2000 Ford windstar 58000 miles. I got a system too lean Bank 1. any ideas what this may require and if this will clear up the check engine light
Jul 9, 2006 at 4:35 PM
2000 Ford Windstar P0171 Too Lean
FLIPPER
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I think that it has something to do with your fuel system not being able to fully correct an issue with fuel trimming, rich or lean,, something has happened which is preventing the pcm from setting the optimum parameters... any work done lately on the engine compartment,, I would check all the air cleaner parts,, make sure all vacuum hoses are hooked up and in good shape, no little rips hiding underneath,, check pcv system and fuel lines, make sure all in good condition.. if nothing is obvious, you may have to take it to a reliable repair shop or the dealer,,, tracking it down requires some specialized equipment, unfortunately... good luck
Jul 10, 2006 at 9:46 AM
Suggested Repair
Inspect the air cleaner, vacuum hoses, PCV system, and fuel lines for leaks or damage that could prevent proper fuel trim. If nothing obvious is found, have a shop or dealer diagnose the lean condition with specialized equipment.
Conversation Summary
A 2000 Ford Windstar with 58,000 miles has code P0171, system too lean on bank 1, and a check engine light. The expert said the PCM cannot fully correct the fuel trim and recommended checking the air cleaner, vacuum hoses, PCV system, and fuel lines. If no obvious problem is found, a shop or dealer may need specialized equipment to track it down.