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P0171 and P0174 after Ported TB, lid

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Old 01-23-2008, 07:04 PM
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Default P0171 and P0174 after Ported TB, lid

I got p0171 and p0174, both indicated system 1 and bank 1 are running lean. This happened 200 miles after I put an SLP lid, bellow, and ported TB. The car won't start or even turn over. I had the battery checked and it's good. It kind of hesitates while driving.

What can I do to fix this?
Old 01-23-2008, 07:08 PM
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go back and recheck all of your plugs, and make sure the bellow is seated all the way on the bottom lip of the throttle body. and the car not starting has nothing to do with that...
Old 01-23-2008, 08:55 PM
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yeah be sure you didnt forget to hook up the iat or another sensor.
Old 01-23-2008, 09:13 PM
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I had a TB bypass kit. I forgot to put the plugs back on the holes. Reset the engine light and it starts and runs good now.
Old 01-24-2008, 07:54 AM
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scared me there man.
Old 01-24-2008, 06:35 PM
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I love it when complicated problems have simple answers! can you tell a difference after you put everything in? im getting ready to do a p&p on my throttle body
Old 01-24-2008, 07:56 PM
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Yeah the lid, bellow, and induction piece made a big difference. The p&p TB was put on before the lid and induction parts. The TB increased throttle response a hell of a lot. The induction pieces I can feel on the highway, not so much around town. Engine is a little louder from the lid too. Sounds niiiiice.




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