Hi,

In my new Grande Punto I am facing some issue with warning lights. Some times while idling soon after the cold start EOBD light is blinking and then disappearing. The car jerks while this warning lights blinks.
Please give your remarks.

Thanks

we need a bit more information than that what Grande punto is it exactly petrol or diesel engine size would be a good start....

Andy Monty said:

we need a bit more information than that what Grande punto is it exactly petrol or diesel engine size would be a good start....

Click to expand...

Mine is a Euro IV 1.4L 16 V FIRE petrol engine(90 Bhp & 115 NM).
Odometer reading: 1100 km. I am using normal unleaded petrol as mentioned by manufaturer.

I have observed the problem occuring in three diffrent situations as given below

1. While idling after cold start in morning around 28-30deg C, after 50 sec EOBD light blink once and then goes away. This was happening almost every cold start and now a days not occurring every day. Once when I tried after keeping the vehicle in hot sun for 4 hours this didn't occur.
2. While taking the vehicle after cold start, without idling, in 2nd or 3rd gear vehicle jumps ahead as if a sudden forward kick has been given. During this time the EOBD light blinks and the tacho meter needle shoots up. I have observed(not always) the engine temperature also shooting up and then coming to normal in a sec. All happening simultaneously.
3. While turning on vehicle (MAR position) after the injector comes to its normal position(when the sound stops)I am getting the following message 'Excess radiator Fluid temp" "turn off engine". Some times temperature needle shoots up and come back to the minimum or normal position depending on actual engine temperature. This is not happening always. Once this happen immediately after ignition and stayed for some time till I stopped the engine. Then when I immediately stated again the problem was not there.
I am from India and Fiat sell cars through TATA motors who also do servicing for FIAT. Those people are not very well experienced to deal with complicated technical problem. One I had taken the vehicle to the service station and they did the computer diagnosis and couldn't find any error. Now I have to bring this issue to Fiat experts for solution. I haven't read about this kind of issue in any Fiat users Forum.
I have to say that the car is perfectly OK other than this warning light issue. During the initial acceleration(even with a light foot) there is a growling but it looks it is typical of Fiat petrol engines.

Here is the video for the case1 : youtube.com/watch?v=N1tHSKJyyvA
(I am not able to give correct link as my total posts is less than 5)

Thanks
Sungoa2010.

sungoa2010 said:

3. While turning on vehicle (MAR position) after the injector comes to its normal position(when the sound stops)I am getting the following message 'Excess radiator Fluid temp" "turn off engine".

Click to expand...

This must be a known issue... Look here https://www.fiatforum.com/grande-punto/89495-recalls-known-fault-issues.html

Thanks Siomone. I will ask the ASS people to look in to it.

EOBD warning light problem in Grande Punto: Resolved

The problem got resolved by ECU software up gradation.Thanks for giving your suggestions

Hi sungoa2010

Mine is GP 1.4 petrol (2010) clocked around 90000 km
I have been experiencing the same issue; jerk in cold start & temp gauge issue you have been facing some years back.
& can't able to resolve the same.

You have said by updating the software it got resolved. kindly tell me which software to be updated. I guess u have a similar post in TeamBHP as (vsk2009)
in that u told -
"While going through various punto forum I came to know that body software update will solve the problem of fault warning lights and engine coolant temperature messages"

&

"The Issue got resolved by software updation done at TASS"

Kindly help me by saying what exactly you did to solve this issue (particularly jerk in cold start). i am trying to solve the same for almost 6 months, got frustrated & thought of selling the car and buying a new one.........