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306 ECU
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25-11-2015, 10:36 PM
Hi guys.
I've found a deal with a 306 HDi with a burned ECU. My question is: If i buy an second hand HDi ECU it's plug and play? Greetings from Portugal 
25-11-2015, 11:27 PM
No, the ECU must be unlocked to run in any car.
HDi Tuning Ltd can supply ECUs which are unlocked that you can plug in and will work straight away.
26-11-2015, 03:53 AM
(25-11-2015, 11:27 PM)Ruan Wrote: No, the ECU must be unlocked to run in any car. Ty for the quick answer. But no even with a 306 HDi ECU can plug and play? Just to switch one by another...? I already have an 306 ph1 but if i could bought that cheap, i rather the HDi one. 
26-11-2015, 05:26 AM
No, the ecu must be unlocked otherwise it won't run.
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26-11-2015, 07:01 AM
also needs to be an unlocked ecu with the same ecu number as different ecu's use different engine looms
https://www.check-mot.service.gov.uk/ GTI6 Info Don’t drive faster than your guardian angel can fly.
Ah that's interesting, got any more specific info? I guess that means the hdi ecu plug guide is now defunct.
Posts: 7,825
Threads: 465 Joined: Dec 2011 Reputation: 114 Location: Cullompton Devon Car Model/Spec: Vauxhall
Thanks: 1
Given 98 thank(s) in 92 post(s)
26-11-2015, 08:36 AM
3plug ECU's as aposed to 1 plug ECU's
 also the 1 plug ecu uses a different bulkhead loom too the 3 plug as it has an extra plug behind the battery https://www.check-mot.service.gov.uk/ GTI6 Info Don’t drive faster than your guardian angel can fly. 
26-11-2015, 09:21 AM
Could just get the BSI (awaits welshpugs correction) and key fobs with the new ECU, no need to unlock then...
26-11-2015, 09:42 AM
You can fit a new BSI with a matched ECU and a matched immobiliser chip from the key, or you can just fit an unlocked ECU.
Either way you need to figure out if the ECU is actually at fault first, as most people tend to blame faulty wiring on an ECU fault etc.
cully
3plug ECU's as aposed to 1 plug ECU's also the 1 plug ecu uses a different bulkhead loom too the 3 plug as it has an extra plug behind the battery Oh i see, fair one. 
26-11-2015, 06:25 PM
Just find a donor car and unplug its ecu while running and then put it into the broken car and it will become locked to the broken cars original key and bsi, done it quite a few time snow and it works perfectly
26-11-2015, 08:06 PM
(26-11-2015, 06:25 PM)HDi--Power Wrote: Just find a donor car and unplug its ecu while running and then put it into the broken car and it will become locked to the broken cars original key and bsi, done it quite a few time snow and it works perfectly that's a nifty trick! 
It goes, it stops (as reqd).
 Hate Housework!
26-11-2015, 09:15 PM
I've heard that leaves the potential to re-lock at any time.
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