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Problem with evo, any ideas?

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Old May 17, 2009 | 09:53 AM
  #1  
Arkitek's Avatar
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Problem with evo, any ideas?

So after the track this past friday, I drove the car today and when i went wot, I felt sputtering and looked at my o2 wideband and it said 10.0! i dont know why it's running so low now on wot. Another thing i noticed is that i can hear my fuel pump a lot more than usual now. I did this loud noise also when i was'nt tuned...but the nosie seemed to have left when i tuned the car. But now the whine is back and the car seems to go into 10.5 and less when i go above 10 psi , I think im still on the stock fuel pump (i know, FAIL) but i was wondering if maybe it was just going out on me or something?
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Old May 17, 2009 | 09:58 AM
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From: El paso, Texas
i think you have a boost leak.
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Old May 17, 2009 | 10:01 AM
  #3  
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Originally Posted by def1
i think you have a boost leak.
i've thought this might be it too...im been inspecting all my vac lines and piping for it too...i need to run a proper leak-down test
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Old May 17, 2009 | 01:13 PM
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From: Mexico
Boost leak seems to be the problem
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Old May 17, 2009 | 08:37 PM
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we seem decently sure that it's prob my spark plugs not gapped right for the meth
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Old May 18, 2009 | 03:13 AM
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From: Washington State
Boostzorz. Leakzorz.

Time to invest in some T-Clamps I presume?

I suggest this.

Evo 8 Evo T-Bolt Set for $30 bucks. (Even though it says 8, works for 9 too, because I use them.)

http://www.siliconeintakes.com/produ...34977f4aa077b0
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Old May 20, 2009 | 12:22 PM
  #7  
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do a boost leak test that may solve your problem.
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