Register Login
im Axle Specialists
Reply
 
Thread Tools Search this Thread
Old 03-10-2015   #1
Join Date: Oct 2015
Posts: 13
Thanks: 0
Trader Rating: 0
United Kingdom 
Question Question about OBDII and loose wire

Hello everyone,

Recently got a 2006 Panda Diesel, 1.3 Multijet and last week the Engine warning light came on while driving.

I tried cleaning the 2 ECU connectors as recommended somewhere but light is still on..


Then I ordered an OBDII scan tool, a KONNWEI KW902 bluetooth module thinking that I could use it with the Torque app on my android tablet and check the Engine fault codes

The Scanner lights up and is detected in Torque app but it never connects to ECU..? any suggestions why?

also, whilst inspecting the engine I noticed a loose wire next to the coolant tank, it looks like this:

Click image for larger version

Name:	Fiat_wire_WEB.jpg
Views:	63
Size:	2.51 MB
ID:	160351

Click image for larger version

Name:	Fiat_wire2_WEB.jpg
Views:	40
Size:	2.63 MB
ID:	160352


Not sure if this is related to the warning light in the dash but where is this wire plugged?


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

tibrocks is offline Reply With Quote Quote 
Old 03-10-2015   #2
Join Date: Apr 2011
Location: Near the M4
Posts: 29,300
Thanks: 1157
Trader Rating: 0
varesecrazy has donated!
United Kingdom 
Re: Question about OBDII and loose wire

Quote Originally Posted by tibrocks View Post
Hello everyone,

Recently got a 2006 Panda Diesel, 1.3 Multijet and last week the Engine warning light came on while driving.

I tried cleaning the 2 ECU connectors as recommended somewhere but light is still on..


Then I ordered an OBDII scan tool, a KONNWEI KW902 bluetooth module thinking that I could use it with the Torque app on my android tablet and check the Engine fault codes

The Scanner lights up and is detected in Torque app but it never connects to ECU..? any suggestions why?

also, whilst inspecting the engine I noticed a loose wire next to the coolant tank, it looks like this:

Attachment 160351

Attachment 160352


Not sure if this is related to the warning light in the dash but where is this wire plugged?



Many thanks!
Hi, and welcome,
not done any work on a 1.3.. so can't assist there,

however the OBD socket should work as long as the ignition is on..,
so persevere.. or try another device in it..,

I use MultiECUScan ,
as it's the best for FIAT / Alfa vehicles within a sensible budget,
BUT have a 30 multi-car scanner too,


IF you're anywhere near Oxford.. you're welcome to have a demo.,

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

varesecrazy is online now Reply With Quote Quote 
Old 04-10-2015   #3
Join Date: Oct 2011
Posts: 108
Thanks: 8
Trader Rating: 0
Romania 
Re: Question about OBDII and loose wire

Don't know what the connector is for, but why is you coolant tank black - mine is transparent with pink fluid in it... Take a look in the coolant tank, if the liquid in it is black, I have some bad news for you...
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

dandt87 is offline Reply With Quote Quote 
Old 04-10-2015   #4
Join Date: May 2010
Posts: 2,476
Thanks: 330
Trader Rating: 0
Goudrons has donated!
United Kingdom 
Re: Question about OBDII and loose wire

I'm not 100% sure where that wires fits, but on looking at some images around the 'net it looks like it runs down the front of the engine down below - front of the oil filter housing.

So I would guess it might be the wire for the oil pressure switch which I believe is under the oil filter.

This might account for your engine light.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Goudrons is offline Reply With Quote Quote 
Old 04-10-2015   #5
Join Date: Jul 2014
Posts: 1,109
Thanks: 75
Trader Rating: 0
United Kingdom 
Re: Question about OBDII and loose wire

I think Goudrons is right.

It should run down under the front left of the engine. It is clipped twice - once at the base of the oil filler tube (yellow-capped tube by oil filter housing) and then below it on the engine block right beside the accessory drive belt - just visible looking straight down at the front left.
If you lie underneath, you should see the socket that this plugs into. If you thoroughly clean both plug and socket (your pic shows a very dirty plug), use electrical contact spray, and reconnect them, you should be on the right track to solving the problem.

