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need some diagnostic advise (UPDATED)

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Old Jun 28, 2005 | 12:04 AM
  #1  
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Default need some diagnostic advise (UPDATED)

i recently installed a new K04 turbo, the car ran good if not great on the K03 software for a week.


i upgraded to the K04 software and installed the AWE 5.0 bar fpr and it ran good for 3 days.


after that i noticed a lack of power but boost was spiking into the 25 psi range and still felt weak. then today i boost up to 15-17 psi and hold there.


i checked vacuum and boost hoses, swapped in the stock N75 valve, vacuum tested and inspected the 710N DV.


is this something that someone has come across before? i have a generic vag cable but no laptop to connect.

any help or suggestions would be great

----------------------------------------------------------------------------------------------------------------------------------------

a big thanks to Ron @ Dubwerks Libertyville.

come to find out it was the sneaky little coolant temp sensor

aparently this sensor isnt the one that reports to your coolant gauge on your dash, but to your ecu for proper tuning

I'm lovin the K04 again

next upgrade is the DV. that 710N isnt strong enough for the CFM the the K04 produces.
i can hear it screeching although the diaphram isnt torn.




 
Old Jun 28, 2005 | 01:38 AM
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Default RE: need some diagnostic advise

black u got the software for the k04? did u runit yet? dose it shudder at all
 
Old Jun 28, 2005 | 01:49 AM
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Default RE: need some diagnostic advise

yes, i got the K04 software last thursday


yes i did notice a shutter when accel.

do you have some answers?
 
Old Jun 28, 2005 | 02:34 AM
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no help man?
 
Old Jun 28, 2005 | 02:51 AM
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Default RE: need some diagnostic advise

if it shutters at around 10 psi or so its the plugs, what ones r u runnin
 
Old Jun 28, 2005 | 12:07 PM
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Default RE: need some diagnostic advise

it was shuttering, now it doesnt, it feels like limp mode, slow factory like accel. but boost up to 15 psi
 
Old Jun 28, 2005 | 12:47 PM
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Default RE: need some diagnostic advise

im stumped, no cel?
 
Old Jun 28, 2005 | 01:10 PM
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no cel, i am running the bkr7e? plugs gapped at .28
 
Old Jun 28, 2005 | 04:37 PM
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um????????????? what diverter valve u running
 
Old Jun 28, 2005 | 05:14 PM
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the 710N, i pulled it out, tested and inspected it. and even replaced it with a new one knowing it was good.


the quick jump in boost is gone, slow factory like accel.
 



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