Quote:
Originally Posted by Bigborebagger
Thanks GSXR. That's what I was figuring but something is odd here. The vent line pull air in easily and with it connected both the EGR and Wastegate don't seem to function at all. With the vent line plugged both the EGR and Wastegate pull into full open position at idle and choke the engine out.
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This may be normal. The vent line is supposed to always be open, to allow air to be pulled through the vac pump. If you block it, the system would build vacuum and actuate vacuum consumers, like the EGR. Note that the vac wastegate is fully open (zero boost) with no vacuum, and when vacuum is applied it closes (full boost).
Quote:
Originally Posted by Bigborebagger
It seems like the main vaccum line coming from the right side of the engine pulls either a full vaccum or some of the electric selinoids or diaphrams are not working properly. To tell you the truth I'm pretty perplexed at this one. I've never come across this before. Plugging both just removes the turbo I believe so I'm stuck until I can make it manual. I know the vaccum set up is right. I've checked it over three times or so. If the vent line had some resistance it would be possible that the EGR and Wastegate might function as vaccum is increased by RPM's but there is none. Any ideas or testing I can do.
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I'd swap to the pressure wastegate and remove all that junk. In the meantime, just make sure it's plumbed according to the diagram in the FSM. What is the problem/symptom when driving, btw, with everything connected normally?
