Injection problem with ecu

Gotta love that wiring . . .
Kev1806
Posts: 7
Joined: Thu Mar 01, 2018 1:41 pm
Your car is a: 1981 pininfarina 124 spider injection

Injection problem with ecu

Postby Kev1806 » Fri Mar 02, 2018 1:41 am

Hi all,

I am new here, I have a 1981 Fiat 124, 2000 injection (American model). This car was bought from Germany and shipped to Malta, however after a few weeks of enjoying her the car just died and haven't managed to start again.

The engine would start for a couple of seconds on the cold start injector, however would not fire up on the remaining injectors.

I have done a technical check with a test light on all pinouts of the ECU connector and in the past point of the troubleshooting test it said replace ecu.

Can you please advise if you thing that the ECU could be repaired ? Any suggestions where I should send it, preferably in Europe. Or can you advise when I can find refurbished units or new old stock?

Any help would be appreciated as the car has been sitting here for 6 months. :(

ECU is bosch jetronic 0 280 000 190

Any other suggestions on find a solution would also be appreciated.

Kind regards.

zachmac
Posts: 1278
Joined: Sun Aug 24, 2008 9:20 am
Your car is a: 1978 Spider [1979 2 ltr engine]
Location: Aiken, SC

Re: Injection problem with ecu

Postby zachmac » Fri Mar 02, 2018 4:37 am

RARELY do the ECUs fail. Typically it is the dual relay that is bad.Check that first as it is a lot easier to obtain and cheaper.
Jeff Klein, Aiken, SC
1980 FI Spider, Veridian with Tan (sold about a year ago), in the market for another project
1989 Spider, sold
2008 Mercedes SL65
2008 S600 Mercedes V12

Kev1806
Posts: 7
Joined: Thu Mar 01, 2018 1:41 pm
Your car is a: 1981 pininfarina 124 spider injection

Re: Injection problem with ecu

Postby Kev1806 » Fri Mar 02, 2018 4:57 am

Thanks for your reply :)

Yes that was my mechanics first thought however we tried connecting the ECU with another Fiat 124 exactly like mine and it had exactly the same symptoms, and didn't run.

So we are quite sure it's the ECU that has a problem.

More help on the matter would be appreciated.

Thanks.

spider2081
Patron 2024
Patron 2024
Posts: 2967
Joined: Fri Jan 27, 2006 11:45 pm
Your car is a: 1981 Spider 2000
Location: Wallingford,CT
Contact:

Re: Injection problem with ecu

Postby spider2081 » Fri Mar 02, 2018 6:52 am

however we tried connecting the ECU with another Fiat 124 exactly like mine and it had exactly the same symptoms, and didn't run.


Have you tried a known good ECU in your car to be sure it will run??

You might try posting your need for the ECU in the Car/parts wanted section of this site.

Kev1806
Posts: 7
Joined: Thu Mar 01, 2018 1:41 pm
Your car is a: 1981 pininfarina 124 spider injection

Re: Injection problem with ecu

Postby Kev1806 » Fri Mar 02, 2018 6:58 am

No I haven't tried using the ecu that worked on the other car as the owner didn't want me to take his ECU. :P

Thanks for the suggestion. I shall post on the other part of the site.

Regards.

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rlux4
Patron 2022
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Posts: 4211
Joined: Thu Jan 10, 2008 8:32 pm
Your car is a: 1982 2000 Spider
Location: Granite Falls, Wa

Re: Injection problem with ecu

Postby rlux4 » Tue Apr 10, 2018 8:01 pm

Is your fuel pump running when the engine is cranking?
instead of building a new fuse panel when FI came Fiat just added an extra inline fuse to the fuel pump circuit. On my car the factory fuse holder was not making contact with the fuse consistently and it would die suddenly, or not start, so I replaced it with a normal AGC inline fuse holder; problem solved.
Plus, I've done diagnostics on my ECU and dual relay at times when the diagnostics showed a replacement was needed when it turned out it wasn't.
Ron
Ron Luxmore
rlux2n2@gmail.com
'82 2000 Spider: after 26 years between Spiders.

FiatFan
Posts: 14
Joined: Wed Apr 25, 2018 6:24 pm
Your car is a: 1981 Fiat Spider 2000

Re: Injection problem with ecu

Postby FiatFan » Fri Apr 27, 2018 1:14 pm

rlux4 wrote:Is your fuel pump running when the engine is cranking?
instead of building a new fuse panel when FI came Fiat just added an extra inline fuse to the fuel pump circuit. On my car the factory fuse holder was not making contact with the fuse consistently and it would die suddenly, or not start, so I replaced it with a normal AGC inline fuse holder; problem solved.
Plus, I've done diagnostics on my ECU and dual relay at times when the diagnostics showed a replacement was needed when it turned out it wasn't.
Ron

What tells you a replacement is needed?


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