with your Throttle Position Sensor, it tells the computer how far your pushing down the throttle to allow the proper ammount of fuel to be injected into the engine, it may have a bad spot in the sensor so when you push the throttle down that far, it's malfunctioning and the computer doesn't know to inject more fuel into the engine to accelerate faster. When this sensor fails, it won't accelerate fast enough and then it should normally store a trouble code in the car CPU....

Concerning the fuel gauge not working, it's either you have a float or sender problem which is quite easy to detect and fix. The fuel pump sender are under the back seat of the car. So you can check it out yourself to find the cause of the problem...

Posted on Oct 04, 2010

dttech
  • 4803 Answers

SOURCE: subaru legacy b4 fuel gauge read empty when

You have a fuel level sending unit that is not working properly. It is located inside the fuel tank.

Also, when you ask for help with your vehicle it would be very helpful if you could mention WHICH "Legacy" we are talking about. It seems that Subaru got "stuck" on the Legacy name - there are actally 9 choices for "Legacy" just for your model year. (see list below) There are also 2 different engines available for that year a 2.2L and a 2.5L.

1999 Subaru Legacy

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Posted on Oct 10, 2011

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Subaru legacy b4 fuel gauge read empty when full?gauges jump about too


You have a fuel level sending unit that is not working properly. It is located inside the fuel tank.

Also, when you ask for help with your vehicle it would be very helpful if you could mention WHICH "Legacy" we are talking about. It seems that Subaru got "stuck" on the Legacy name - there are actally 9 choices for "Legacy" just for your model year. (see list below) There are also 2 different engines available for that year a 2.2L and a 2.5L.

1999 Subaru Legacy

10_10_2011_12_33_07_pm.jpg

Oct 10, 2011 | 1999 Subaru Legacy

1 Answer

I have subaru b4 legacy 1999 with twin turbo from Japan and I would like to increase the torque and speed. Where do I start.


hi i would invest in an electronic boost controller, they remove the dead spot in the revs before the big turbo winds in, they are worth a few hundred dollars but are well worth the money. You also have the option of turning up the boost safely a few psi with these but you will love the difference without the dead spot it will seem like a new car to drive. If you do that and want more still i would get a turbo upgrade, ecu upgrade, fuel pump upgrade etc do all that you can before going with the expensive motor rebuild

Apr 16, 2011 | 1999 Subaru Legacy

1 Answer

99 subaru legacy engine temp gauge overheating but no heat in car


sounds like your coolant level is low? this causes a air pocket in system and hot coolant does not reach the heater core in side of car to give you heat. This can also cause engine to run to hot.

Feb 20, 2011 | 1999 Subaru Legacy

1 Answer

All 4 cylinders are misfiring according to codes


the screens on the ends of the fuel injectors is probably obstructed with fuel tank rust or ****

Jan 20, 2010 | 1997 Subaru Legacy

2 Answers

My sub


Importcarparts.com

Jun 29, 2009 | 1999 Subaru Legacy

1 Answer

1994 subaru legacy


Try Upper engine cleaner from Surabu first..............if that doen't sort it try cleaning the IACV (idle air control valve) with carby cleaner and/or meths

Oct 12, 2008 | 1994 Subaru Legacy Outdoor

2 Answers

Boost spiking/ over boosting


replace the wastegate vacum lines or wastegate acuator. if they leak it raises the boost. Let me know if its not that.

Oct 11, 2008 | 1994 Subaru Legacy Outdoor

2 Answers

Misfire code


Many things can cause a misfire,but basic mechanical checks or tests can be made relatively inexpensively.Compression testing the cylinders with a compression gauge will verify the general condition of the engine's piston rings and valve sealing capabilities.A leakdown test is similar to a compression check except that a leak down test is directed more towards verifying specifically the valve's sealing capabilities.A valve can burn or a bad seal occur between valve and seat...causing a misfire.Valves and piston rings are mechanical in nature,but there are many other possible causes.Vacuum leak,ignition problems,fuel problems,sensor problem,etc etc.Good luck.

Sep 10, 2008 | 1997 Subaru Legacy

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