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Testing fuel pump

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Old 08-26-2008, 06:20 PM
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Default Testing fuel pump

A/F ratios look fine under idle and cruise conditions but have just recently gone lean under WOT conditions. Settings that previously gave me A/F ratios in the 10s are now giving me 12s and beyond. Where can I go to have my fuel pump tested to make sure its not about to take a dive?
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Old 08-27-2008, 07:43 AM
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Default Re: Testing fuel pump

Originally Posted by tangoDelta
A/F ratios look fine under idle and cruise conditions but have just recently gone lean under WOT conditions. Settings that previously gave me A/F ratios in the 10s are now giving me 12s and beyond. Where can I go to have my fuel pump tested to make sure its not about to take a dive?
get a fuel pressure gauge that you can see while you are driving. If fuel pressure is dropping when you get down on it then you know it could be the pump or a restriction somewhere.
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