My question would be why is it unplugged?
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides


Last edited by Sweetsixteen; 04-10-2015 at 16:25.
Sweetsixteen is offline Reply With Quote Quote 
Old 05-10-2015   #6
Join Date: Oct 2015
Posts: 13
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: Question about OBDII and loose wire

Thanks guys -

@varesecrazy - thanks, I do remember trying with the ignition switched on..
I will install MultiECUScan on my laptop..

but I'm thinking, the Bluetooth scanner itself does not connect to ECU (the tool has an 'OBD' LED that never lights up hence not communicating with the car?)

@dandt87 - yes indeed, the coolant tank is very dirty - what's the bad news?

@Goudrons and @Sweetsixteen thanks for your help rooting the wire.. it's indeed very dirty, I think I bought the car that way, the wire was loose behind the headlight..
I'll give it a clean and connect it back.


>>anyone had any experience with this KONNWEI KW902? can you recommend me a simple/cheap tool for reading the codes?


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

tibrocks is offline Reply With Quote Quote 
Old 06-10-2015   #7
Join Date: May 2010
Posts: 2,476
Thanks: 330
Trader Rating: 0
Goudrons has donated!
United Kingdom 
Re: Question about OBDII and loose wire

It's more than a worry if engine oil and diesel are found in the coolant system.
As diesels run such high compression, if the head gasket leaks on one it will empty the contents of the engine into the coolant system.

Usually it's quite a violent process, popping coolant pipes, blowing expansion bottles and splattering the engine bay, but a small leak will cause the coolant to turn black and oily a little slower.

A petrol car tends to leak the other way, allowing coolant into the cylinders/engine oil.

I have one of these
http://torque-bhp.com/wiki/File:Clone6.jpg
Ebay for a couple of quid.
I use it with an Android device like a smartphone or tablet which runs Torque Pro (from Google Play)
It reads all the generic engine DTCs on everything I've ever plugged it in to. Fiat, Jaguar, Pug, Citroen, VW, Land Rover, Afla.
You can turn off EMLs and scan and log most of the engine sensors.

It's small and handy to keep in the glovebox, as you usually have your phone with you most of the time.

If you're in London, I would happily scan the code for you if you can get the car to me.
Thanks martroy thanked for this post
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides


Last edited by Goudrons; 06-10-2015 at 07:01.
Goudrons is offline Reply With Quote Quote 
Old 06-10-2015   #8
Moderator
 
g8rpi's Avatar
Join Date: Nov 2013
Location: Cambridge
Posts: 4,448
Thanks: 449
Trader Rating: 0
g8rpi has donated!
United Kingdom 
Re: Question about OBDII and loose wire

Quote Originally Posted by tibrocks View Post
Thanks guys -

it back.


>>anyone had any experience with this KONNWEI KW902? can you recommend me a simple/cheap tool for reading the codes?


Cheers!
The KW902 should work according to the specification. Do you have access to another car to try it on? 3 possible issues,
1/ faulty interface (I don't know if the KW902 suffers from the ELM 327 120 ohm resistor issue)
2/ faulty car
3/ software or user error.
Another car MAY rule out 1 or 2. If you have a multimeter check the resistance between pins 6 and 14 on the KW902, if it is around 120 ohms (should be more than 500) the interface needs modification

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

g8rpi is offline Reply With Quote Quote 
Old 06-10-2015   #9
Join Date: Oct 2011
Posts: 108
Thanks: 8
Trader Rating: 0
Romania 
Re: Question about OBDII and loose wire

Well if it's dirty on the outside - that's fine. If it's black because of the liquid inside of it is black then you have oil in your coolant - maybe a head-gasket leak - check the coolant and the oil level.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

dandt87 is offline Reply With Quote Quote 
Old 08-10-2015   #10
Join Date: Oct 2015
Posts: 13
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: Question about OBDII and loose wire

Quote Originally Posted by Goudrons View Post
It's more than a worry if engine oil and diesel are found in the coolant system.
Quote Originally Posted by dandt87 View Post
Well if it's dirty on the outside - that's fine. If it's black because of the liquid inside of it is black then you have oil in your coolant - maybe a head-gasket leak - check the coolant and the oil level.
Yes, I'm worried about that as well.. I'll keep an eye on the levels and will probably replace the gasket soon..



