General Ducato code problem

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General Ducato code problem

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Re: Dicato code problem

Hi to everyone in broken Fiat land. I joined the forum for exactly the code problem. I have researched using two brilliant guys for guideance; Many thanks Andy Hickling and Diesel Bob.

Now for what its worth, is my opinion, which you are entitled to!
Its all down to the immobilisor, Not the key, Not the ignition lock, Not the aerial, Not the black box or even the ECU. Its down to that Bl**dy solenoid in the back of the fuel injector pump. You can't get at it without breaking bits off you can't replace it without buying a new pump. My van was 100% reliable until it would not start one afternoon, since then the code light comes on when it feels like it on second and subsequent startups. Usually starts ok first thing in the morning but not always.

My theory, The solenoid gets sticky through being blasted with road dirt which WILL find its way in, one day it does not move any more. if it cant send a signal back to the ECU telling the ECU its working the system assumes its been tampered with and flags up the code waring light. Thats what its suposed to do, oh by the way the engine won't start because the solenoid is stuck and wont let the fuel through any way.
My cure;
Blasted lots of WD40 into any cracks and wiring holes next to the three leads. Turn on the ignition, then go under the bonet and disconect a battery lead. You will hear a click from the fuel solenoid next to the battery. touch the battery connection with the lead you will hear the fuel solenoid again, ignore this and listen for a quieter click from the solenoid at the back of the injector pump. repeat this again and again. All I heard at first was a faint buzz but after about 50 repetitions the solenoid began to click once more. If you attach the battery cable once you have heard the click (friction will do dont tighten it yet) go inside the cab you will find the code light has gone out.
I repeated this over about three days and all is well. I still lubricate the solenoid regularly.
If all this sounds boring try counting down the number of times you touch connect the battery, starting at 900 cos thats how many pounds Fiat are going to charge you to replace the pump. Doesn't seem so bad now huh!(y)
 
Re: Dicato code problem

new kid on the block said:
If all this sounds boring try counting down the number of times you touch connect the battery, starting at 900 cos thats how many pounds Fiat are going to charge you to replace the pump. Doesn't seem so bad now huh!(y)

My point is dear 'new kid on the block' is Fiat rarely charge you £900(as you stated)as they normally just bypass the pump.My comment is a addition to your post,not a critism,or cheeky remark but purely a factural addition.

p.s.i'm a atheist.
 
Re: Dicato code problem

Phew that's one thing in common then.
Why all the bypassing and mention of £200 or even £50? you can by a new electronic block for £105-£135 and you don't have to buy an imobiliser and have it fitted etc. Not to mention telling your insurance company you have imobilised your imobiliser.
 
Re: Dicato code problem

Can the immobiliser in a fuel pump on a 1997 diesel punto be bypassed? I've been quoted £350 for fiat to change it for me due to key code problems, it's £350 I don't have:mad:
 
Re: Dicato code problem

new kid on the block said:
Phew that's one thing in common then.
Why all the bypassing and mention of £200 or even £50? you can by a new electronic block for £105-£135 and you don't have to buy an imobiliser and have it fitted etc. Not to mention telling your insurance company you have imobilised your imobiliser.

Customer is given options,up to them which one they choose.

In most cases insurance/security hardly comes into it as most of these vans are double glazing/gardening/DIY types with 185,000 odd miles on them,you know the types with busted door locks & clasps/padlocks insteard,4 months old newspapers on the floor,half eaten rolls in door pockets etc...not exactly a thiefs target unless they are looking for a particular kind of fungi.
 
Re: Dicato code problem

Hi, I don't know, but I do know its not usually the pump its the electronic bit on the back. so it probably can be bypassed or changed. wait for a reply from someone with more knowledge of punto's
 
Re: Dicato code problem

I had the same problem with my immobilsor on my Fiat 2.8 Ducato year 2000,van would start OK went for fuel the the immobilsor woud`nt go off.
A real pain in the arse,went to local Diesel garage and they bypassed it for £45,no problems since.
Local Fiat garage tried to sell me new key code box etc for huge sums of money.
 
