Motronic 1.7 Fiat ECU Pinout Component Diagram

Motronic 1.7 Fiat ECU Pinout Component Diagram

 

More ECU PINOUT Components:

ECU Modules Repair Pinpout & Components

 

 

Main components

1 EPROM;

2 RAM memory;

3 Processor;

4 Pulse controller: Nozzle, coil and actuator drive ML;

5 Protection diode;

6 Coil 1 and 2;

7 Stepper motor and pump relay;

8 Spout;

9 5 V regulator;

10 Capacitor.

 

Technical specifications

Special features

. Pin 1 facing the processor;

. Intel 8051 processor – 68 pins;

. Eprom 27C256 with 32 kb;

. Analog coil signal;

. Phonic RPM signal 60-2;

. Has no immobilizer;

. 1 coil, rotation sensor, 1 injection nozzle.

 

Common Defects

. Cold solder, if it is damp or oxidized;

. Nozzle and coil oscillation;

. Check that the nozzle is original and the TPSBUTTERFLY, the two work together;

. Locked stepper motor warms up the drive motor step and ends up burning;

. Nozzle no pulses possible defect in the processor help. This processor also controls the ignition.

. ECU for Clio Mono, Peugeot mono with Bosch 3.1 are very similar, but not interchangeable.