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1998 ford E-350 5.4 V8 running lean

  • Jorgecardenas26
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2 weeks 3 days ago #92311 by Jorgecardenas26
1998 ford E-350 5.4 V8 running lean was created by Jorgecardenas26
Vehicle running lean. No intake leaks.   No exhaust leak. Fuel pressure is good.  No misfires. Can i get some help troubleshooting? 

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  • Chad
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2 weeks 2 days ago #92312 by Chad
Replied by Chad on topic 1998 ford E-350 5.4 V8 running lean

Vehicle running lean.

We need a little more information.

Why do you say that it is running lean? Are there any codes? Do you have access to scan data?
What is your Total Fuel Trim @ idle? What is your Total Fuel Trim with an Engine RPM of 2500?
What is your MAF sensor GPS, @ idle?

 
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
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2 weeks 14 hours ago #92313 by Blechvogel
Replied by Blechvogel on topic 1998 ford E-350 5.4 V8 running lean
In addition to Chad's questions: does the O2 react to forced lean and/or rich condition?

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