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P0171 and 0174

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Old Yesterday, 08:13 PM   #1
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These codes have been popping up the past few days. I checked the pcv snd valve itself is working and the elbow looks fine. But I can hear the vaccum leak. The psssssss noise sounds like it's coming from the back left side of the motor but it's hard to pin point
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Old Yesterday, 09:27 PM   #2
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Quote:
Originally Posted by jsack12 View Post
These codes have been popping up the past few days. I checked the pcv snd valve itself is working and the elbow looks fine. But I can hear the vaccum leak. The psssssss noise sounds like it's coming from the back left side of the motor but it's hard to pin point
Soooo.....What's your question?
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Old Yesterday, 09:52 PM   #3
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There's some vacuum lines around the back of the engine, check all lines and tees, there's an elbow on the back of the throttle body also (a PITA). If all those check out, I'd say intake gaskets. Which are also a PITA. Check all lines back there. Elbows too.
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Old Yesterday, 10:30 PM   #4
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Originally Posted by conboi24
There's some vacuum lines around the back of the engine, check all lines and tees, there's an elbow on the back of the throttle body also (a PITA). If all those check out, I'd say intake gaskets. Which are also a PITA. Check all lines back there. Elbows too.
Okay I will have to do that. Whatever it is it's not affecting performance. Power is the same. Running a little rough at idle but nothing bad.
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Old Today, 01:03 AM   #5
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It's the PCV elbow, - that's all that's back there if you even have one. If not it's the line. I have no idea what you talking about in your post, but the least you should do is post what the hell we are attempting to help you fix lol

You know, model year ...engine. Hows that sound ?
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