A non starting CDT - Page 3

rsr75 · 8th August 2007, 13:53

Keith,

Hopefully will be able to swap bits this afternoon, as for the inertia cutoff, I presume that is for shutting down the engine after a major bingle, this was only involved in a small one and has been driven quite a bit since. Q's if the inertia cutoff is set off, wouldn't this have been picked up when the guy with the professional code reader was hooked up? or is it a manual reset.

Many thanks;

Geoff G

Keith · 8th August 2007, 15:14

Quote:

Originally Posted by rsr75

wouldn't this have been picked up when the guy with the professional code reader was hooked up? or is it a manual reset.

Define professional? it may well be absolutely no use at all on our cars very few third party tools are except for very basic stuff

There are not any pump related diags on testbook other than the cumulative input form the LP fuel sensor and chances are the inertia switch just interrupts the power to the pumps or to their relay so the only possible fault code would be a LP fuel one.

rsr75 · 8th August 2007, 21:19

The guy that came has some sort of scan tool, big red & black box with whole lot of different modules + a laptop. He did admit that he couldn't diagnose all codes or reset them but.......

Anyway, checked the voltage outputs on the fuel sensors, the input @ rest with ignition off was about 6v on both, output about 1 - 1.5 v, With ignition on & pumps running between 4 - 6v; so presumably that checked out ok.

Next step is swap out the ECU & ignition system and see if it runs on a cloned system!

Regards, Geoff G

rsr75 · 9th November 2007, 14:41

Yes the clone approach worked, swapped out the ecu's and away she went, now for m next problem, how do I get a spare key......

Regards gg

Keith · 9th November 2007, 15:04

I assume from all your grief the existing key still works if so you need to go along with your V5 proof of ID etc and order one Lates can get them, obviously all dealers providing parts can as well
I expect any X part service centre can

You then need to get it coded to your car on Testbook.

FROGGY · 10th November 2007, 14:49

rsr75
I am very confused here.
After your initial checks on fuel flow, why did you jump to the ECU as the most likely problem area? Was this because of the error code? Also, how did you get your hands on a spare ECU to try?

Mick

8th August 2007, 13:53	#21
rsr75 Newbie Rover 75 Join Date: Aug 2007 Posts: 17 Thanks: 0 Thanked 0 Times in 0 Posts	Details on Inertia cutout Keith, Hopefully will be able to swap bits this afternoon, as for the inertia cutoff, I presume that is for shutting down the engine after a major bingle, this was only involved in a small one and has been driven quite a bit since. Q's if the inertia cutoff is set off, wouldn't this have been picked up when the guy with the professional code reader was hooked up? or is it a manual reset. Many thanks; Geoff G Last edited by rsr75; 8th August 2007 at 14:00..

8th August 2007, 21:19	#23
rsr75 Newbie Rover 75 Join Date: Aug 2007 Posts: 17 Thanks: 0 Thanked 0 Times in 0 Posts	Well he had some reasonable gear The guy that came has some sort of scan tool, big red & black box with whole lot of different modules + a laptop. He did admit that he couldn't diagnose all codes or reset them but....... Anyway, checked the voltage outputs on the fuel sensors, the input @ rest with ignition off was about 6v on both, output about 1 - 1.5 v, With ignition on & pumps running between 4 - 6v; so presumably that checked out ok. Next step is swap out the ECU & ignition system and see if it runs on a cloned system! Regards, Geoff G

9th November 2007, 14:41	#24
rsr75 Newbie Rover 75 Join Date: Aug 2007 Posts: 17 Thanks: 0 Thanked 0 Times in 0 Posts	The Final Update Yes the clone approach worked, swapped out the ecu's and away she went, now for m next problem, how do I get a spare key...... Regards gg

9th November 2007, 15:04	#25
Keith This is my second home ZT400 Join Date: Oct 2006 Location: Ellesmere Posts: 5,948 Thanks: 0 Thanked 43 Times in 29 Posts	I assume from all your grief the existing key still works if so you need to go along with your V5 proof of ID etc and order one Lates can get them, obviously all dealers providing parts can as well I expect any X part service centre can You then need to get it coded to your car on Testbook.

10th November 2007, 14:49	#26
FROGGY I really should get out more....... MG ZT CDTI Join Date: Sep 2007 Location: 17500 REAUX, CHARENTE-MARITIME Posts: 2,749 Thanks: 2 Thanked 133 Times in 90 Posts	rsr75 I am very confused here. After your initial checks on fuel flow, why did you jump to the ECU as the most likely problem area? Was this because of the error code? Also, how did you get your hands on a spare ECU to try? Mick