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Matt
Matt, Mechanical Engineer
Category: Car
Satisfied Customers: 22253
Experience:  BEng hons Mech engineering, in auto industry 22 years
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Fiat Doblo Family 2008 1.3 multijet. triangle shapes warning

Resolved Question:

Fiat Doblo Family 2008 1.3 multijet.
triangle shapes warning light on.
Turbo blew last month and reconditioned.
Submitted: 3 years ago.
Category: Car
Expert:  Matt replied 3 years ago.
Hello

On any car if you get a check engine light or other fault light this typically means one or more of the sensors has failed or has a faulty connection.

The fault can be something quite simple and nothing that’s going to stop the car to something quite major that will reduce engine power and possibly stop the engine

The ECU senses this and may put the car into 'limp home' mode which typically limits the revs and the amount of power available. Usually the car is safe to drive for a short distance as the mode is intended is intended to get you home without incurring any engine damage

The quickest route to repair is to have the car plugged into a diagnostic machine which will read off the fault code stored in the ECU (providing the light is still on at this point) and indicate which sensor has failed or whether the fault is more serious.

from your description I'd say it could be a wiring issue as things tend to expand when hot and its possible a poor or partial electrical connection is being pushed apart on one of the major sensors so check the connection plug and wiring to the following;
Airflow meter
Crank position sensor
Cam position sensor
O2 sensor
Throttle position sensor

unplug each in turn and use some switch / contact cleaner spray on the pins to ensure its all grease / dirt free

Also worth checking the connections to the fuel pump for the same reason - unplug each in turn and give them a good squirt of switch / contact cleaner - Not WD40
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