 Fuel problem, Way to rich |
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 Mar 10, 2014 - 3:57 PM
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Enthusiast  Joined Jan 22, '06 From Savannah, GA Currently Offline Reputation: 1 (100%)  |
So ive had my swap completed for quite some time and its always ran overly rich. A little background, Its a 94 with an ST-185 3SGTE swap, stock boost, and 3inch exhaust all the way back. Its getting around 15-18 mpg. My question is could this be due to the Walbro 255 fuel pump with the stock fuel pressure regulator. I bought an adjustable AEM FPR but never installed it because i was told it was unnecessary. Any ideas?
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Mar 10, 2014 - 4:30 PM
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 Enthusiast Joined Mar 8, '04 From Newport, RI Currently Offline Reputation: 63 (99%) |
Put in a new 02 sensor first.
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Mar 11, 2014 - 9:33 PM
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 Enthusiast Joined Aug 12, '07 From Lancaster, Pa Currently Offline Reputation: 35 (100%) |
What boost are you running? If it's low (like seven 7lbs maxed out) it could be a clogged cat
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Apr 1, 2014 - 11:17 PM
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Enthusiast Joined Jan 22, '06 From Savannah, GA Currently Offline Reputation: 1 (100%) |
Its got three inch all the way back, no cat and high follow muffler
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