Ecm?

Orgiswing · 20th February 2018, 15:23

Hello

My car still in degraded mode engine speed blocked at 1250 rpm.
That's what TOAF tells me before details:

+ 1255 - Pre-feed pressure sensor
+ 0190 - Rail pressure sensor
+ 0120 - Accelerator potentiometer
+ 1E60 - V f.pedal-tr power supply. , Rail pressure sensor, Pre-feed pressure sensor

The fact that it repeats to me the three breakdowns (sporadic or not) in 1E60 can it say that I have three at once? (Even if it surprises me)
Or would it be the engine ECU that is wrong?

Stickman · 20th February 2018, 15:40

It would seem like yr throttle potentiometer switch is possibly duff buddy
The other codes relate to fuel supply issues
A leakback test will determine yr next move
Regards
Chris

Mickyboy · 20th February 2018, 16:26

Pre supply fuel pressure is always littered in the ECM, your problem is throttle pedometer, if you need one just drop me a pm
Mick

trikey · 20th February 2018, 18:27

A broken throttle potentiometer wouldn’t bring a low fuel fault up.

marinabrian · 20th February 2018, 20:51

Quote:

Originally Posted by trikey

A broken throttle potentiometer wouldn’t bring a low fuel fault up.

P1260 is generated every time the fuel pump times out, and as long as the LP is circa 3.6 Bar with the engine running it'll be fine

This should help in terms of the wiring between the DDE4 ECM and the throttle demand pedal

This wiring should be checked for continuity before condemning the ECM, or the pedal itself

Brian

Orgiswing · 22nd February 2018, 07:10

Thank you for your answers.
I am re-hospitalized and therefore I can not do anything.
As soon as I can, I get back to it and I'll let you know.

20th February 2018, 15:23	#1
Orgiswing Newbie Rover 75 Join Date: Nov 2008 Location: North seaside Posts: 18 Thanks: 1 Thanked 5 Times in 3 Posts	Ecm? Hello My car still in degraded mode engine speed blocked at 1250 rpm. That's what TOAF tells me before details: + 1255 - Pre-feed pressure sensor + 0190 - Rail pressure sensor + 0120 - Accelerator potentiometer + 1E60 - V f.pedal-tr power supply. , Rail pressure sensor, Pre-feed pressure sensor The fact that it repeats to me the three breakdowns (sporadic or not) in 1E60 can it say that I have three at once? (Even if it surprises me) Or would it be the engine ECU that is wrong?

20th February 2018, 16:26	#3
Mickyboy SERVICING AND DEALER DIAGNOSTICS MG ZT CDTI 135 + & MGZT CDTI AUTO 160 & ROVER 75 TOURER CDTI 160 TROPHY YELLOW Join Date: Aug 2013 Location: Hernebay Posts: 4,331 Thanks: 818 Thanked 2,414 Times in 1,141 Posts	Pre supply fuel pressure is always littered in the ECM, your problem is throttle pedometer, if you need one just drop me a pm Mick __________________ [SIGPIC][/SIGPIC] T4 Owner Jobs done : new UBP, Spy hole mod, Rear hub(wheel bearing),plenum cleaned and emptied, Inline thermostat fitted,Full service, In car Digital tv/DVD Bluetooth Satnav etc, Replaced UBP, Restored headlights,Fixed airbag connection.replaced HP pump,replaced rear light seals,changed intercooler O rings. Jobs to do: ,replace drivers lock,.[/SIZE]

20th February 2018, 18:27	#4
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,774 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	A broken throttle potentiometer wouldn’t bring a low fuel fault up. __________________ Lest we forget..

20th February 2018, 15:40	#2
Stickman Posted a thing or two Rover 75 saloon Join Date: Nov 2012 Location: Bordon Posts: 1,856 Thanks: 250 Thanked 403 Times in 352 Posts	It would seem like yr throttle potentiometer switch is possibly duff buddy The other codes relate to fuel supply issues A leakback test will determine yr next move Regards Chris

22nd February 2018, 07:10	#6
Orgiswing Newbie Rover 75 Join Date: Nov 2008 Location: North seaside Posts: 18 Thanks: 1 Thanked 5 Times in 3 Posts	Thank you for your answers. I am re-hospitalized and therefore I can not do anything. As soon as I can, I get back to it and I'll let you know.