I'm not sure I have the latest here, but with dobber13's recent find, we should have a look. This is from Lucid's Bentley Errata Update I have bookmarked from a year ago, with Charlie's cite in red.

PAGE #
030-4 — The VIN list shows "O" as the letter for '93, should be "P".
032-7 — Fig. B10106, Fuel Pump/Filter misidentified
212-1 — Erroneous valve/piston caution.
212-4 — Erroneous valve/piston caution.
214-2 — Fig. 3. Shows front of camshaft. Text refers to "rubber plug" which is at the rear and probably refers to B21/23.
214-4 — Three erroneous valve/piston cautions.
214-5 — Erroneous valve/piston caution.
215-4 — Step 9 text ("pull") disagrees with Fig. 9 caption ("push").
215-5 — Step 7. "See Fig. 11" should conclude Step 6 (reference to guide plate).
215-5 — Tightening Torque stage 2 should be 60° (not 90°)
215-5 — Fig. 11 Camshaft sprocket should be Crankshaft
216-9 — B230 crank pulley Tightening Torque missing (Stage 1 is 44 ft. lb., Stage 2 is a further 60° angle tighten)
220-5 — "Oil Pressure Warning System" No Oil Pressure info in Chapter 380, Instruments, as referenced.
240-5 — "Relieving Fuel Pressure" Pulling fuel pump fuse does nothing. Engine won't start or run with pump disabled.
240-17 - "2. With the ignition ON, check for battery voltage across the terminals of the regulator..." [warm up regulator in Turbo] The voltage is supplied by the fuel pump relay only during cranking or running.
240-18 — "to test start injector" Step 2 says to disable ignition "as described in Chapter 280" (remove wires from Coil terminal #1). But the Fuel relay won't energize without pulses from Coil #1. This means there will be no FI operation as needed in Step 5 to test the Cold Start Injector. (Although some minor residual fuel pressure might be retained.)
240-21 — Can't adjust dwell (Step 5) with O2 sensor disconnected (Step 4). ECU needs O2 input in order to vary the dwell, based on mixture adjustments. (With no O2 input, the ECU defaults to a preset duty cycle.) Much better coverage of this subject in Chapter 253, Emission Control.
240-22 — Same problem, Open Loop frequency will be a fixed default value.
241-5 — Fig.2 is not an LH-2.0 system (note OBD module).
241-10 — "To test fuel pump or system relay (LH-2.0" the sentence saying "Therefore, testing procedures apply to either relay." is not correct. See step 2 at top of next page.
241-11 — Step 2 is wrong. With ignition OFF, there will be NO battery voltage at fuel relay terminal 86, even though it should be at system relay 86. To see voltage at fuel relay 86, the key must be ON.
241-11 — "To test main relay (LH-2.2, LH-2.4, LH-3.1)", Step 3, change terminal 86 to 85.
241-16 – AMM idle mixture pot step 5: “The resistance should decrease as the screw is turned clockwise…” Wrong—It should increase clockwise.
241-17 — Fig.13 arrow points to location of old Constant Idle System Temp Sensor. Should point to location under #3 runner, per text.
241-18 — Step 3 is OK for LH2.2 (single element) sensor, but not for dual element LH2.4/3/1 sensor, which needs to be measured from each terminal to sensor body to test each element.
241-19 — Step 3 won't work because TPS is unplugged (in Step 2). The ground path goes from TPS terminal 2 internally to terminal 18, and then out thru the connector wire to ground on the throttle pulley bracket.
241-19 — Right lower, To replace throttle switch. Step 3 "...adjust it as described below". Below should be "above".
241-22 — To test oxygen sensor heater. Step 9 won't work because just switching the ignition ON won't put voltage on the "yellow-red wire". The FI relay must be energized (requires cranking/running) to put voltage on the r/y wire.
241-27 — Check, adjust idle mixture using dwell meter or LED test light. LED does not operate on LH2.0, only LH2.2.
241-28 — Step 7: Dwell meter fluctuation rate is more important than the 20° to 70°, as it shows the oxygen sensor switching rate between lean and rich, roughly 1-2 per second.
241-28 — Step 9, the terms "lean" and "richen" are reversed. Left (CCW) = Lean, Right (CW) = Richen.
242-5 — Top right, Step 4 should refer to Fig. 7 not 8.
250-5 — Replacing Intake Manifold, No need to drain coolant.
253-13 — Step 8, O2 voltage at 0.5 volts would indicate a dead sensor.
280-3 — For consistency with FI OBD text in Chapter 241, the "To read self-diagnostic fault codes" heading should have (diagnostic control function 1) beneath. [What we usually call "OBD Mode 1"]
280-3 — CAUTION Next-to-last bullet item. Really? How would that differ from turning the Key On? (Weird caution. Must have been some bad experience explained hastily.)
280-4 — Again..."To make diagnostic function check" should have (diagnostic control function 2) beneath. [OBD Mode 2]
280-7 — Fig. 10 shows a B27/28 distributor
280-8 — Step 1..."four harness connectors" [four?] ..."two at the firewall" [?]
but only the CU and dist are discussed.
280-9 — Step 6, last sentence. "connected" should say "removed".
280-11 — Last item on page says temp sensor is between 1&2, should be 3&4. Also see Fig. 23 comment below.
280-12 — Fig 23 shows something we don’t recognize as a U.S. red block.
280-12 — Step 7. Use of ECU to mean ICU may be correct but is confusing.
280-12 — Step 8 (referring to ICU): ohmmeter should connect between 23 and 20, not 10 and 20. CPS wiring to ICU is 23=signal, 10=return (grounded in ICU), 11=shield (grounded in ICU). ICU pin 20 leads to external ground.
280-12 — Step 10, coil resistance secondary should be 6.5-9.0 Kohms.
330-2 — Fig.3. Solenoid terminal 16 not explained. [+12 when cranking]
390-2 — Fuse 6 is not "main fuel pump" for 1985–1990. It became such from '91 till late '93, but then was replaced by a 4-element underhood fuse block.
Could say "not used on U.S. cars 1985-1990"
390-2 — Fuse 11 does not supply voltage to "ignition system (1983-1984)".
The common side of fuses 11-12-13 is used as a junction for voltage FROM the ignition switch TO the ignition system (which has no fuse). The ignition system voltage comes from the common 11-12-13 fuse INput side.
390-2 — LH fuel injection for 1983 is 12, and 1984 is 13.
390-3 — Wiring diagram component ID number errors:
• In the pictures, numbers 212 (25A fuse) and 214 (LH ECU) are reversed.
• The same is true in the component listing below the picures.
• Also in listing, items 216 and 217 confuse LH 2.0 with LH 2.2/4. Items 216 and 217 are the fuel and main relays in LH 2.0. Later, the LH2.2/4 dual FI relay took over both functions and was assigned the 217 number in diagrams.
A possible correction:
• 216 fuel relay, LH 2.0 system.
• 217 main relay, LH 2.0 or FI relay LH2.2/4.
• 217 FI relay LH2.2/4 location not shown in pictures.
390-30,31 — 1986 model diagram index. Item entries don't show 19, the "High level brake light" (but it's on the diagram at F2 and H2).
510-4 — "To replace rear brake pads". Step 1 says Lift "front"... [should add: "oops, lower front and lift rear.."]
610-2 — Step 3 NOTE, and Fig. 5. Different size BJ to Control Arm nuts?[Anybody?]
720-2 — Omit Step 6 as redundant to step 7, which does the job simply.

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Art Benstein near Baltimore

"My parents didn't want to move to Florida, but they turned sixty and that's the law." (Jerry Seinfeld)