low boost problem..holds vacuum though..help
06-10-2004, 09:42 AM
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low boost problem..holds vacuum though..help
GIAC chipped with VDO gauge
used to boost to 15 psi, now only to 5 psi
reset ECU and did TBA..no change..that should take it out of 'limp mode' if that was the problem, correct?
no CEL on
If gauge reads 'normal' vacuum of 22-27 " Hg, does that indicate that there shouldn't be a boost leak in hoses,etc?and more that it is a turbo malfunction? like N75 or wastegate type issue?
any previous experiences would be great
TIA
used to boost to 15 psi, now only to 5 psi
reset ECU and did TBA..no change..that should take it out of 'limp mode' if that was the problem, correct?
no CEL on
If gauge reads 'normal' vacuum of 22-27 " Hg, does that indicate that there shouldn't be a boost leak in hoses,etc?and more that it is a turbo malfunction? like N75 or wastegate type issue?
any previous experiences would be great
TIA
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