Vauxhall X25XE

Discuss which Sensors work best with these ECUs and share how you are using inputs and outputs
Andy-reid
Posts: 58
Joined: Sun May 27, 2018 3:28 pm
ECU Model: S80 Pro
Distributor: DTA Direct
Firmware Version: 73.01
Location: Berkshire

Re: Vauxhall X25XE

Post by Andy-reid »

well that was depressing! swoped the wiring over to coil order i.e coil1 -cyl 1 and it now doesnt try to fire any cylinders?
back to the drawing board!
Rob Stevens
Posts: 1247
Joined: Thu Jul 28, 2011 4:10 am
ECU Model: S100 Pro
Distributor: None-Coil On Plug :)

Re: Vauxhall X25XE

Post by Rob Stevens »

Try doing as previously suggested by actually finding the firing order by testing?
Andy-reid
Posts: 58
Joined: Sun May 27, 2018 3:28 pm
ECU Model: S80 Pro
Distributor: DTA Direct
Firmware Version: 73.01
Location: Berkshire

Re: Vauxhall X25XE

Post by Andy-reid »

fire order is 123456 1 o/s/f 2 n/s/f 3 o/s centre 4 n/s/centre 5 o/s rear 6 n/s rear
Alex DTA
Posts: 1622
Joined: Fri Feb 28, 2014 1:03 pm
ECU Model: S40 Pro
Distributor: DTA
Firmware Version: 79

Re: Vauxhall X25XE

Post by Alex DTA »

Take a step back.

First, do a crank scope. Check the cam sensor is still working.
Second, crank it over, and check it's still synchronising:


If it is, it can only be incorrect timing, or not enough/too much fuel.
Take all the plugs out except cylinder 1, then take a crank scope and send it to me so I can check the crank and cam sensor angles.
Andy-reid
Posts: 58
Joined: Sun May 27, 2018 3:28 pm
ECU Model: S80 Pro
Distributor: DTA Direct
Firmware Version: 73.01
Location: Berkshire

Re: Vauxhall X25XE

Post by Andy-reid »

i will do a check later 1) i have re done the scope and it is still the same 2) will pop the plugs out and stick a pressure gauge on see the order the cylinders make compression 3) could it be the cylinder phasing in a strange place ? i.e the sensor picks up a pre determined point that is stored it knows then in so many crank pulses it is cylinder ??? as that reference could be anywhere ?
Alex DTA wrote:Take a step back.

First, do a crank scope. Check the cam sensor is still working.
Second, crank it over, and check it's still synchronising:


If it is, it can only be incorrect timing, or not enough/too much fuel.
Take all the plugs out except cylinder 1, then take a crank scope and send it to me so I can check the crank and cam sensor angles.
Antral
Posts: 194
Joined: Mon Aug 01, 2011 8:20 am

Re: Vauxhall X25XE

Post by Antral »

If you know the proper firing order it doesn't matter where the actual cylinders are positioned so if you put

F/O 123456 ( as you say)
O/P 123456

Put ecu pins in the holes that relate to these cylinders.

So 1 in pin 10
2 in pin 18
3 in pin 1
4 in pin 26
5 in pin 11
6 in pin 27

Tony.
Andy-reid
Posts: 58
Joined: Sun May 27, 2018 3:28 pm
ECU Model: S80 Pro
Distributor: DTA Direct
Firmware Version: 73.01
Location: Berkshire

Re: Vauxhall X25XE

Post by Andy-reid »

checked this today
it is how it is wired from what i see
i will put a spark plug lead from the coil to plug and try a timing light and check firing position
it could be the phasing if the cam sensor? may not actually be on cylinder 1?

check
Antral wrote:If you know the proper firing order it doesn't matter where the actual cylinders are positioned so if you put

F/O 123456 ( as you say)
O/P 123456

Put ecu pins in the holes that relate to these cylinders.

So 1 in pin 10
2 in pin 18
3 in pin 1
4 in pin 26
5 in pin 11
6 in pin 27

Tony.
stevieturbo
Posts: 3577
Joined: Tue Aug 02, 2011 12:08 pm
ECU Model: No ECU
Location: Norn Iron

Re: Vauxhall X25XE

Post by stevieturbo »

Stop guessing and do as Alex said and make a scope trace with plug 1 in.
Andy-reid
Posts: 58
Joined: Sun May 27, 2018 3:28 pm
ECU Model: S80 Pro
Distributor: DTA Direct
Firmware Version: 73.01
Location: Berkshire

Re: Vauxhall X25XE

Post by Andy-reid »

i have just re read it! with only 1 compression the crank ripple will show the 1 compression and the cam trigger it didnt sink in before! i was blinded by the obvious also the engine was put to one side as have been busy on other things!
Andy-reid
Posts: 58
Joined: Sun May 27, 2018 3:28 pm
ECU Model: S80 Pro
Distributor: DTA Direct
Firmware Version: 73.01
Location: Berkshire

Re: Vauxhall X25XE

Post by Andy-reid »

looking at the scope pic i sent ales last nite amd my bad understanding of what i am seeing the cam phase sensor looks to be between 5&6 will wait for his reply before i swop wiring about incase there is a software option first
Post Reply