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Old 30-10-2017   #1
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Engine management light flashing

Recently changed the cylinder head on my seicento to a skimmed punto head and when it reaches 80mph the engine management light flashes, does anyone know why this happens?
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Old 30-10-2017   #2
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Re: Engine management light flashing

@mrcento may be able to help you with this issue
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Old 30-10-2017   #3
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Re: Engine management light flashing

Also a quick look brought up trying a phonic wheel learn which can be achieved by red lining the car 3 times and also it can be problems with emmisions on the lambda but that was just a quick scan haha
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Old 31-10-2017   #4
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Re: Engine management light flashing

Ok will try that on the way home from work tonight
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Old 02-11-2017   #5
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Re: Engine management light flashing

Done the wheel learn the other night and it flashes at 90 now
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Old 03-11-2017   #6
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Re: Engine management light flashing

Omg hahaha that's brilliant just keep doing it till your off the Speedo then you will be laughing
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Old 30-11-2017   #7
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Re: Engine management light flashing

I’m now back to 80, going to code read it at work and see what the problem could be
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Old 01-12-2017   #8
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Re: Engine management light flashing

This is so odd possibly a proxy alignment would work but not sure if older fiats had that capability
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Old 03-12-2017   #9
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Re: Engine management light flashing

It’s multiple cylinder misfires, cleared it and runs better but going to check again tomorrow
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Old 05-12-2017   #10
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Re: Engine management light flashing

Ok when was the last time you changed the spark plugs leads or coil pack as any of these can cause a misfire
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Old 07-12-2017   #11
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Re: Engine management light flashing

Put super 4’s in when changed the head and got a new coil just waiting on leads coming
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Old 09-12-2017   #12
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Re: Engine management light flashing

Is that the Bosch 4 spark plugs if so they made my Grande drive funky dunno if same issue but it didn't like them at all put the normal Bosch top end plugs in and ran perfect has it being doing it since you put those in or before for the price of plugs it may be worth swapping them out?
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Old 12-12-2017   #13
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Re: Engine management light flashing

It had super 4’s in when I got the car and I wouldn’t recommend anybody putting the punto head on a seicento cause mine boiled up yesterday morning and still doesn’t run right
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Old 16-12-2017   #14
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Re: Engine management light flashing

Oh that's not good faulty water pump or thermostat?
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Old 17-12-2017   #15
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Re: Engine management light flashing

Thermostat jammed shut for a few seconds and released it self when it cooled down
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