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Old 31-03-2018   #1
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Cutting out when warm problem

Hi all, Iím new to this site so hope Iím doing this correctly.
I have a 1.6 petrol 2004 Multipla which is our UK holiday hack.
Starting and driving is fine from cold. As soon as it reaches 4 bars on the temp gauge it decides to die. Itís splinters for 5 seconds before doing so. It will idle from cold for 20 minutes also until this problem occurs too.
Any thoughts? Or has anyone had this problem before.
Thanks in advance.
Adam
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Old 31-03-2018   #2
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Re: Cutting out when warm problem

Check for fault codes in ecu.
Where are you located a member near by may be willing to help read codes.
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Old 05-04-2018   #3
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Re: Cutting out when warm problem

Thanks for your reply.
Iím located in SG5 4EH.
I have a 2002 donor car. Do you think I could just swap the ECUís over?
Plug and play style!
Adam
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Old 06-04-2018   #4
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Quote Originally Posted by jackwhoo View Post
Check for fault codes in ecu.
Where are you located a member near by may be willing to help read codes.
Thanks for your reply.
Iím located in SG5 4EH.
I have a 2002 donor car. Do you think I could just swap the ECUís over?
Plug and play style!
Adam
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Old 06-04-2018   #5
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Quote Originally Posted by jackwhoo View Post
Check for fault codes in ecu.
Where are you located a member near by may be willing to help read codes.
Thanks for your reply.
Iím located in SG5 4EH.
I have a 2002 donor car. Do you think I could just swap the ECUís over?
Plug and play style!
Adam
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Old 06-04-2018   #6
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Re: Cutting out when warm problem

Unlikely due to immobiliser.
Fingers xed a member with multi ecu scan nearby will be able to help.
In meantime you could try using the engine temp sensor from your donor car.
If the engine ecu is mounted on the engine search the web for fiat stilo ecu problem dropped pins.

Sent from my Rook from EE using FIAT Forum mobile app
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Old 06-04-2018   #7
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Re: Cutting out when warm problem

I'm willing to bet it will be a problem with crank sensor if there is no warning light on the dash when it happens.
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Old 06-04-2018   #8
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Re: Cutting out when warm problem

Happy to try all of above. Thank you
No warning lights on dash.
No fault codes when plugged in.
I did start it the other day and it ticked over for 45 mins with the radiator fan kicking in as it should. Next day, went back to cutting out again!
Do sensors become temperamental before giving up the ghost, or do they just stop working.
When the engine does cut out itís at the point when the radiator fan should kick in.
Thanks
Adam
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Old 06-04-2018   #9
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Re: Cutting out when warm problem

Yeah they often get temperamental sometimes they stop working aswell
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Old 07-04-2018   #10
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Re: Cutting out when warm problem

I see. Do you think the engine would conveniently cut out if it was getting tho hot?
I.e if the fan wants kicking in. Relay?
Or do cars just overheat causing obvious damage.
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Old 07-04-2018   #11
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Re: Cutting out when warm problem

Getting too hot (typo)
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Old 13-04-2018   #12
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Re: Cutting out when warm problem

If anyone reads this and has similar problems.
I cleaned all the sensor connections with electrical cleaner.
Clanged the map and cam sensor. Opened the ecu and sprayed that with electrical cleaner.
Not sure if this was the correct thing to do but hey presto!
All seems to run fine now!!!
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Old 13-04-2018   #13
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Re: Cutting out when warm problem

Quote Originally Posted by brickfoot View Post
I'm willing to bet it will be a problem with crank sensor if there is no warning light on the dash when it happens.
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Old 16-04-2018   #14
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Re: Cutting out when warm problem

Quote Originally Posted by Adam elgood View Post
Happy to try all of above. Thank you
No warning lights on dash.
No fault codes when plugged in.
I did start it the other day and it ticked over for 45 mins with the radiator fan kicking in as it should. Next day, went back to cutting out again!
Do sensors become temperamental before giving up the ghost, or do they just stop working.
When the engine does cut out itís at the point when the radiator fan should kick in.
Thanks
Adam
When a crank sensor becomes faulty, it doesn't log a fault. As far as the ECU is concerned, if it receives no signal from this sensor, it thinks the engine has stopped (such as in the case of stalling), and does not light up the EML light.

One tell-tale to look out for is the rev counter suddenly going dead (i.e. not showing current engine speed), while everything else on the dash is reporting fine.
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Old 17-04-2018   #15
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Re: Cutting out when warm problem

All my diesel multiplas have had crank shaft sensors changed and they were cutting out when warm. (I would have replied sooner but had password problems)
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