Chris,

I had a hunch that was the source. Compared to the Rex/Regina Green book it's wrong, and a bit misleading. FWIW, here's how I see that table:

FAQ EXAMPLE:
Table 2: EZK 116 and Regina Rex Ignition Fault Codes (* denotes Check Engine lamp goes on)
(REX 1 ignition system codes are shown in italic.) Read these from socket 6.

COMMENTS:
A - "EZK 116 and Regina Rex Ignition Fault Codes"
1) it's EZ -116K (Readers should see it right rather than vernacular, in case they need to look it up elsewhere.)
2) "Regina" being the FI system, doesn't belong here at all.
[need for copy edit]

B - "(REX 1 ignition system codes are shown in italic.)"
1) The _only_ italicized code listed is 3-3-4, which is NOT a fault code but an OK TPS response in OBD Mode 2.
2) Codes 1-4-2, 1-4-3, 1-4-4 are also valid REX fault codes but are NOT italicized as "promised" above.
[tech error and copy edit]

C - " Read these from socket 6."
1) Following the (misleading/incorrect) REX statement, this sentence seems to imply that "EZK 116" (EZ-116K) codes are read from some socket OTHER THAN #6
[copy edit].

Sorry but I am no FAQ fan.

--
Bruce Young
'93 940-NA (current), 240s (one V8), 140s, 122s, since '63.