Register Login
iNETFX Domain Registration - COM/NET/ORG £6.50 a year!
Reply
 
Thread Tools
Old 6 Days Ago   #1
Join Date: May 2018
Posts: 5
Thanks: 0
Trader Rating: 0
United Kingdom 
Non starting 1994 punto 1.2

Hi all,

After some advice if at all possible?
My mum has a 1994 punto 1.2 elx that broke down the other day... it cut out and refused to start and she was recovered home.
So... A few weeks ago it also wouldn't start, I checked the crank sensor it was oily, A quick clean and it started.
I suspected this again so I replaced it but still nothing.
Looking further there is no spark at any plug, the fuel pump isn't priming and the red injector light that usually comes on for a few seconds isnt.(plugs also dry)
No blown fuses anywhere.. checked glovebox, by ignition switch and the 2 attached to the bulkhead. No obvious wiring damage,

I'm thinking the ecu is dead? Or is there something else I'm missing?

Thanks in advance

Mark
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Ada503 is offline Reply With Quote Quote 
Old 6 Days Ago   #2
Join Date: Oct 2009
Posts: 312
Thanks: 19
Trader Rating: 0
renaultvation has donated!
United Kingdom 
Re: Non starting 1994 punto 1.2

It could be a couple of things, one being the ecu. First I would check the ignition relays.
You say it is a 94 ELX with a 1.2 engine. I thought a 94 ELX would have a 1.6 engine, but I don't doubt you. The reason I mention it is that the 1.6 has its ecu mounted behind the dash under the heater matrix and when (not if) that leaks, it will drip onto the ecu and cause damage. The solution is one of prevention, putting the ecu in a sealed plastic band with silica gel for good measure. If you have a 1.2 your ecu will be under the bonnet. Is there any chance that it could have got wet?
Thanks Ada503 thanked for this post
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

renaultvation is offline Reply With Quote Quote 
Old 6 Days Ago   #3
Join Date: May 2018
Posts: 5
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: Non starting 1994 punto 1.2

Hi thanks for the reply,

No the ecu is on the drivers side front wheel arch inner(I presume this is correct? No I don't think so it's been hot the last week here no puddles... it's certainly dry now... it's a 75 elx 1.2. Which are the ignition relays?

Thanks

Mark
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides


Last edited by Ada503; 6 Days Ago at 21:13.
Ada503 is offline Reply With Quote Quote 
Old 5 Days Ago   #4
Join Date: Oct 2009
Posts: 312
Thanks: 19
Trader Rating: 0
renaultvation has donated!
United Kingdom 
Re: Non starting 1994 punto 1.2

That all sounds correct. I am not familiar with the layout of the 1.2 engine, but on mine they are located under a plastic cover held on with two screws at the rear of the engine bay, fixed to the bulkhead.
Thanks Ada503 thanked for this post
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

renaultvation is offline Reply With Quote Quote 
Old 5 Days Ago   #5
Join Date: May 2018
Posts: 5
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: Non starting 1994 punto 1.2

Thanks I shall try and replace that relay next. There is one big white one behind the 2 fuses... this sound correct?

Mark
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Ada503 is offline Reply With Quote Quote 
Old 5 Days Ago   #6
Join Date: May 2018
Posts: 5
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: Non starting 1994 punto 1.2

Just a thought, although there is no spark or fuel The engine is turning over on the starter, could it still be the relay?

Thanks
Mark
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Ada503 is offline Reply With Quote Quote 
Old 5 Days Ago   #7
Join Date: Oct 2009
Posts: 312
Thanks: 19
Trader Rating: 0
renaultvation has donated!
United Kingdom 
Re: Non starting 1994 punto 1.2

I have just checked the manual and it appears that the relays on yours are in a completely different position from mine. It is listed as being at the rear of the fuse box. Yes the engine will still turn over even if the relay is not working.
Likes Ada503 liked this post
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

renaultvation is offline Reply With Quote Quote 
Old 4 Days Ago   #8
Join Date: May 2018
Posts: 5
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: Non starting 1994 punto 1.2

So after checking the relays which were okay I went under the bonnet again to check the big relay under the black cover, and I could hear a faint sparking, and then the fuel pump primed... under the black cover the small 5a fuse was arcing out... Not blown... replaced it and she started!
Thanks for your help and advice much appreciated

Mark
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Ada503 is offline Reply With Quote Quote 
Reply
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump
Similar Threads
Thread Thread Starter Forum Replies Last Post
(T) 1994 Punto nick1966 Punto (Mk1) 1 16-03-2010 00:59
(T) Late 1994 2.8jtd starting problem DABurleigh Ducato 3 05-04-2009 22:16
(T) 1994 1.2 SX MPi NOT STARTING..... ABRecovery Punto (Mk1) 3 07-03-2007 19:25
(G) 1994 75SX Not Starting Problem! FixItAgainTodayYep Punto (Mk1) 3 30-10-2006 20:37