Alfa Romeo MITO P1062

Ask for and share advice on using the PicoScope kit to fix vehicles here.

Re: Alfa Romeo MITO P1062

Postby RYM6746 » Mon Aug 21, 2017 10:52 am

Managed to get voltage today not sure its going to help much. car was misfiring slightly in the capture. Channel B and C are still the current waveforms sorry forgot to change scale again. Channel A is the voltage of the suspect solenoid and channel D is the voltage of the good solenoid

Looking at it more closely I think I would have to use all 4 channels on voltage as it is clearly controlling the current flow by adjusting the voltage on both wires. Maybe this is how it is accurately producing the fault code. and it is running some sort of diagnostic strategy on every other turn on event??
Attachments
Alfa Romeo_Mito_2013_VVL solenoid voltage and current GOOD and BAD.psdata
(9.32 MiB) Downloaded 24 times
User avatar
RYM6746
TwoWaves
TwoWaves
 
Posts: 109
Joined: Tue Nov 01, 2016 10:58 am

Re: Alfa Romeo MITO P1062

Postby Martinjensen » Mon Aug 21, 2017 12:50 pm

Hi RYM.
A function description for the multiair system, can be found on Alfa E-Learn.

I think the ECU is looking at the missing V-shape of the current profile, and flags the P1062 Code
Attachments
2017-08-21 12_57_29-PicoScope 6 Automotive - [Alfa Romeo_Mito_2013_VVL solenoid voltage and current .png
Last edited by Martinjensen on Wed Aug 23, 2017 8:20 am, edited 2 times in total.
Martinjensen
OneWave
OneWave
 
Posts: 36
Joined: Wed Feb 13, 2013 8:22 pm
Location: Denmark

Re: Alfa Romeo MITO P1062

Postby RYM6746 » Mon Aug 21, 2017 8:19 pm

Brilliant information thanks very much. Exactly what I needed to confirm solenoid failure. Where did you source this from?
On the down side we are struggling to get the locking tool so we may not be able to see the job through to the end :(
User avatar
RYM6746
TwoWaves
TwoWaves
 
Posts: 109
Joined: Tue Nov 01, 2016 10:58 am

Re: Alfa Romeo MITO P1062

Postby STC » Mon Aug 21, 2017 11:24 pm

Rym

On the down side we are struggling to get the locking tool so we may not be able to see the job through to the end :(


That may not be such a bad thing - hold that thought.

Persuade your customer to let you supervise it in and out of the dealer for an admin fee. Present it to the dealer with your findings, scope traces, PDF from Martin, Print out of this thread if you wish...

You may find it impossible to find a dealer that will take that on, if you do then you have your customer covered every which way.

Technicians like you are thin on the ground and your customer may not find another in a lifetime !!!
You have diagnosed it - That is your job done !!
How many of your competitors in a 100 / 1000 mile radius can mimic that ???

Well done from me, you stuck to your guns and fought your corner with Passion, fact and Conviction :) :)
User avatar
STC
Banned
 
Posts: 790
Joined: Sun Sep 13, 2015 4:10 am

Re: Alfa Romeo MITO P1062

Postby Martinjensen » Wed Aug 23, 2017 8:17 am

you're welcome.

The information can be found at: https://www.technicalinformation.fiat.com
Descriptions > 10 ENGINE > 1036 TIMING > INTRODUCTION - TIMING SYSTEM
Martinjensen
OneWave
OneWave
 
Posts: 36
Joined: Wed Feb 13, 2013 8:22 pm
Location: Denmark

Re: Alfa Romeo MITO P1062

Postby RYM6746 » Wed Aug 23, 2017 11:30 pm

Thanks again every one for all your help and advice
User avatar
RYM6746
TwoWaves
TwoWaves
 
Posts: 109
Joined: Tue Nov 01, 2016 10:58 am

Re: Alfa Romeo MITO P1062

Postby STC » Thu Aug 24, 2017 11:44 pm

RYM6746 wrote:Thanks again every one for all your help and advice


I learnt a great deal here too - So thanks to all contributors :)
User avatar
STC
Banned
 
Posts: 790
Joined: Sun Sep 13, 2015 4:10 am

Previous

Return to Diagnostic discussion

Who is online

Users browsing this forum: No registered users and 1 guest