Hyundai H1 does not start

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T-by
Newbie
Posts: 7
Joined: Sun Jul 12, 2009 9:57 am

Hyundai H1 does not start

Post by T-by »

Hi there. I would like help with a Hyundai H1. 2005 vintage, 2.5 16V CRDI, D4CB engine. The engine starts and stops immediately. There is no error code anywhere. (The immobilizer has been written off.) The engine always starts immediately, but many times as soon as it reaches 850 rpm, the ECU stops injecting and stops immediately. All values ​​look good. (ground, power, fuel pressure, rotation sensors)
It's like the control unit "crashes". Have you met anyone like this? Unfortunately, I couldn’t find a sync oscillogram, so I can’t decide if mine is right.
Thanks in advance!
Attachments
synchronization.psdata
(338.41 KiB) Downloaded 12 times
synchronization.png
engine_stops.psdata
(1.65 MiB) Downloaded 22 times
engine_stops.png

vasek
TwoWaves
TwoWaves
Posts: 69
Joined: Tue Feb 17, 2015 7:27 pm

Re: Hyundai H1 does not start

Post by vasek »

Hi.
First of all, you need to make sure that the immobilizer is properly removed from the firmware.
You also need to look in the direction of the correct position of the chain.
Attachments
HYUNDAI D4CB CHAIN FROM POST.png
HYUNDAI D4CB OLD STRETCHED CHAIN.png
HYUNDAI D4CB NEW CHAIN.png

T-by
Newbie
Posts: 7
Joined: Sun Jul 12, 2009 9:57 am

Re: Hyundai H1 does not start

Post by T-by »

Hello!
Thank you for your feedback.
I will look at the immobilizer at another ECU service center.
About the crankshaft / camshaft position
however, I do not fully understand what you wrote.
Why did you take three pictures?
Is one such car a good sync sign?
Thanks in advance

vasek
TwoWaves
TwoWaves
Posts: 69
Joined: Tue Feb 17, 2015 7:27 pm

Re: Hyundai H1 does not start

Post by vasek »

Examples of D4CB engine synchronization :
1 - your example
2 - engine with long running time,the chain is stretched
3 - new chain installed

T-by
Newbie
Posts: 7
Joined: Sun Jul 12, 2009 9:57 am

Re: Hyundai H1 does not start

Post by T-by »

Thank you for your help.
If I understand it well, your third picture is the D4CB's engine
perfect synchronization oscillogram?
Attachments
HYUNDAI D4CB NEW CHAIN.png

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