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Old 06-02-2018, 01:37 PM   #1
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Quick vacuum confirmation

If I have a vacuum leak somewhere (for instance, a cracked oil filler pipe), the SAI's check valve won't open at all as it's run on vacuum, causing the SAI pump to be blocked.

Correct?

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Old 06-02-2018, 05:10 PM   #2
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Depends on the severity of the leak, but the short answer is yes, it will keep it from opening.
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Old 06-03-2018, 12:17 AM   #3
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Severe enough to have a substantial performance impact on the car, and to throw lean EML's? I thought I had two issues, a vacuum leak and the SAI issue, but I think it's just one big vacuum leak.
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Old 06-03-2018, 02:10 PM   #4
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Quote:
Originally Posted by geraintthomas View Post
Severe enough to have a substantial performance impact on the car, and to throw lean EML's? I thought I had two issues, a vacuum leak and the SAI issue, but I think it's just one big vacuum leak.



Vacuum leaks suck
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Old 06-05-2018, 03:58 AM   #5
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Ummm. Sorry to be a pain, but what does SAI stand for?
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Old 06-05-2018, 03:59 AM   #6
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Secondary Air Injection (pump)
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Old 06-06-2018, 04:20 AM   #7
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Vacuum leak is on the check list for SAI codes.

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