Technical Punto HGT won't start. Fuel pump? Also weird CODE warning light...

[D4nny8oy]

Yes, there is an interchanger but it doesn't work. That explains it then, thanks!

I'll get in touch with the parts dept. You seem fairly sure it's just a matter of getting the code, rather than replacing a unit? I hope you're right.

If you can get the emergency start-up procedure to work, it'll then prove if the code matches your Body Computer and Engine ECU or not. If it doesn't work, it then suggests one or more of the ECU's may have been swapped and finding their code near impossible- in which case, replacing the lot for a set that does work is the next viable solution.

It may still be worth getting someone to read the error codes to confirm there's nothing else preventing start-up, though.

 

[D4nny8oy]

I'm pretty sure that the Alfas avoid the crass stupidy of body ECUs, though.

Everything after the 147 has a Body Computer and CAN, without which, the amount of wiring through the car would be rediculous.

 

[Rsemblem]

Is this yours...............if not its the same problem

http://www.ebay.co.uk/itm/2001-FIAT...tomobiles_UK&hash=item33704f0a2b#ht_780wt_932

 

[gimmiemorefiats]

Is this yours...............if not its same the problem

http://www.ebay.co.uk/itm/2001-FIAT...tomobiles_UK&hash=item33704f0a2b#ht_780wt_932

Yup, that's the fella!

 

[gimmiemorefiats]

If you can get the emergency start-up procedure to work, it'll then prove if the code matches your Body Computer and Engine ECU or not. If it doesn't work, it then suggests one or more of the ECU's may have been swapped and finding their code near impossible- in which case, replacing the lot for a set that does work is the next viable solution.

It may still be worth getting someone to read the error codes to confirm there's nothing else preventing start-up, though.

I still can't get the emergency start-up to work. The engine warning light just doesn't do what it's supposed to, even when i pressed the throttle before turning the ignition on, as you suggested. Doesn't seem any point in spending the money getting the code if I can't input it anyway

A couple of days ago I ordered an OBD-II diagnostic tool, which arrived today. Plugged it in and it says 'Linking Error'. FFS!! :bang:

 

[Rsemblem]

I was going to pop over and have a look, then see it says its sold etc......

You local to me? If so is there anything from my car that can help to solve the problem? Mine an x reg tho, should be the same. If there is bit we can try or whatever?

 

[gimmiemorefiats]

I was going to pop over and have a look, then see it says its sold etc......

You local to me? If so is there anything from my car that can help to solve the problem? Mine an x reg tho, should be the same. If there is bit we can try or whatever?

That could be very helpful, thanks! I'm in Horsey, a bit north of you. I'll let you know if anything springs to mind, but I'm going away tomorrow for a few days. Is yours 2001? If it is it should be OBD-II compliant. Mine should be, but the code reader doesn't want to know...

 

[gimmiemorefiats]

Another observation:

There is a flashing light on the stereo. I believe this is normal? Does it rule out the immobiliser, or is the stereo security system completely unconnected?

Another question, following WhiteSei's suggestion:

If they are the right keys, but there is a fault with the immobiliser, should the remotes open the doors?


I think I'd better boil everything down cos this is getting a bit wordy!

- 2001 Punto HGT
- Engine turns but won't fire
- Code warning appears, but not the engine warning light - so code cannot be entered for emergency start-up.
- I don't have the code anyway.
- Two remote keys with the same codes engraved into them, and both flash red when the remote button is pressed.
- The remotes do NOT open the doors.
- The keys do NOT look brand new.
- The stereo has a flashing light.
- U480 diagnostic tool will not communicate (says 'Linking Error').

 

[RaulCarnahan]

Another observation:

There is a flashing light on the stereo. I believe this is normal? Does it rule out the immobiliser, or is the stereo security system completely unconnected?

Another question, following WhiteSei's suggestion:

If they are the right keys, but there is a fault with the immobiliser, should the remotes open the doors?


I think I'd better boil everything down cos this is getting a bit wordy!

- 2001 Punto HGT
- Engine turns but won't fire
- Code warning appears, but not the engine warning light - so code cannot be entered for emergency start-up.
- I don't have the code anyway.
- Two remote keys with the same codes engraved into them, and both flash red when the remote button is pressed.
- The remotes do NOT open the doors.
- The keys do NOT look brand new.
- The stereo has a flashing light.
- U480 diagnostic tool will not communicate (says 'Linking Error').

remotes are highly likely not programmed, I would think
also the keys may not look new but the metal parts could be. the rest of it might have been swapped over from the originals.

 

[D4nny8oy]

It looks like that car has been well messed about with- no air filter, no fusebox cover, looks like the head's been off at some point, etc.

