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2002 b4

engine surges

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#1 b4subaru

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Posted 21 January 2016 - 09:11 PM

Not sure where to start as I am only new to the scene.i just got a 2002 b4 liberty which I have wanted for a long.the problem is my lack of engine knowlege but I am a quick learner so would really appreciate any help so I can work on the car my self and save money ..the car is running rough the problem is when its sitting on about 3000rpm it seems to surge up and down and feels like its about to stall when coming to a stop or idle.it dsnt seem to have much boost at all and as its hard for me because I have not driven turbo cars before.however I have been in plenty of them and from my experince I can feel its not running as it should.any help or suggestions to help me get this car into the 200kw atw it should be would be much appreciated ..

#2 Jimbo

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Posted 21 January 2016 - 10:30 PM

Perhaps have a read through the huge "Your Guide To Twin Turbo" thread, found in the Twin Turbo forum section. Also, it would benefit you to start a thread in said section, it'll get lost here.

Start a new topic there and the forum gurus will give you a hand. 


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#3 Guest_KONG_*

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Posted 22 January 2016 - 11:03 AM

Hi,

Firstly, grab a large flat blade screwdriver and check how tight all the turbo related hose clamps are.
Throttle body x 2, from turbos to intercooler x 4,
1 from the inlet to the front of each of the turbos.

If they are suspect you should replace with new ones.

These clamps need to be tight.

Do you have a boost guage?

#4 b4subaru

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Posted 22 January 2016 - 02:40 PM

Thanks for your advice. Will give it ago I will get a service done next week and go from there. Once again thanks for any advice pretty sure I will have plenty more questions to come lol. It's going to be a long process so will so all the help I can get. Will let you know the out come

#5 b4subaru

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Posted 25 January 2016 - 09:47 PM

Don't have a boost gauge should I get a cat back exhaust or a turbo back before I get it tuned and then the suspension .. Where should I start first what's the best direction ..




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