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Old 07-12-2003, 09:25 PM   #1
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Default Rough at idol and boost is -35

My service engine light is now on and the engine is running VERY rough at idol, heavy smell of exhaust, and my boost gauge is running -40 to -35 (bouncing) instead of the normal -60. Any ideas???

94 ssei

Thanks guys.
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Old 07-12-2003, 10:06 PM   #2
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Other than what SSEi95 and I suggested in irc, no....but I'm curious to see what others have to say.
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Old 07-12-2003, 10:40 PM   #3
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IRC? How do I get into that chat?
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Old 07-12-2003, 10:45 PM   #4
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There'* a post in General Chat. From DrJay. Just follow it. You'll need the software from mIRC.com if you don't already have it.
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Old 07-12-2003, 10:55 PM   #5
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i have a question, since when does an engine produce 30-40 inches of vac.
i have never in my life seen a boost gauge go that low. my autometer boost gauge goes to 30 inches of vac but i have never seen it go farther than 20 in.
if it does bounce like that, you might want to check the wastegate and the wastegate actuator. that would cause an unstable idle, but i still have never seen a boost/vac gauge go that low
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Old 07-12-2003, 11:04 PM   #6
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Quote:
Originally Posted by jeffrey10x2
i have a question, since when does an engine produce 30-40 inches of vac.
i have never in my life seen a boost gauge go that low. ...
He is Canadian. That is in kpa. For us yanks, it is running about -5 psi at idle.
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Old 07-12-2003, 11:06 PM   #7
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Damn canucks! Those northern boost gauges are spooky.
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Old 07-12-2003, 11:08 PM   #8
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my bad. lol sounds like a vac leak or still a faulty wastegate or wastegate actuator
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Old 07-12-2003, 11:33 PM   #9
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Quote:
Damn canucks! Those northern boost gauges are spooky.
Easy now! Don't be damning us. They're all made in the US.

Too bad it isn't in psi....with mine pegging at 70.
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Old 07-13-2003, 01:07 AM   #10
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Can you tell us what the PCM service code is?
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