Technical doblo 1.3 2014 multijet wont start diesel

[Jakefeetham99]

fiat doblo 1.3 diesel multijet 2014 wont start. glow plugs fine, fuel filter and fuel lines coming in and out injectors fine. battery reading 12.6v turns over to MAR and when you try to fire it up it wont go. after waiting for the glow plug light to go out obviously. no codes showing on code reader.

 

[the green vanper]

Hello,

Is the immo light on or off on the dash?

Which code reader (interface and program) have you used?

 

[Jakefeetham99]

update its now started could be a faulty relay switch?

 

[Jakefeetham99]

update its now started could be a faulty relay switch?

its just a obd2 reader streetwise

 

[Jakefeetham99]

came up at short circuit cleared the codes now it starts

 

[the green vanper]

FIATs do not like the generic code readers. You cannot be sure if they are properly connected to all the modules, and thus if they can read the error codes.

Yes, it could be a faulty relay switch, it could be bad contact (oxidation), it could in fact be everything.

Glad it started

 

[clayts450]

Might be a faulty ignition switch. Or the old chestnut - a bad earth.

In terms of diagnostics, the £15 Chinesium OBD readers will only give you a generic fault, but it does at least give you an idea of what area of the engine is being troubled.

It's maybe worth investing in one of these OBD adapters:

https://www.amazon.co.uk/gp/product/B071D8SYXN

and (if you're on Android) getting this app which does read individual modules (ie not just generic OBD stuff)

Car Scanner ELM OBD2 – Apps on Google Play

Trip computer+car diagnostic tool with widest variety of features and dashboard!

play.google.com

It's a cheap way of diagnosing faults, and you get more accurate information about the faults. Of course, once you dabble in diagnostics you'll then find yourself getting MultiECUScan and delving deep into your Doblo's innards.

Car Scanner will show both OBD faults, and the relevant modules (in my case engine) together with the full Fiat powertrain code (the two numbers after the Pxxxx)

 

[the green vanper]

For around 35-40 EUR I bought my bluetooth STN1170 which is dedicated to FIATs and Fords and can connect to every module in the FIATs, including body, airbag, ABS, so allows me to do everything, including key programming, pneumatic suspension settings, proxy alignment etc.

 

[clayts450]

For around 35-40 EUR I bought my bluetooth STN1170 which is dedicated to FIATs and Fords and can connect to every module in the FIATs, including body, airbag, ABS, so allows me to do everything, including key programming, pneumatic suspension settings etc.

Uh-oh. Stop tempting me with more gadgets.... I already bit and bought the Otofix D1 Lite. You can never have too many gadgets.

I assume that works with MultiECUScan okay, and presumably whatever apps you want ?

 

[the green vanper]

Uh-oh. Stop tempting me with more gadgets.... I already bit and bought the Otofix D1 Lite. You can never have too many gadgets.

I assume that works with MultiECUScan okay, and presumably whatever apps you want ?

Yes. With MultiEcuScan on the windows laptop, with Torque and CarScanner on my android phone

And does not need any colour adapters

 

[varesecrazy]

update its now started could be a faulty relay switch?

RELAY... For what,

Starter motor or or fuelling?

 

[Jakefeetham99]

Update* used the code reader app and changed the relay fuse now starts first time.

 

[varesecrazy]

Update* used the code reader app and changed the relay fuse now starts first time.

Which relay.. To what..?