Re: Dicato code problem

Quite often it is the code box (around £80) & it can often be tricky to diagnose between the two (pump & codebox) and code box is often the easiest option however £45 is good.
 
Re: Dicato code problem

Hi NewkidontheBlock

In my case I owned a Ducato motorhome so paying for a Cat1 alarm after the solenoid was'fixed' was a bargain, especially when the local Fiat dealers would touch it except to replace the whole system.

If you have the solenoid done then you know its reliable!!!

Simon:)
 
Ah yes Simon, I have bypassed my pump. Only the other day as became unreliable again.

Just a note though, it did not involve smashing anything off, just pryed off the lid. The circuit board is mounted in silicon so scrapped it off and cut the middle wire and soldered in a piece to the soleniod. Re set the board in neutral cure silicon and popped the lid back. Now 100%

Only thing I wished I had done, Not cut the middle wire just bared the insulation and soldered the new wire to it. I have a feeling this would prevent the code light comming on.

Ah well next time.
 
T14086, I,m too busy to worry about lights on at the moment. I am more bothered by lights out! Any pearls of wisdom about removing the clear plastic cover for the interior lights?
I have gently tugged in all directions but it doesn,t want to come off...
 
Hi chickiboy

Your a an absolute star followed your instructions broke the plastick away on injection pump conected middle wire and haypresto it starts and runs fine no code key light any moor no moor geting ripped off. thear is alot of people having this problem i have been every were trying to get information on this and its like banging your head against the wall.and you get so much bad information. your an absolute WINNER thanks again regards Tony.
 
Hi had the same problem, Had the box of tricks cut off, cost 100€.
Had a Cobra anti theft fitted[ {for insurance cover} alls well

The cost of going back to Fiat original is very high here in France, and they are always giving trouble.
regards Brian
 
Hello
I have a Ducato 2.3jtd 2002 with bosch common rail
injection- Does this code box problem apply to this
model?
My van fired up one morning just as normal drove 50 metres then
just cut out and hasn't started since.Everything was perfect before
that and it never missed a beat so I'm suspecting an electrical shut off
rather than a slow demise of the high pressure pump or injector

I can't find much technical info on this engine-I bought a disc
from ebay which wasn't much use and another from electronic manuals
which hasn't turned up yet.
The OBD apparently doesn't play ball with normal software as it's before
2004.
It has been suggested that the lift pump is faulty so we checked this and it
makes 10 psi in flow and return mode and builds a lot of pressure when it's flow is restricted.
There is a funny irregular buzzing noise coming from behind the timing belt cover which whatever this is runs on the same power circuit as the lift pump.

Any ideas on this ?
 
Sorry Duke, can't help with your problem but wanted to thank you for resurrecting thread, after reading it all, the setup on my van ('95 2.5 TDi) now makes sense.

The three wire plug to injection pump only has one wire connected so the solenoid mod described above must have been done by one of the 4 previous owners. I recently had an unrelated electrical problem (mentioned further down the forum) and it turned out that the ignition switch has no code reading aerial either.

I guess then that the whole Fiat system has been dumped and replaced by the after market Cobra alarm, which at least has the benefit of the wires being traceable and replaceable.

Anyway to come back to the stop solenoid, yet another unrelated electrical problem meant that I tried starting and stopping engine several times in quick succession; after about five cycles I found that the engine wouldn't stop for several seconds after turning off key; when this happened there was about 0.93 volts on the wire feeding the stop solenoid.

I've no idea if this always has been the case, as normally you'd just switch off the once and it would work fine, all I can think off is that the repeated energising of the solenoid is building up some sort of back EMF in the windings which is holding it on for a little while :confused:
 
Had exactly the same problem with my year 2000 Fiat 2.8 Ducato,immoblisor was a pain in the a###.
Local Fiat garage did not have a clue,took it too a Diesel specialist,and they
bypassed the the immoblisor by doing as has been mentioned,cost £45.
:)
 
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