ENGINE 1.3L QUADRAJET (90PS)
72
A. IMA CLASSIFICATION
During the test stage the injectors are checked by controlling the specifications in various pressure/flow rate
conditions. All the injectors that do not meet a certain standard are rejected; the remaining ones are graded
with a nine digit alphanumerical code known as an IMA code, applied by laser to the top of the magnet.
During fitting on the vehicle the control unit should memorize the individual code and, if one or more injectors is
replaced in a service situation the alteration to the code should be made during the diagnosis using the appro-
priate equipment.
Sr.No.
Description
1.
Pressure rod
2.
Pin
3.
Nozzle
4.
Coil
5.
Pilot valve
6.
Ball plunger
7.
Control area
8.
Feed volume
Sr.No.
Description
9.
Control volume
10.
Fuel return - low pressure
11.
Control duct
12.
Feed duct
13.
Electrical connection
14.
Fuel return connector - high pressure
15.
Spring
16.
IMA code