Quote Originally Posted by g8rpi View Post
The KW902 should work according to the specification. Do you have access to another car to try it on? 3 possible issues,
1/ faulty interface (I don't know if the KW902 suffers from the ELM 327 120 ohm resistor issue)
2/ faulty car
3/ software or user error.
Another car MAY rule out 1 or 2. If you have a multimeter check the resistance between pins 6 and 14 on the KW902, if it is around 120 ohms (should be more than 500) the interface needs modification

Robert G8RPI.
I thought it should work too.. unfortunately I can't try it on another car... but will check the pins with a multimeter, that's a good point
@Goudrons would be good to try your scan tool - thanks!
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

tibrocks is offline Reply With Quote Quote 
Old 10-10-2015   #11
Join Date: May 2010
Posts: 2,476
Thanks: 330
Trader Rating: 0
Goudrons has donated!
United Kingdom 
Re: Question about OBDII and loose wire

Quote Originally Posted by tibrocks View Post
@Goudrons would be good to try your scan tool - thanks!
If you are near to me (SE1) you're welcome.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Goudrons is offline Reply With Quote Quote 
Old 10-10-2015   #12
Join Date: Oct 2015
Posts: 13
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: Question about OBDII and loose wire

Quote Originally Posted by Goudrons View Post
If you are near to me (SE1) you're welcome.
Thanks! just found out the Konnwei has the 120 ohm issue, mine measures 118 ohms between pins 6 & 14...

I'll try to replace it but if I don't manage I'll write you a PM to meet next weekend

I found the blue ones on eBay but there's version 1.5 and 2.1, which one works on Fiat and also on Diesel engine? can you check which one do you have?


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

tibrocks is offline Reply With Quote Quote 
Old 10-10-2015   #13
Join Date: Oct 2015
Posts: 13
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: Question about OBDII and loose wire

Hi again, I managed to read the fault code - P0401 - any suggestions with this?

Secondly, and much worse.. checked the coolant tank and has traces of oil in it.. what I feared most.. what else, apart from the head gasket could cause this?

what should I do next? if you have recommendations on how to proceed with this - to save time and money - would be greatly appreciated..

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

tibrocks is offline Reply With Quote Quote 
Old 10-10-2015   #14
Join Date: May 2010
Posts: 2,476
Thanks: 330
Trader Rating: 0
Goudrons has donated!
United Kingdom 
Re: Question about OBDII and loose wire

P0401 is an EGR problem.
(Exhaust Gas Recirculation)
This is a valve on diesels that allow exhaust gas to recirculate back around to the air intake when the engine is running in certain conditions (when running lean, like the over run), it reduces Nitrogen Oxides (as VW well know!)

A problem has been detected with the amount of exhaust flow through it.

It's a very common issue with diesels as diesel exhaust contains a lot of soot and also the engine crankcase breather plumbs into the air intake.
This leads to a cocktail of black gunk of engine oil vapour and soot that clogs up these valves.

You might be able to remove it and clean it out, but it is possible the motor that opens and closes it has failed.
You'll find the valve just before the inlet manifold, fitted within the air intake pipe from the intercooler and will have a small pipe running from the turbo/exhaust.
https://www.shop4parts.co.uk/?name=s...FULnGwodDHUCkA

I am not sure what to suggest in regards to the coolant.
As I wrote before, diesels tend to blow their head gaskets violently into the coolant system.
It might be worth draining out the coolant and flushing it out with a hose pipe, refilling and see what happens to the clean coolant before you strip the head.

Just a thought, does anyone know if the oil filter housing has a heat exchanger on it, and if so, does it use the engines coolant?
Perhaps the coolant and oil are mixing there??
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides


Last edited by Goudrons; 10-10-2015 at 17:04.
Goudrons is offline Reply With Quote Quote 
Old 10-10-2015   #15
Join Date: May 2010
Posts: 2,476
Thanks: 330
Trader Rating: 0
Goudrons has donated!
United Kingdom 
Re: Question about OBDII and loose wire

Quote Originally Posted by Goudrons View Post
Just a thought, does anyone know if the oil filter housing has a heat exchanger on it, and if so, does it use the engines coolant?
Perhaps the coolant and oil are mixing there??
Hmm, a quick look at a used oil filter housing on the 'net and it appears they do have a heat exchanger attached.
This might account for the loose wire you found, someone might have been messing with the oil filter housing.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Goudrons 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) Question about OBDII ovarb Bravo 9 24-04-2012 17:19
(G) loose wire tw51nks Stilo 1 28-06-2010 16:56
(T) help needed - have a loose wire jabs Punto (Mk1) 5 05-08-2006 21:47
loose wire on my bravo Chris267 FIAT Boo Archives 5 03-02-2006 17:12
loose wire? ben FIAT Boo Archives 2 30-01-2006 17:24