Technical Fiat Strada 1.9 JTD cuts off

[waltieee]

Hey everyone! Our dear fiat Strada started cutting out after a few seconds of being turned on, this started happening from nowhere.
After like 20 tries it starts and stays running, what might be the problem?
Here's a video of the problem and it idling correctly attached . (it's from last year when I had tried fixing it but to no avail)
yes the battery was about to die and I was revving it on purpose, but even without those the problem still appears

 

[bugsymike]

Hey everyone! Our dear fiat Strada started cutting out after a few seconds of being turned on, this started happening from nowhere.
After like 20 tries it starts and stays running, what might be the problem?
Here's a video of the problem and it idling correctly attached . (it's from last year when I had tried fixing it but to no avail)
yes the battery was about to die and I was revving it on purpose, but even without those the problem still appears

I was going to say air in fuel , but the way it stops so instantly makes me think more electrical, ignition switch or immobiliser?
In the old days Fiats had issues with the ignition switches, but I am talking about the 1970s.
When it settles and runs OK, does it try to stumble or die if you gentle wriggle the ignition switch key?

 

[waltieee]

I was going to say air in fuel , but the way it stops so instantly makes me think more electrical, ignition switch or immobiliser?
In the old days Fiats had issues with the ignition switches, but I am talking about the 1970s.
When it settles and runs OK, does it try to stumble or die if you gentle wriggle the ignition switch key?

Hello!
I think the problem is electrical too, the gas pump (pick-up from tank) appears to stop running, which is probably why the vehicle shuts off. (Maybe caused by some sensor?) I was thinking of bypassing the pump relay to see if the problem persists, but of course I don't have much time with work in the way
It appears to run fine when it idles, until it gets shut off, then it'll take you another many tries to get it back running (hence why it's been stopped) yes, I tried wriggling the ignition key but nothing changes!
Thank you!

 

[bugsymike]

Hello!
I think the problem is electrical too, the gas pump (pick-up from tank) appears to stop running, which is probably why the vehicle shuts off. (Maybe caused by some sensor?) I was thinking of bypassing the pump relay to see if the problem persists, but of course I don't have much time with work in the way
It appears to run fine when it idles, until it gets shut off, then it'll take you another many tries to get it back running (hence why it's been stopped) yes, I tried wriggling the ignition key but nothing changes!
Thank you!

I had an issue with a fuel pump relay on a 06 Grande Punto 1.3MJ, if I bridged the relay socket with a fused link for safety it ran , but I eventually traced that issue to a rotted wire that triggers the relay 10mm from the ECU.
May be wrong but I would have thought it would not die instantly from that fault as the fuel still in the high pressure pump would gradually run out over a few seconds.

 

[waltieee]

I had an issue with a fuel pump relay on a 06 Grande Punto 1.3MJ, if I bridged the relay socket with a fused link for safety it ran , but I eventually traced that issue to a rotted wire that triggers the relay 10mm from the ECU.
May be wrong but I would have thought it would not die instantly from that fault as the fuel still in the high pressure pump would gradually run out over a few seconds.

I'll check when I can, got to understand if they'll sell it to me first, then I'll do all the checks, wanted to buy it back from a family member since it belonged to my grandfather, plus it comes in handy with the huge amount of space in the back
what Ampere fuse should I use while bridging the socket? 10A?

 

[bugsymike]

I'll check when I can, got to understand if they'll sell it to me first, then I'll do all the checks, wanted to buy it back from a family member since it belonged to my grandfather, plus it comes in handy with the huge amount of space in the back
what Ampere fuse should I use while bridging the socket? 10A?

Probably 8amp will be enough it is just incase you accidentally short across anything.
Some people use a screwdriver type test tool that has a safety cut out that allows you to prove and put a positive or negative supply into a circuit safely.