Rough idle

Old 04-17-2016, 11:46 PM
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Rough idle

Car is having a hard time starting. I checked cylinder roughness and all is good. Changed the spark plugs just in case. But once its on and warm it would idle at 2000rpms and the drop below 1000 and the car would start to die. Before it dies my afr gauge reads at 9.2. I checked for boost leaks through the fmic and everything is fine. Checked thw turbo and still looks good with no play. What do I do????
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Old 04-18-2016, 01:07 PM
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Plugs gapped correctly? Did you clean your IACV and MAF? Are you tuned at all? Have you recently disconnected your battery?
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Old 04-18-2016, 02:17 PM
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Originally Posted by Krang
Plugs gapped correctly? Did you clean your IACV and MAF? Are you tuned at all? Have you recently disconnected your battery?
I havent Checked the IACV i just recently changed the battery. But this was going on before i changed the battery. Sparks are good bought new ones. Coils are good cause i checked for cylinder roughness. Its on a base tune nothing too hard
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Old 04-18-2016, 07:37 PM
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easy check, unplug the maf and see if it idles
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Old 04-18-2016, 11:24 PM
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Originally Posted by Krang
easy check, unplug the maf and see if it idles
I cleaned the maf And it idles pretty good but i checked the inlet and this perrin rubber inlet had holes by the bend where it touches the engine. Ugh. I ordered a new an agency power hard inlet. Its gonna be so much fun installing it....
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Old 04-19-2016, 09:23 PM
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Vacuum leak after MAF will do it for sure, in the meantime you might try plugging the holes somehow. If you have some leftover silicone coupler you can cut it and wrap around the area and secure with zip ties or a worm clamp. At least will get you around town until you get the new inlet.
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Old 04-20-2016, 10:22 AM
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Originally Posted by Krang
Vacuum leak after MAF will do it for sure, in the meantime you might try plugging the holes somehow. If you have some leftover silicone coupler you can cut it and wrap around the area and secure with zip ties or a worm clamp. At least will get you around town until you get the new inlet.
Thanks for the help. Means a lot!!
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