Checking Preweld Measurements And Watching
Align to the standard reference dimensions, based upon the body dimensions illustration, so that new parts are installed in the correct position.
Welding Notes
For the number of weld points, welding should be performed in accordance with the following reference standards.
Spot Welding Notes
The shape of the spot welder tip is D=(2?t)+3. If the upper panel thickness is different from that of the under panel, adjust to the thinner one.
Because the weld strength is affected by the shape of the spot welder tip, the optimum condition of the tip should always be maintained.
Spot welds should be made at points other than the originally welded points.
Before spot welding, make a trial weld using the same material as the body panel to check the weld strength.
Checking Weld Strength
Installation locations of the engine, chassis, and seat belts are designated as important safety locations for weld strength. Check weld strength by driving a chisel between the panels at every fourth or fifth weld spot, and every tenth regular weld location.
Drive the chisel between the panels according to the number of panels as shown below.
To determine weld strength, drive the chisel between the panel and check whether the panels come apart. If the panels come apart, make another weld near the original weld.
Restore the shape of the checked area.
Intake Air Temperature (Iat) Sensor Inspection
IAT Sensor No.1
Resistance inspection
NOTE:
Because the IAT sensor No.1 is integrated in the MAF sensor, replacing the
IAT sensor No.1 includes replacement of the MAF sensor/IAT sensor No.1.
1. Disconnect the negative battery cable..
2. Disconnect the MAF sensor/IAT sensor No.1 ...
Knock Sensor (Ks)
Purpose/Function
Detects abnormal combustion in the cylinder as basic information for mainly
determining the ignition timing.
Detects abnormal combustion in the combustion chamber and inputs it to the
PCM as a knocking signal.
Construction
Installed on the cylinder ...
Heated Oxygen Sensor (HO2 S) Removal/Installation
WARNING:
A hot engine and exhaust system can cause severe burns. Turn off the engine
and wait until they are cool before removing the exhaust system.
CAUTION:
Do not allow flammable objects such as the taping for bundling wiring harness
to come into contact with the exhau ...