Rough idle
#1
Registered User
Thread Starter
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????
#3
Registered User
Thread Starter
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
#5
Registered User
Thread Starter
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....
#6
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iTrader: (14)
Join Date: Apr 2008
Location: Kahaluu, Oahu
Posts: 2,399
Car Info: 07 Sti
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.
#7
Registered User
Thread Starter
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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