Register Login
im Axle Specialists
Reply
 
Thread Tools Search this Thread
Old 20-04-2006   #1
Join Date: Apr 2006
Posts: 2
Thanks: 0
Trader Rating: 0
new ECU, flashing light, what is wrong??

Hi to everybody,

I have a punto 1.2 8v 2002, last week I had a failure of the ECU that caused the car to run on 2 cylinders. I drove it home slowly (about 10 km) and found that coils, wires, and plugs were all in order. The ECU light was solid on.

I did buy a brand new ECU which had exactly the same part number etc..I did also change the two coils, plugs and wires. just in case the failure on the ECU was due to some malfunctioning of any of these.

After installation of all this new equipment, the car started perfectly and now runs as required. The only thing is that the ECU light is now flashing. Some friend told me that the ECU needs to readapt and re-learn and hence I had to bring it to 6k revs a few times. So I did but the light is still flashing.

Some my questions:

-Is there anything else that needs to e done on a new ECU to stop this light to flash?
-could I have burned the catalytic converter in the few km i drove the car when it was running on two cylinders? I have doubts about this as the car runs very well and the light starts flashing right away after the car being turned on. I would argue that the ECU cannot figure out a faulty cat if not warm.
-any other ideas on what to check?

Many thanks for any help, I am reluctant to bring the car to the dealer as they tend to rip me off each time.

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

barabap is offline Reply With Quote Quote 
Old 20-04-2006   #2
Join Date: Feb 2006
Location: S.E London
Posts: 78
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: new ECU, flashing light, what is wrong??

yeh your ecu does need to relearn the charachteristics of the engine but if you dont have the red key i read somewhere that you wont be able to get rid of the light and in the worst case scenario it could not work all of the sudden due to the immobiliser feature in the ecu.
__________________
Simple dad say's to Sei Junkie "slow down".
Sei Junkie say's the chav hunter is just getting started!
Simple dad goes
SeiJunkie is offline Reply With Quote Quote 
Old 20-04-2006   #3
Join Date: May 2005
Location: FIX YOUR AIRBAGS
Posts: 1,723
Thanks: 104
Trader Rating: 0
United Kingdom 
Re: new ECU, flashing light, what is wrong??

OK the procedure you need to do is called phonic wheel learn, and basically your friend is right except for a few details.

The engine must be up to temperature (75 degrees plus), and the engine needs to be revved rapidly above 5000 revs and allowed to rev down on its own. The easy way to do this is just to stab at the throttle pedal and release it, the engine revs need to come down on their own so as soon as shes reached 5000 revs remove your foot completely from the throttle. This needs to be done three times in a row and provided you have done this correctly the light will stop flashing, switch the engine off and leave the ignition off for the power latch period (60 seconds) before restarting.

Numanr DET.
Thanks Abarthracer, Shadeyman, Fifibelle thanked for this post
Likes Young Punto Owner liked this post
__________________
"Every day, in every way, I get better and better"
NumanR is offline Reply With Quote Quote 
Old 20-04-2006   #4
Join Date: Apr 2006
Posts: 2
Thanks: 0
Trader Rating: 0
Re: new ECU, flashing light, what is wrong??

Thanks!
I did follow your precedure to the letter and IT WORKED.
Many thanks again
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

barabap is offline Reply With Quote Quote 
Old 20-04-2006   #5
Join Date: Aug 2003
Location: Essex/Suffolk border
Posts: 83,196
Thanks: 1466
Trader Rating: 10
dave has donated!
dave is an official FF Advertiser
dave is an honorary friend of the forum :)
United Kingdom 
Re: new ECU, flashing light, what is wrong??

nice one NumanR, thanks very much

oh SeiJunkie mk2 puntos dont have red key system
__________________
“The further a society drifts from the truth, the more it will hate those that speak it.”
dave is offline Reply With Quote Quote 
Old 21-04-2006   #6
Join Date: Feb 2006
Location: S.E London
Posts: 78
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: new ECU, flashing light, what is wrong??

i do apologise dave i thought puntos in general did, im sorry please dont get your cane out
__________________
Simple dad say's to Sei Junkie "slow down".
Sei Junkie say's the chav hunter is just getting started!
Simple dad goes
SeiJunkie is offline Reply With Quote Quote 
Old 25-04-2006   #7
Join Date: Apr 2006
Location: Derbyshire
Posts: 19
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: new ECU, flashing light, what is wrong??

mine had same problem with new ecu then the garage guy cained it to limiter a few times and it was fine

poor little 1.2 was screamin only a 8 v !
__________________
Punto 1.2 active sport in black, No mods looking at dials? any ideas ?
reedbradshaw is offline Reply With Quote Quote 
Old 25-04-2006   #8
Join Date: Apr 2006
Location: Hartlepool
Posts: 19
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: new ECU, flashing light, what is wrong??

