CDTi Engine failure to start

[trikey]

Originally Posted by MarkS

I'll see if I can find some wet bailer twine ???

I had the same issue when I bought a non starting diesel, Brian gave the same diagnosis and was soon repaired using a length of orange wire, ever since then this issue is known as the 'orange wire fix'

[MarkS]

Is the break more likely to be at the fuse holder, the ECU connector, or something in-between ?

[BigRuss]

It may be as simple as corrosion in the connectors of the underbonnet fuse box.

If you undo and lift the fuse box then unlatch and replace them all a couple of times it might do the trick.
I've had quite a few non starters over the years with this problem, the most recent last week

While you're in there you could also check continuity between there and the ECU and inspect the wiring for any damage

Russ

[LButler91]

Have you checked fuses? After my cdti failed to start and was diagnosed with hp pump failure, it was all changed but still didn't start. Found tye engine management fuse had dissappeared. Yours maybe blown or missing?
It's a long shot but my ztt cdti was parked up on drive and then came to it after few hours and would tick but refused to start

[MarkS]

Originally Posted by LButler91

Have you checked fuses? After my cdti failed to start and was diagnosed with hp pump failure, it was all changed but still didn't start. Found tye engine management fuse had dissappeared. Yours maybe blown or missing?
It's a long shot but my ztt cdti was parked up on drive and then came to it after few hours and would tick but refused to start

As detailed in #9, all fuses in the engine fusebox have been removed and inspected. But thanks anyway for saying it

[MarkS]

Originally Posted by BigRuss

It may be as simple as corrosion in the connectors of the underbonnet fuse box.

If you undo and lift the fuse box then unlatch and replace them all a couple of times it might do the trick.
I've had quite a few non starters over the years with this problem, the most recent last week

While you're in there you could also check continuity between there and the ECU and inspect the wiring for any damage

Russ

Thank you for your help.

Interestingly, when I first bought the car, half the exterior lighting didn't work. This turned out to be a bad contact somewhere in the engine fusebox, in one of the two main feeds to the LSM.

I am feeling increasingly confident that my car may be snatched back from the scrapyard, due to the expertise and experience in this user group.

Thanks to you, Marinabrian, Miss Colvert et al. ;-}

[COLVERT]

Disconnect your battery before you start playing around with all those electrical bits.---Just in case.----

[COLVERT]

Didn't even get a mention.------------




Mark, how could you ??????????

[MarkS]

Originally Posted by MarkS

Thank you for your help.

Interestingly, when I first bought the car, half the exterior lighting didn't work. This turned out to be a bad contact somewhere in the engine fusebox, in one of the two main feeds to the LSM.

I am feeling increasingly confident that my car may be snatched back from the scrapyard, due to the expertise and experience in this user group.

Thanks to you, Marinabrian, Miss Colvert et al. ;-}

Just disconnected the battery, disconnected all connectors under the in-engine fusebox, sprayed with WD-40, reassembled, and the engine started first time.

Thanks guys ! & Madamoiselle Colvert ;-}

[another_clean_sheet]

Originally Posted by MarkS

Just disconnected the battery, disconnected all connectors under the in-engine fusebox, sprayed with WD-40, reassembled, and the engine started first time.

Thanks guys ! & Miss Calvert ;-}

Exactly the same as mine this week which was also solved by Russ.
https://the75andztclub.co.uk/forum/s...d.php?t=289302