HOTWIRE PLUS 8s
(3.9s = UK & Europe 1991-2000 or from1990-1996 for overseas Plus 8s)
There are more Hotwire Plus 8s that have been made than any other fueling type, EFI or carbs. Though they are more sophisticated than the Flapper models they are far cry from the later GEMS and, luckily, still very approachable by the home garagiste. Few if any problems from the Factory. Diagnosis became easier with hand-held code readers. Sadly, the system was the first to come under regulatory emissions pressure and there are ECU variations with the Morgan version having Morgan-specific features. Some parts have become difficult to source.but suppliers and technical repair is still available.

1. AIRFLOW
1.01 Air Duct Replacement
1.02 Air Filter (Note of Caution for High  Flow Filters)


2. COMPONENTS
2.01 Earth Wiring
2.02 Fan Belt
(Serpentine
)

2.03 Fuel Filter
2.04
IAVC
(your idle)

2.05 O2/Lambda Sensor (Checking yours)
2.06 Relays
2.07 Setting the Base Idle
2.08
Stalling
2.07 Stepper Motor (your idle)
2.08 Tune Resistors on a 14CUX & Removing Your Cats


3. DIAGNOSIS
3.01 Articles
3.02
Checking Procedure
(by simple multimeter)
3.03 Diagnostic Reader (Land Rover)
3.04
Diagnostic Reader (Morgan)
3.05 Diagnostic/Tuning Software (RoverGauge for Hotwires)
3.06 Fault Codes
3.07 Problems and Diagnosis

3.08 Rovacom
3.09 RoverGauge
(diagnostic tool for Hotwires)
3.10 TestBook
3.11 Hotwire Manual by Ciaran J. Brady (Excellent!)
3.12 Hotwire Manual
by Land Rover

4. ECU
4.01 Overview
4.02 ECU
4.03 14CUX
4.04 Injection  (History, Components and Overview)
4.05 Plug
4.06 Plug Pins
4.07 Variants & Numbers
4.08 Wiring Diagram


5. ISSUES
5.01 Idle Issue
5.02 Morgan Issue
5.03 Stalling
5.04 Rescue Kit

6. OPTIONS

6.01 3.9 & the 4.0
6.02 To Chip or Not to Chip (3.9s)
6.03 To Chip or Not to Chip (4.6s)
6.04 Chipping I (Installing a New)
6.05 Chipping II (Installing a New)
6.06 More Power?

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