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2nd turbo not working- any suggestions?

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Old 01-07-03, 11:34 PM
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2nd turbo not working- any suggestions?

I have a VR 93 FD. I just found out via my turbo boost gauge that my second turbo is not kicking in after the first one engages. I know that the pattern should be close to 10-8-10 but it's like 10-8-4. everything is stock except dp, aluminum ast. I'm checking the vacuum lines but are there any other possibilities? I appreciate all the help. Thanks. Em
Old 01-08-03, 01:57 AM
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http://www.autosportracetech.com/RX-7/rx7stuff.htm
Old 01-08-03, 01:12 PM
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Take off your intake stuff and go ahead and change out all the vacuum hoses you can going to the CRV, BOV, CCV... I had a bov hose that was leaking and a crack in another hose... after I changed em... bam - she worked as it should. about 3ft of vacuum hose to bust those out and you can eliminate one of the problems. *use zip ties
Old 01-08-03, 05:46 PM
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Re: 2nd turbo not working- any suggestions?

Originally posted by emm21
I have a VR 93 FD. I just found out via my turbo boost gauge that my second turbo is not kicking in after the first one engages. I know that the pattern should be close to 10-8-10 but it's like 10-8-4. everything is stock except dp, aluminum ast. I'm checking the vacuum lines but are there any other possibilities? I appreciate all the help. Thanks. Em
Has any work been done to your car recently or did the 10-8-4 boost pattern just suddenly happened?
Old 01-13-03, 07:24 PM
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What exactly is 10-8-4-pattern?
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