Technical Fuel Injection Light

[gorman_bec]

Hello everyone,

I have been having lots of problems with my car, cylinder head gasket, heater matrix and new battery! I replaced the battery yesterday as it was dead as a dodo, but now it is driving really sluggish, finding it tricky to get up to speed and the fuel injection light keeps coming on...only for about 10 seconds at a time, but about 5-6 times within 10 miles.

Any ideas people, or is it another garage job?? If it is, what sort of expense do you think I am looking at??

Thank you for your help

Lots of love Bec xxxx

 

[arc]

when the light comes on, does the car hesitate and loose power? It could be the MAP or lambda sensor.

Best bet is to take to a garage who can read fault codes from the ECU, don't take it to fiat for this - have a look in the yellow pages, ring around it shouldnt cost much more than £20.

When the light comes on, the ECU should be logging a fault code to say why it came on - the garage will be able to tell you the code, what it means and what needs repalcing to sort it out. Saves you replacing sensors that are working fine.

 

[gorman_bec]

hi, thanks for the info. The car is very shuddery all the time, worse when accelerating. Didn't seem to do anything worse when the light came on though...just bad all the time! feels like it might cut out when i am for example pulling out of a junction when stopped...takes a long time to get it going...need to leave big gaps!! Going up hills really struggles, seems to be no accleration with foot down, just get slower and slower, having to change gears to compensate.

Any more advice would be great, thank you

Lots of love Bec xxxx

 

[MR.COATES]

Is it a MK2?

 

[gorman_bec]

Sorry forgot to say what it was! It is a 55S 1995 1.1.

 

[thefishdude]

could itbe a worn or damages spark plug ??? not sue if that could cause the warning light though

 

[MR.COATES]

No worries.

I only ask cause my girlfriend's 1.2 8v MK2 had an identical problem and it turned out to be the ECU.

One minute fine, then engine management light on, then off again, until it started sounding and running like a tractor. ECU replaced, problem gone.

But could be several things really....

 

[arc]

when was it last serviced?

 

[gorman_bec]

hi, I replaced cylinder head gasket, oil filter, air filter, spark plugs about a month a go, heater matrix 2 weeks a go. My dad mentioned that if you dont get spark plugs for a punto from a dealer they can be a bit funny...so the fiat man told him Is this true at all?

Lots of love Bec xxx

 

[JonnyBoy]

My dad mentioned that if you dont get spark plugs for a punto from a dealer they can be a bit funny...so the fiat man told him Is this true at all?

Nope, that's complete crap, the sort of thing you'd expect to hear from the average Fiat dealer use NGK or Denso plugs and you'll be fine. Champion are a bit crap though and worth avoiding.
Your best bet is to get the ECU analysed at Fiat or by a fuel injection specialist, they can tell what's broken from the fault codes. If the ECU itself is dead it'l cost a small fortune to replace, but it's quite rare that these break.

 

[shabz1981]

Hi Your problem sounds very similar to mine....my problem is still not solved

check out my thread:
https://www.fiatforum.com/showthread.php?t=20371

 

[gorman_bec]

Hi guys, car fixed! It was the ignition coil, only firing on 3 cylinders. £65 later and it is running a lot better. Unfortunately he reckons the cylinder head gasket is gonna need replacing soon....I only did it about 5 weeks ago!! We even skimmed the hed, new bolts, new everything!! Poor little car!

Thanks again for all your help...until next time!

Lots of love Bec