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Old 12-04-2013, 04:49 PM
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MAP sensor vacuum hose?

My 99 250's turbo hasn't been working. We looked under the hood and this little red hose coming off the map sensor had come off. What is it?
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Old 12-04-2013, 04:59 PM
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have a picture?
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Old 12-04-2013, 05:06 PM
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Isn't the red hose for the waste gate?
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Old 12-04-2013, 08:11 PM
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ya the red hose is for the wastegate, thats not the problem.

are the exhaust and intake wheels still intact?

and what do you mean by not boosting?

not achieving high boost or not boosting at all?

if not boosting high enough could be boost leak somewhere.

if not boosting at all, could be ebpv stuck shut, exhaust wheel sheared off wont know until you take it off and look.
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Old 12-05-2013, 12:50 AM
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Quote:
Originally Posted by blue99stroker View Post
ya the red hose is for the wastegate, thats not the problem.

are the exhaust and intake wheels still intact?

and what do you mean by not boosting?

not achieving high boost or not boosting at all?

if not boosting high enough could be boost leak somewhere.

if not boosting at all, could be ebpv stuck shut, exhaust wheel sheared off wont know until you take it off and look.
Wouldn't the red hose cause a leak if it came off? If it's not plugged in it needs to be plugged does it not?
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Old 12-05-2013, 01:59 AM
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Originally Posted by belz View Post
Wouldn't the red hose cause a leak if it came off? If it's not plugged in it needs to be plugged does it not?
Even if it's off it should still build some boost.
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Old 12-06-2013, 01:52 PM
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it would just leak off what the wastegate lets go.
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