25-07-2013, 05:09 PM
(This post was last modified: 25-07-2013, 05:11 PM by DarkInferno.)
First principals.
Right the engine is acting like an air pump.... sucking the air out of the pipe faster then its going in. creating a vacuum in the pipe.
so we have, before the pipe in question, a fairly big blockage.
Diagnosis...
Disconnect all parts downstream of the crushing in pipe and reattach one at a time until the blockage is found.
Pipe -> Intercooler -> Pipe -> Turbo -> Filter.
so try it with just the intercooler.... the intercooler and its pipe... the intercooler the pipe and turbo.... then add on the filter...
You will find the blockage.
Its unlikely to be the intercooler as you say you have replaced it to no avail. so it is either the pipe (unlikely), the turbo (possible), or the filter (likely). You say you have checked the filter and pipe (on another car?) and they have no issues, the only part that remains unchecked is the turbo.
It producing pressure is largely irrelevant, its flow rate you are lacking not pressure.
on a side note I'd still systematically check each component.
heh... started writing that hours ago but been busy.... just finished it.
Thought it would be the filter.
Right the engine is acting like an air pump.... sucking the air out of the pipe faster then its going in. creating a vacuum in the pipe.
so we have, before the pipe in question, a fairly big blockage.
Diagnosis...
Disconnect all parts downstream of the crushing in pipe and reattach one at a time until the blockage is found.
Pipe -> Intercooler -> Pipe -> Turbo -> Filter.
so try it with just the intercooler.... the intercooler and its pipe... the intercooler the pipe and turbo.... then add on the filter...
You will find the blockage.
Its unlikely to be the intercooler as you say you have replaced it to no avail. so it is either the pipe (unlikely), the turbo (possible), or the filter (likely). You say you have checked the filter and pipe (on another car?) and they have no issues, the only part that remains unchecked is the turbo.
It producing pressure is largely irrelevant, its flow rate you are lacking not pressure.
on a side note I'd still systematically check each component.
heh... started writing that hours ago but been busy.... just finished it.
Thought it would be the filter.