Register Login
The UK's No.1 Chrysler Owners Forum
Reply
 
Thread Tools
Old 11-02-2016   #1
Join Date: Nov 2013
Posts: 26
Thanks: 0
Trader Rating: 0
United Kingdom 
Angry Fiat Croma PAS Fail - Pump or ECU? Which to replace? Anyone help!?!

Hi all, I have been posting for a few days on this now but still no real joy......I have suffered the steering intermittantly dropping out for 2 years until last year I replaced battery, alternator, power cable to pump etc cleaned the pump terminals and now it looks like its dead for good.... i have been going crackers today!! I have been told there is a ECU on the steering column as well as one inside the body of the PAS pump, not sure which to look at first(not easy with no 4 poster ramp!)

My question is this - will the Vectra c PAS pump fit and work ok or will i need the ECU from column too?

Has anyone else replaced their PAS pump o experienced the same issues as me? I have spotted few Croma parts but LOADS of Vectra ones - here is the best one I found on ebay - http://www.ebay.co.uk/itm/2015090368...%3AMEBIDX%3AIT

& here is the Croma one (only one!!) - http://www.ebay.co.uk/itm/2916611828...%3AMEBIDX%3AIT

I cant find anything for the steering column ECU tho so if you guys know where please let me know!! Thanks again __________________
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

simonroscoe is offline Reply With Quote Quote 
Old 06-04-2016   #2
`
 
flisko's Avatar
Join Date: Jan 2013
Posts: 5,860
Thanks: 165
Trader Rating: 0
flisko has donated!
United Kingdom 
Re: Fiat Croma PAS Fail - Pump or ECU? Which to replace? Anyone help!?!

found your problem yet?
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

flisko is offline Reply With Quote Quote 
Old 06-04-2016   #3
Join Date: Apr 2011
Location: Oxford - UK
Posts: 15,770
Thanks: 547
Trader Rating: 0
varesecrazy has donated!
United Kingdom 
Re: Fiat Croma PAS Fail - Pump or ECU? Which to replace? Anyone help!?!

Quote Originally Posted by simonroscoe View Post
Hi all, I have been posting for a few days on this now but still no real joy......I have suffered the steering intermittantly dropping out for 2 years until last year I replaced battery, alternator, power cable to pump etc cleaned the pump terminals and now it looks like its dead for good...

I cant find anything for the steering column ECU tho so if you guys know where please let me know!! Thanks again __________________
the Italian remanufacturer , seems to be listing several now
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

varesecrazy is offline Reply With Quote Quote 
Old 06-04-2016   #4
Moderator
 
g8rpi's Avatar
Join Date: Nov 2013
Location: Cambridge
Posts: 2,391
Thanks: 187
Trader Rating: 0
g8rpi has donated!
United Kingdom 
Re: Fiat Croma PAS Fail - Pump or ECU? Which to replace? Anyone help!?!

Hi,
The Vectra C pump will NOT work. Mechnically and electrically it's the same but the firmware (built in software) is different and it won't interface with the Fiat systems. It would be interesting to compare the Croma and Vectra C units directly because it might be possible to transfer the chip that holds the firmware from the Fiat unit to the Vauxhall and make it work in the Croma. Without taking one to pieces it's hard to know what is possible.

Sorry to bring bad news.

Robert G8RPI.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

g8rpi is online now Reply With Quote Quote 
Old 06-06-2017   #5
`
 
flisko's Avatar
Join Date: Jan 2013
Posts: 5,860
Thanks: 165
Trader Rating: 0
flisko has donated!
United Kingdom 
Re: Fiat Croma PAS Fail - Pump or ECU? Which to replace? Anyone help!?!

Quote Originally Posted by g8rpi View Post
Hi,
The Vectra C pump will NOT work. Mechnically and electrically it's the same but the firmware (built in software) is different and it won't interface with the Fiat systems. It would be interesting to compare the Croma and Vectra C units directly because it might be possible to transfer the chip that holds the firmware from the Fiat unit to the Vauxhall and make it work in the Croma. Without taking one to pieces it's hard to know what is possible.

Sorry to bring bad news.

Robert G8RPI.
what about reading firmware from croma pump and putting it to vectra pump, then it should work in croma?
__________________
.
flisko is offline Reply With Quote Quote 
Old 06-06-2017   #6
Join Date: Oct 2014
Location: West Yorkshire
Posts: 783
Thanks: 20
Trader Rating: 0
United Kingdom 
Re: Fiat Croma PAS Fail - Pump or ECU? Which to replace? Anyone help!?!

It might be otp... so may need chip transplanting or a blank one programming... if its a balled chip, practially surface mount then probs not a good idea to mess with it.
__________________
Current car: 06 Fiat Stilo Sporting 150 Multijet
Past cars: 03 Stilo 1.2 Active 16v, 06 Focus 1.4 LS, 98 E36 323is, 97 Astra 1.6, 95 Astra 1.7 TDI, 95 Micra Super S, 96 Almera 1.6 GX, 94 Micra Super S, 97 Vectra 1.6 Envoy, 98 A4 1.8T Sport
dtimmins1985 is offline Reply With Quote Quote 
Old 06-06-2017   #7
Moderator
 
g8rpi's Avatar
Join Date: Nov 2013
Location: Cambridge
Posts: 2,391
Thanks: 187
Trader Rating: 0
g8rpi has donated!
United Kingdom 
Re: Fiat Croma PAS Fail - Pump or ECU? Which to replace? Anyone help!?!

Quote Originally Posted by dtimmins1985 View Post
It might be otp... so may need chip transplanting or a blank one programming... if its a balled chip, practially surface mount then probs not a good idea to mess with it.


However I have done such things before. I'm a professional electronics engineer and have the equipment to do this type of work at home. This includes surface mount rework, reading and programming memories and microprocessors.
If nyone wants to send me a Croma and a Vectra pump I'm happy to look at them and see what can be done.

Robert G8RPI.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

g8rpi is online now Reply With Quote Quote 
Old 06-06-2017   #8
Join Date: Oct 2014
Location: West Yorkshire
Posts: 783
Thanks: 20
Trader Rating: 0
United Kingdom 
Re: Fiat Croma PAS Fail - Pump or ECU? Which to replace? Anyone help!?!

I looked into this years ago when Nokia dct4 handsets came out as a certain chip on them that contained the imei was otp... managed to swap one over but killed about 15 handsets in the process - that was 3 grands of mobile phones back then lol...
__________________
Current car: 06 Fiat Stilo Sporting 150 Multijet
Past cars: 03 Stilo 1.2 Active 16v, 06 Focus 1.4 LS, 98 E36 323is, 97 Astra 1.6, 95 Astra 1.7 TDI, 95 Micra Super S, 96 Almera 1.6 GX, 94 Micra Super S, 97 Vectra 1.6 Envoy, 98 A4 1.8T Sport
dtimmins1985 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) putting in pas steering column + pas ecu to car without pas? flisko Punto (Mk2/2b) 0 08-11-2015 20:03
(G) Fiat Croma 1.9D '06 PAS faliure/ABS warning light/Glow plug fault simonroscoe Croma 52 06-03-2014 19:52
(G) how do you replace sidelight on 2005 fiat croma tcunningham25 Croma 3 19-05-2010 12:58
(T) Can you plug the PAS ECU into a different PAS unit? JayC Punto (Mk2/2b) 20 14-08-2009 16:26