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21-05-2012, 08:04 PM
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Regular Member
Join Date: Jun 2011
Posts: 437
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Hey All,
After a little bit of help chasing down a "problem" my car has on cold starts. In the morning, or any time of the day when cold starting the engine idles really rough, bucks and shudders for about 2 minutes, if you try to drive off it coughts and splutters. After a brief warm up, its fine! Now my wideband is telling me the engine is basicly starving for fuel, during this period of rough running the AFR's lean right out until after its left for sit for a minute. After it's "warmed up" it runs fine, AFR's are good, and there is no sign of a miss or anything. Now I am stumped, as I recently changed the fuel pump for a Walbro 255lph unit, and changed the fuel filter over the weekend also. Any ideas as to what could be causing this issue? |
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5.0 Rough On Start Up
Threaded Mode