Originally Posted by John Deere Boy
Originally Posted by TJ'sblackbonne
what would cause lean conditions? o2? clogged fuel filter?
And or Bad Pump.... Check the Fuel pressure... Make sure its within the 48-55 PSI spec for a 95 L35 Bonneville... These cars will not be happy if the pump is not keeping up...
If the pressure is low, as reccomended replace the filter... If you have not done this yet, it may be part of the problem... Should run about $10 for a fuel filter and is easily replaced if the line is not rusted...
So Replace the Fuel Filter, If the O2 is original and is about shot and has the Puter thinking its actually rich, The computer could lean out the mix... Which brings me to another question, Has the SES come on at all?
The MAF could be another issue as well...
Check the Fuel pressure and tell us what you find
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