How Tight Are Lip Studs

IAW - Magneti Marelli

The engine will not start:
1. Low fuel pressure (normal 2.8 Bar)
2. Intake leaks (check engine vacuum)
3. Injection relay (defective)
4. Water Temperature Sensor (voltage too high or too low)
5. No voltage at the injectors or negative pulseless
6. Escape covered (control catalyst)
7. No sign of PMS and RPM sensor (measuring resistance and AC)
8. Do they reach the sensor signals and positive mass to the control module?
9. "The signals from the control module for the actuators? Note: If the control module has power and reach positive and negative signals from the sensors, but not out pulses to the actuators, replace the control module.


The engine starts with difficulty
1. Low fuel pressure (normal: 2.8 Bar)
2. Incorrect engine idle (normal idle: 18''to 22''Hg Hg)
3. Temperature sensor voltage wrong water
4. Failures in low-end sensor and RPM PMS
5. Defective MAP sensor (to measure the voltage output)


Engine starts then stops:
1. Fuel pressure is very low ( normal: 2.8 Bar)
2. Escape clogged (maximum pressure at idle: 1 PSl)
3. MAP sensor or connecting pipe broken or defective
4. Injection relay or faulty fuel pump
5. Leaks in the intake system (control empty)
6. Water Temperature Sensor (low voltage)


under cold Idle:
1. Stepper motor (stuck or dirty)
2. Low voltage in the water temperature sensor
3. Clogged exhaust pressure (idle: 1 PSl)


hot idle under:
1. Stepper motor (stuck or dirty)
2. Escape restricted (control catalyst)
3.
rich mixture



high cold idle:
1. Stepper motor (stuck or dirty)
2. High fuel pressure (normal: 2.8 Bar)
3. Water Temperature Sensor (Voltage High)
4. Leaking manifold (normal vacuum enralentí: 18''to 22''Hg Hg)
5. Canister valve (locked or open)
6. Throttle potentiometer (voltage high)

high idling hot
:
1. Stepper motor (stuck or dirty)
2. High fuel pressure (more of 2.8 Bar)
3. The oxygen sensor sends signals below 450 mv
4. Leaks at admission (normal vacuum at idle: 18''to 22''Hg Hg)
5. Throttle potentiometer (voltage high)
6. Canister valve (stuck open or defective)
7. High blood pressure in the water temperature sensor

Idle
unstable:
1. Mmuy fuel pressure low or too high (normal: 2.8 Bar)
2. Leaks in the intake (check engine vacuum)
3. Throttle potentiometer defective (replace)
4. Canister valve (defective)
5. MAP sensor voltage wrong or defective pipe
6. Lambda sensor (not making the changes between 100 mv and 900 mv)
7. Improper voltage sensor water temperature
8. Vehicle Speed \u200b\u200bSensor (Signal unnecessary)
9. Stepper motor (dirty or locked)


rich mixture:
1. Very high fuel pressure (normal: 2.8 Bar)
2. Incorrect empty (normal idle: 18''to 22''Hg Hg)
3. Clogged fuel return (control flow)
4. Leaking injectors (cleaning)
5. Lambda probe emits less than 450 mv tensions
6. Obstructions in the exhaust system (check catalyst)
7. High blood pressure in the water temperature sensor
8. Throttle potentiometer (high signal or defective)
9. Restrictions in the intake system (air flow) 10.Tensión
high MAP sensor (pipe blockages)


Lack of effect "pump pique"
1. Clogged nozzle (cleaning)
2. Low fuel pressure (normal: 2.8 Bar)
3. Restricted exhaust (exhaust pressure, maximum: 1 PSl)
4. MAP sensor hose defective or reduced


Detonation:
1. No voltage generates the knock sensor (replace)
2. Leaks at admission (normal vacuum at idle 18''to 22''Hg Hg)
3. Dirty injector (to cleaning thereof)
4. Low fuel pressure (normal: 2.8 Bar)


Auto:
1. Leaking injectors (to clean)
2. Escape restricted (control catalyst)
3. Camer much coal in the combustion (see candles)
4. Canister valve (locked or open)