Engine ECU must be connected as you say the EOBD lamp comes on and goes out during the self test. Next I'd be looking to see if the dash fusebox and Body Computer appear to have been disturbed/replaced. Do all the various lights and switches work ok?

It's going to be a slow and painful diagnosis without the ability to communicate with the Body Computer. You really need to get it to someone with a decent diagnostics machine who can properly read what's going on (Code requested, Code received, Startup enabled, etc) as error codes alone tell a very basic story. If it's a decent machine, you'll be able to enter the startup code through that and confirm if it's right or wrong.

 

[s and b]

It looks like that car has been well messed about with- no air filter, no fusebox cover, looks like the head's been off at some point, etc.

Engine ECU must be connected as you say the EOBD lamp comes on and goes out during the self test. Next I'd be looking to see if the dash fusebox and Body Computer appear to have been disturbed/replaced. Do all the various lights and switches work ok?

It's going to be a slow and painful diagnosis without the ability to communicate with the Body Computer. You really need to get it to someone with a decent diagnostics machine who can properly read what's going on (Code requested, Code received, Startup enabled, etc) as error codes alone tell a very basic story. If it's a decent machine, you'll be able to enter the startup code through that and confirm if it's right or wrong.

yep spot on answer,when i saw that picture from the ebay link i would have run a mile

 

[gimmiemorefiats]

yep spot on answer,when i saw that picture from the ebay link i would have run a mile

I've tackled worse! though admittedly i'm used to older vehicles. All the missing bits and any broken bits can be replaced cheapish, so i'm not yet put off.

D4nny8oy, how can you tell the head's been removed? Could have been a replaced gasket?? - service history is not comprehensive.

As for switches and toys, everything is working apart from the autochanger (can't work out how to input its code) and the remote locking.

I'm pretty certain the metal part of the keys aren't new. If you look really closely you make out where they've worn with use. Not massive or anything, but just enough to look used.

I'm going to try again to phone the seller of the diagnostic tool in the morning, but being a saturday... may have to wait til monday.

I'm also going to try to find the previous owner (before the breakers yard) to determine whether the keys were changed, or whether the fault developed by itself.

Thanks again for all your help. I'm learning loads! Any further ideas welcome, particularly on whether or not an immobiliser fault (or similar) could prevent the door remotes working?? If it couldn't, it certainly points the blame towards the keys.

 

[gimmiemorefiats]

Sorry, one more thing!

Both my keys are identical. They're both blue. Should one of them be red or something? Is this suspicious?

 

[fingers99]

Everything after the 147 has a Body Computer and CAN, without which, the amount of wiring through the car would be rediculous.

The wiring on a 155 (which is earlier that the 147) and on a Seicento (which is contemporary with the Mk2 Puntos) isn't particularly extreme. Folk who race Binis advise that the canbus carp accounts for 20kg of excess weight which can fairly easily be junked.

 

[fingers99]

Sorry, one more thing!

Both my keys are identical. They're both blue. Should one of them be red or something? Is this suspicious?

No. Or, at least, in my experience, all Mk2s come with 2 blue keys.

 

[mc6803]

I think your ECU doesn't have power. In my case Lancia Y, I found a wire disconnection between an ECU connector and a relay, which is turned on by ignition key.

 

[Rsemblem]

That could be very helpful, thanks! I'm in Horsey, a bit north of you. I'll let you know if anything springs to mind, but I'm going away tomorrow for a few days. Is yours 2001? If it is it should be OBD-II compliant. Mine should be, but the code reader doesn't want to know...

Thats not far really, like i say anything i can do to try and help out.

 

[s and b]

I've tackled worse! though admittedly i'm used to older vehicles. All the missing bits and any broken bits can be replaced cheapish, so i'm not yet put off.

youve misunderstood me
when i see a car in the state of the photo it makes me run because i know someone else has had their trotter in it and failed to fix it

good luck by the way i see you like a challenge

 

[gimmiemorefiats]

youve misunderstood me
when i see a car in the state of the photo it makes me run because i know someone else has had their trotter in it and failed to fix it

good luck by the way i see you like a challenge

To tell the truth, this is the first car I've tackled with an engine cover, so it didn't occur to me that there was one missing til after I'd bought it!

 

[D4nny8oy]

D4nny8oy, how can you tell the head's been removed? Could have been a replaced gasket?? - service history is not comprehensive.

I can't be certain, but classic signs like jubilee clips on the coolant hoses and a missing exhaust manifold heatshield (which would only really be removed if unbolting the manifold from the head) suggest it's had work.

The HGT's aren't common for doing headgaskets unless it's been driven without coolant. Therefore the most likely cause would be a failed cambelt causing valve/piston contact, or engine seizure due to lack of oil.

If it cranks over well and sounds like it's got decent compression on all 4, I wouldn't worry too much right now.