Got a code on my 1999 f150 for po171 does any one knows what that mean?

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2006-06-24 09:28:37 · 3 answers · asked by leonard k 1 in Cars & Transportation ➔ Maintenance & Repairs

Oxygen sensor unable to switch, right side

2006-06-24 09:34:52 · answer #1 · answered by rich_below 4 · 0⤊ 0⤋

system to lean on bank 1. Could be a bad 02 sensor, or a vacuum leak.Fault codes only gets you started a good tech can find out what caused it.

2006-06-24 09:35:42 · answer #2 · answered by uthockey32 6 · 0⤊ 0⤋

a common problem is called the dpfe sensor..i forget what it stands for but its the first thing we test on a ford with this code

2006-06-24 13:15:32 · answer #3 · answered by iusedtohavehair 3 · 0⤊ 0⤋