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mhelt mhelt is offline
Registered User
Join Date: Jun 2004
Location: Budapest, Hungary, Europe
Posts: 5
vacuum help need


I need your help to fix some problems. The car is stock 86' US. 37k miles.
Looks perfect.
Idle and low rpm a little rough, hesitating, not too serious but a little.
Brake booster works cca 30%.
Tried to find vacuum leak.
I've checked brake lines, intercooler o ring, sprayed a lot to find the leak, but
nothing. Suddenly after replace the coil the car was perfect, smooth idle, easy revs, normal brake assist. But morning next day, all came back.

Today local shop made some dyno, and I am totally confused.

Pls. some advice.

Here in Hungary almost impossible to find good mechanic or shop(for Porsche) , so its usually DIY project with friends.

Old 06-28-2010, 05:45 AM
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