hi mine has kind of the same prolem with the ecu. anyone any ideas what i shud do?

the ignigtion failure light is on and the cooling fan is constantly in. ECU replacement is apparently needed, but dunno how true this is.
Plus the replacement is to set me back £300 big ones.

anyone any ideas of what the problem might be and what a quick fix could be!

thanks for help in advance!
__________________
P6 WKR

Phil Walker
Punto_Phil is offline Reply With Quote Quote 
Old 26-04-2006   #9
Join Date: Aug 2003
Location: Essex/Suffolk border
Posts: 83,196
Thanks: 1466
Trader Rating: 10
dave has donated!
dave is an official FF Advertiser
dave is an honorary friend of the forum :)
United Kingdom 
Re: new ECU, flashing light, what is wrong??

Quote Originally Posted by Punto_Phil
hi mine has kind of the same prolem with the ecu. anyone any ideas what i shud do?

the ignigtion failure light is on and the cooling fan is constantly in. ECU replacement is apparently needed, but dunno how true this is.
Plus the replacement is to set me back £300 big ones.

anyone any ideas of what the problem might be and what a quick fix could be!

thanks for help in advance!
what punto you got?
__________________
“The further a society drifts from the truth, the more it will hate those that speak it.”
dave is offline Reply With Quote Quote 
Old 26-04-2006   #10
Join Date: Apr 2006
Location: Hartlepool
Posts: 19
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: new ECU, flashing light, what is wrong??

1.2 16v sporting (2001 - if that helps)
__________________
P6 WKR

Phil Walker
Punto_Phil is offline Reply With Quote Quote 
Old 26-04-2006   #11
Join Date: Apr 2006
Location: Hartlepool
Posts: 19
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: new ECU, flashing light, what is wrong??

nice rabbit by the way
__________________
P6 WKR

Phil Walker
Punto_Phil is offline Reply With Quote Quote 
Old 26-04-2006   #12
Join Date: Aug 2003
Location: Essex/Suffolk border
Posts: 83,196
Thanks: 1466
Trader Rating: 10
dave has donated!
dave is an official FF Advertiser
dave is an honorary friend of the forum :)
United Kingdom 
Re: new ECU, flashing light, what is wrong??

who said it needs new ecu? if it was just normal garage might be worth puting on the fiat dealer diag machine,
you tried the leave the battery disconected foar a while thing?
__________________
“The further a society drifts from the truth, the more it will hate those that speak it.”
dave is offline Reply With Quote Quote 
Old 26-04-2006   #13
Join Date: Apr 2006
Location: Hartlepool
Posts: 19
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: new ECU, flashing light, what is wrong??

It went of the diagnostics machine at 'FAST' fiat in stockton - fiat & alfa specialists. The guys didn't seem certain about the problem and said that it would be likely to be just a fault in the ECU - thus needing to be changed.
__________________
P6 WKR

Phil Walker
Punto_Phil is offline Reply With Quote Quote 
Old 24-05-2006   #14
Join Date: May 2006
Posts: 2
Thanks: 0
Trader Rating: 0
Re: new ECU, flashing light, what is wrong??

Hi,

I have a 1996 Punto 55SX, and just fitted a new ECU from www.atpelectronics.co.uk which is reconditioned and made independant of the immobiliser, so the red key isn't required. Only costs £200, instead of the £330 I was quoted from Fiat (plus labour was £520 which made the car an economic write -off).

I'm getting the same problem with the ECU. I phoned a bloke at ATP Electronics and he reckoned it could be the throttle sensor... is this right?

At the moment it runs smoothly, then the red nozzle light comes on and the rev counter goes all over the place and the car starts spluttering around. I'll try that high revving tonight.

Anyone know what else I should try to fix this problem, if revving like mad doesn't help?
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

nicemandan is offline Reply With Quote Quote 
Old 24-05-2006   #15
Join Date: Aug 2003
Location: Essex/Suffolk border
Posts: 83,196
Thanks: 1466
Trader Rating: 10
dave has donated!
dave is an official FF Advertiser
dave is an honorary friend of the forum :)
United Kingdom 
Re: new ECU, flashing light, what is wrong??

blocked injector or coil pack on its way out
__________________
“The further a society drifts from the truth, the more it will hate those that speak it.”
dave is offline Reply With Quote Quote 
Reply
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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) fuel economy the ecu light and other questions aja Punto (Mk1) 21 10-05-2015 18:50
how many forum users does it take..... gralegrrrrr Leisure Lounge 51 17-09-2007 14:40
(G) Warning light and boot light Boanerges Panda 48 23-05-2006 16:25
Die Hard!!! The Negotiator Leisure Lounge 27 24-04-2006 23:20
(T) ecu problem tally Punto (Mk2/2b) 1 07-12-2005 17:33