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My friend has a 2004 Mk4 GTI, He has full exhaust, Short ram intake, and TEIN Suspension, and ECU Upgrade. My question is, We just installed an EIP Front Mount Intercooler with blow off valve. we disconnected the battery and now since we hooked everything back up he is only boosting at <5 Bar, He was boosting at 1.5 bar. (17-21 PSI). The computer reset, his windows would not go auto up and down, but then started working after 10 minutes. The boost is still very low and i was wondering if any of you know what the problem is, have any suggestions, or what to do with the computer? Thank you very much.
 

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there could be a boost leak in the bov check it out you should use a vag-com to scan your can to see what problems you may have that you can detect. Alos the FMIC pipes can be loose or the clamps may not be tight enough
 

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ammo420muns said:
My friend has a 2004 Mk4 GTI, He has full exhaust, Short ram intake, and TEIN Suspension, and ECU Upgrade. My question is, We just installed an EIP Front Mount Intercooler with blow off valve. we disconnected the battery and now since we hooked everything back up he is only boosting at <5 Bar, He was boosting at 1.5 bar. (17-21 PSI). The computer reset, his windows would not go auto up and down, but then started working after 10 minutes. The boost is still very low and i was wondering if any of you know what the problem is, have any suggestions, or what to do with the computer? Thank you very much.
you reset the ECU by disconnecting the battery, thats your problem, you couldve reset the setting on the ECU upgrade.

also if he is boosting less then .5bar then theres probably a boost leak somewhere. also dont forget that after you add a mad the ECU has to relearn the adjustments of the new amount of air coming in through the MAF sensor. so there is an adjustment period.

if the car has no power at all and tends to stutter and turn off on you thats a definite boost leak. i had that happen a few weeks ago to my friends GLI. i was so lazy to take off the bumper i just cut my hands, im an idiot.
 

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I'm telling you, those Mechanix gloves are worth their weight in gold.
 

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Check the BOV connection and make sure you have an adapter kit to recycle the air. If you don't have this the engine will probably run stag without the turbo at all and sometimes even cut out.
 

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Funny I just got my Neuspeed FMIC installed and now i'm having the same problem. I'm sure it's either the va*** hose, the bov, or the clamps not being tight enough. Bummer though for sure.
 

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Funny I just got my Neuspeed FMIC installed and now i'm having the same problem. I'm sure it's either the va*** hose, the bov, or the clamps not being tight enough. Bummer though for sure.
Did you reinstall the MAF sensor? I had this problem until I hooked my MAF sensor back up on the intake side. If you still have the stock intercooler, look at the top, the plug in clip and sensor need to be tapped into the new piping so that it can properly read the boost pressure going into the intake side and pull you out of limp mode. If you have any questions feel free to ask. I can even show you pics if you need to see how I mounted mine back in.
 
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