Punto (Mk2/2b) engine fault codes u 102 and p1135

[mickvall]

Hi all.
New to this site. Well have posted once before a few months back. Had problem with car stalling when coming to stop . Had fault code for map senor then so changed that but still had fault. Was also told could be air getting in through oil breather pipe. Had small split in that so was changed and also cleaned out throttle body as was also mentioned that this could be cause of stalling. It was mingin by the way. Well all in all this seemed to solved that problem
Had no problems for about 6 weeks but engine management light came back on other day. Came up again with map senor. was reading up this site to try resolve and found about map sensor relearn. Well did this and that cleared eml. Light came back on after half hour driving. Checked codes and came up with u1702 and p1135. Also noticed that when I was checking codes this time the abs light was flashing and power steering light was on....??? . My code reader just comes up with manufacturer controller for the above codes. Having read up on this site p1135 is pre cat lambda sensor and u1702 is something to do with canbus????
All seems a bit confusing to me. Don't want to be changing more sensors for no reason. Heard lambdas are not cheap if your using genuine replacement. Can all this be due to some wiring problems. Have heard the "dreaded d4 connector " mentioned. Could this be linked to flashing abs light and power steering light???
Any info or help would be gratefully appreciated
Thanks. Mick v

 

[homeward]

Could this be linked to flashing abs light and power steering light???

What state is your battery in?

The best way to find out is to have it properly drop-tested at your local factors; but a multimeter will give an indication -- firstly, at rest; secondly, with the engine fired up; and thirdly, with everything you can think of switched on (e.g. lamps, fan, radio...).

The reason I ask it that a failing battery often causes PAS problems; and then other funky stuff starts happening... -- and it wouldn't surprise me if this was the case.

The lambda fault may well be that it's about to die, or the pre-heater element in it has failed/is failing... -- which means, if you have two lambdas, and they're the same age, the second may follow suit. It could also mean the cat is starting to go -- but, if you do have two lambdas, see if you can swap them over (although they can feel like they've welded themselves in...); clear the faults, and see what happens.

BTW: what mileage is your car; how old; and what engine (e.g. 1.2 8v or 16v, etc.)? :chin:

 

[mickvall]

What state is your battery in?

The best way to find out is to have it properly drop-tested at your local factors; but a multimeter will give an indication -- firstly, at rest; secondly, with the engine fired up; and thirdly, with everything you can think of switched on (e.g. lamps, fan, radio...).

The reason I ask it that a failing battery often causes PAS problems; and then other funky stuff starts happening... -- and it wouldn't surprise me if this was the case.

The lambda fault may well be that it's about to die, or the pre-heater element in it has failed/is failing... -- which means, if you have two lambdas, and they're the same age, the second may follow suit. It could also mean the cat is starting to go -- but, if you do have two lambdas, see if you can swap them over (although they can feel like they've welded themselves in...); clear the faults, and see what happens.

BTW: what mileage is your car; how old; and what engine (e.g. 1.2 8v or 16v, etc.)? :chin:

Hi.
Thanks for the reply homeward. The battery seems to be in good nick. Car starts first time every time. Another strange one was when I started car up yesterday got radio flashing up needing code in it!!!! Then back to normal when I started it up again after been to shops!!!! So could be fault with battery????
The lambdas look like they've been in a while so could be original from manufacture so could be on way out. Will try the swap thing.
Car is 1.2 16v on 53 plate with 97k on clock.
Cheers

 

[Ziggy122]

i accepted it to be normal for the standard stereo wanting the code

As depending on your last drive, the battery wasn't always fully recharged
when you crank - which is some serious amperage, the stereo gets ""starved"" of power, and resets

When it reset = please tell me everything is okay

Ziggy

 

[varesecrazy]

mickvall,

Hi, could be worth cleaning the battery terminals.., a poor connection at your powers "source" will have all kinds of weird results ; -)

charlie

 

[homeward]

Thanks for the reply homeward. The battery seems to be in good nick. Car starts first time every time. Another strange one was when I started car up yesterday got radio flashing up needing code in it!!!! Then back to normal when I started it up again after been to shops!!!! So could be fault with battery????

As you'll see from varesecrazy's and Ziggy122's replies, it certainly looks that way.... Only a proper test will confirm; but I'd be looking at getting a new one, myself (a Bosch S4 will set you back about £40 with free postage, from eBay...) -- especially if you don't know when it was last changed.

The lambdas look like they've been in a while so could be original from manufacture so could be on way out. Will try the swap thing.
Car is 1.2 16v on 53 plate with 97k on clock.

The "swap thing" is to try and isolate the fault -- especially as the first one is a lot more active (or should be) than the second (and, therefore, in my tiny mind, is liable to 'wear out' first...!?). In an ideal world, the fault will move with the sensor: making for an easy diagnosis.

However, my 16v is of a similar age and mileage to yours, and my lambdas -- starting with the top one -- both started to misbehave, a while back. I ended up changing both of them: only to discover the manicat also needed changing, shortly afterwards.

If you end up doing the same, a good make of lambda is going to cost you £40 to £60 each; and a manicat anywhere from £100 to £200 (depending on make and seller). However, discounts are available to (donated?) Forum members from Shop4Parts, Partsworld-UK or Big Mick (my hero!) at Eurocarcare.net -- see the Member Offers section. In fact, if you email/Skype/phone Big Mick with your VIN or reg. number, he might even make you up a virtual shopping trolley with all the parts you need in it...!


PS: If you can get hold of something like multiecuscan (MES), and the correct leads, you'll be able to get a better diagnosis; as well as a better understanding of any codes. Live data will also show you what your lambdas are doing -- which should be the first one's voltage spiking like crazy (once the car is warmed up; and the system is on a closed loop); and the second one having a very easy time of things... -- what I like to think of as the Lambda Lambada....

FYI: this is how my (new) lambdas looked before the manicat was changed (see the bottom two lines of the graph on each piccy...)



...and afterwards (i.e. now...)

 

[mickvall]

Hi guys
Cheers for all the responses. Will probably just change battery as it looks as though ifs been in there a while. Will probably go down same line with cat and new lambda sensors. Hopefully that will solve the problems.
Thanks homeward for info about discounts available to members but my brother works for a well known auto parts dealer, a blokes name beginning with A and the leaf of a book!!!! Haha. Hope I'm not breaking any advertising rules here!!!! Get a very good discount there so that will save a few quid.
Thanks again
Mick v

 

[homeward]

...my brother works for a well known auto parts dealer, a blokes name beginning with A and the leaf of a book!!!!

Jammy so-and-so...!

I'll have to marry the homewardette off to someone at our local factors...! :devil:

 

[mickvall]

Haha. I'm sure she'll be well pleased at hearing that.