[98harleydude]

We had the same problem with the TOO LEAN CODES on our 99 Winstar. Had to take it to the shop . It was a Mfg. problem but it was too long to make Ford pay for the problem . They had to replace som ebolts & gaskets around the intake Man. Ford sent out a service notice about the problem but guess who gets the bill ?
Once they fixed the problem the check eng. light went out & it ran fine . Good luck . Jim