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24th April 2017, 15:06
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#1
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Regular Poster
Join Date: Aug 2014
Location: Surrey
Posts: 275
Car(s): '57 Vauxhall Vectra CDTI - Daily
'02 Saxo VTS - Tu
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Engine swap - ECU & Immobliser
Hi all
Facing the end of the life of my engine,
I just wanted to know, if I swap JUST the engine, literally remove and refit the new one, can I use the same ECU etc without upsetting the immobiliser or do I need everything from the car the engine came from?
If not, will a jp4 accept the j4 ECU?
Thanks in advance
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24th April 2017, 16:11
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#2
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Saxperience Forum Bum
Join Date: Jul 2010
Location: South Wales
Posts: 3,076
Car(s): ZX 16v, 205 GTI, 309 Goodwood, 405 MI16.
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just swap the engine, they're not coded to the ecu.
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24th April 2017, 18:50
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#3
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Regular Poster
Join Date: Aug 2014
Location: Surrey
Posts: 275
Car(s): '57 Vauxhall Vectra CDTI - Daily
'02 Saxo VTS - Tu
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Quote:
Originally Posted by welshpug
just swap the engine, they're not coded to the ecu.
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Was more immobilizer I'm worried about, as the car can't be started.
Will both the ECU and immobilizer accept a new engine?
Thanks Welsh
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24th April 2017, 20:45
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#4
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Saxperience Forum Bum
Join Date: Apr 2013
Location: Jarrow
Posts: 4,022
Car(s): 2003 Icelandic Grey 16v VTR
1991 Daihatsu GTti
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It will
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The Following User Says Thank You to Mickswan For This Useful Post:
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24th April 2017, 20:52
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#5
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Regular Poster
Join Date: Aug 2014
Location: Surrey
Posts: 275
Car(s): '57 Vauxhall Vectra CDTI - Daily
'02 Saxo VTS - Tu
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Quote:
Originally Posted by Mickswan
It will
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Cool.
J4 ECU/JP4 Engine compatibility?
Sensors can be made to fit but what about the actual ECU - j4s are hard to find now!
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25th April 2017, 22:46
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#6
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Frequent Poster
Join Date: Nov 2009
Posts: 576
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If you drill the JP4 head to accept the J4 inlet you've got nothing to worry about.
Except maybe if your J4 is very early you might need to swap the coolant temp sensors to the JP4 head because the connector type changed mid-J4.
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The Following User Says Thank You to Chipwizards For This Useful Post:
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25th April 2017, 23:30
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#7
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Regular Poster
Join Date: Aug 2014
Location: Surrey
Posts: 275
Car(s): '57 Vauxhall Vectra CDTI - Daily
'02 Saxo VTS - Tu
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Quote:
Originally Posted by Chipwizards
If you drill the JP4 head to accept the J4 inlet you've got nothing to worry about.
Except maybe if your J4 is very early you might need to swap the coolant temp sensors to the JP4 head because the connector type changed mid-J4.
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That's the plan. It's an 02 so should be okay!
Any idea of what sensors need changing or is it altogether very different?
Thanks bud
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28th April 2017, 20:20
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#8
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Frequent Poster
Join Date: Nov 2009
Posts: 576
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Quote:
Originally Posted by smokeandpoke
That's the plan. It's an 02 so should be okay!
Any idea of what sensors need changing or is it altogether very different?
Thanks bud
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Coolant temp, as already stated.
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29th April 2017, 11:13
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#9
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Regular Poster
Join Date: Aug 2014
Location: Surrey
Posts: 275
Car(s): '57 Vauxhall Vectra CDTI - Daily
'02 Saxo VTS - Tu
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Quote:
Originally Posted by Chipwizards
Coolant temp, as already stated.
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You said the earlier ones need changing.. mines an 02 so should be okay?
I will take as much of the wiring and ancillaries as possible!!
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Mick 'Big Duck' Swan
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