Installation
Differential systemECM / PCM Processor
DESCRIPTION
The ECM continuously monitors its internal processors (CPUs), A/F sensor
transistors and heated oxygen
sensor (HO2S) transistors. This self-check ensures that the ECM is functioning
properly. These are
diagnosed by internal "mirroring" of the main and sub CPUs to det ...
Mass or Volume Air Flow Circuit
DESCRIPTION
The Mass Air Flow (MAF) meter is a sensor that measures the amount of air
flowing through the throttle
valve. The ECM uses this information to determine the fuel injection time and to
provide appropriate airfuel
ratio. Inside the MAF meter, there is a heated platinum wire whic ...
For vehicles equipped with mobile communication systems
FOR VEHICLES EQUIPPED WITH MOBILE COMMUNICATION SYSTEMS
(a) Install the antenna far away from the ECU and
sensors of the vehicle electronic systems as
possible.
(b) Install an antenna feeder at least 20 cm (7.87 in.)
away from the ECU and sensors of the vehicle
electronic systems. For de ...