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[fastcav]

The old girl failed mot on evcessive smoke from the exhaust, smoked out the mot centre while the keyboard operative tried to drive it off the brake rollers, haha. But anyway, 1995 2.5 td, has a chip key immobiliser and the ecu has been chipped, bought what i was told was a non chip ecu from a standard car just as a temporary measure to get it through the test, turns out the ecu i got was a chip key ecu and i cant get the key for the car it came out of as it has been scrapped now, d'oh! Can i bypass the immobiliser somehow, just to get through mot and then i can put go fast ecu back in, dontmind if its temporary or permanent, my car aint pretty, just need it to work. Any help greatly appreciated, cheers Gordie 

[hoofing it]

The old girl failed mot on evcessive smoke from the exhaust, smoked out the mot centre while the keyboard operative tried to drive it off the brake rollers, haha. But anyway, 1995 2.5 td, has a chip key immobiliser and the ecu has been chipped, bought what i was told was a non chip ecu from a standard car just as a temporary measure to get it through the test, turns out the ecu i got was a chip key ecu and i cant get the key for the car it came out of as it has been scrapped now, d'oh! Can i bypass the immobiliser somehow, just to get through mot and then i can put go fast ecu back in, dontmind if its temporary or permanent, my car aint pretty, just need it to work. Any help greatly appreciated, cheers Gordie 

I can't see how the imobiliser would cause excessive smoke.
What colour was the smoke.blue/white

[Omegatoy]

The old girl failed mot on evcessive smoke from the exhaust, smoked out the mot centre while the keyboard operative tried to drive it off the brake rollers, haha. But anyway, 1995 2.5 td, has a chip key immobiliser and the ecu has been chipped, bought what i was told was a non chip ecu from a standard car just as a temporary measure to get it through the test, turns out the ecu i got was a chip key ecu and i cant get the key for the car it came out of as it has been scrapped now, d'oh! Can i bypass the immobiliser somehow, just to get through mot and then i can put go fast ecu back in, dontmind if its temporary or permanent, my car aint pretty, just need it to work. Any help greatly appreciated, cheers Gordie 

has it got IR immobilisor? cosif it has then you can change ecu without worrying about the immobilisor, I can swap mine anytime i like with no worrys, however they must be the same number, i.e 217 for 217 or 315 for 315, as an example, as for smoke, fill tank with bp ultimate diesel after changing fuel filter and filling with diesel magic, then run car up dual carriageway or motorway at high rpm(4k) in third gear for about 3 miles before the test

[fastcav]

its not the immobiliser causing the smoke, the cars original ecu is chipped, which makes quite a lot of black smoke when accelerated in fury, my problem is i bought a spare ecu that hadnt been opened, just so i could run it through the test as standard, but needless to say the chip in my key wont match the spare ecu, this is where my problem lies

[hoofing it]

Diesels don't get a high rpm test(well not at my mot station) there only tested at idle speed so this shouldn't affect the partical part of the smoke test. as longs the emissions under 3.00 your ok

[fastcav]

The old girl failed mot on evcessive smoke from the exhaust, smoked out the mot centre while the keyboard operative tried to drive it off the brake rollers, haha. But anyway, 1995 2.5 td, has a chip key immobiliser and the ecu has been chipped, bought what i was told was a non chip ecu from a standard car just as a temporary measure to get it through the test, turns out the ecu i got was a chip key ecu and i cant get the key for the car it came out of as it has been scrapped now, d'oh! Can i bypass the immobiliser somehow, just to get through mot and then i can put go fast ecu back in, dontmind if its temporary or permanent, my car aint pretty, just need it to work. Any help greatly appreciated, cheers Gordie 

has it got IR immobilisor? cosif it has then you can change ecu without worrying about the immobilisor, I can swap mine anytime i like with no worrys, however they must be the same number, i.e 217 for 217 or 315 for 315, as an example, as for smoke, fill tank with bp ultimate diesel after changing fuel filter and filling with diesel magic, then run car up dual carriageway or motorway at high rpm(4k) in third gear for about 3 miles before the test [/quo

its got a chip in the key, probably back in the day it would have had the ir keyfob, but now it just gets the button thumped down to lock it and opened with the key. If i try to start it using the spare ecu the management light flashes constantly as soon as the ignition is turned on cos the immobiliser is on, as soon as i get it running an ecu that hasnt been chipped the smoke will go away, it smokes like fook on its own ecu cos the fuelling has been turned up so far to compensate for the amount of boost its running and the size of the turbo

[Omegatoy]

The old girl failed mot on evcessive smoke from the exhaust, smoked out the mot centre while the keyboard operative tried to drive it off the brake rollers, haha. But anyway, 1995 2.5 td, has a chip key immobiliser and the ecu has been chipped, bought what i was told was a non chip ecu from a standard car just as a temporary measure to get it through the test, turns out the ecu i got was a chip key ecu and i cant get the key for the car it came out of as it has been scrapped now, d'oh! Can i bypass the immobiliser somehow, just to get through mot and then i can put go fast ecu back in, dontmind if its temporary or permanent, my car aint pretty, just need it to work. Any help greatly appreciated, cheers Gordie 

has it got IR immobilisor? cosif it has then you can change ecu without worrying about the immobilisor, I can swap mine anytime i like with no worrys, however they must be the same number, i.e 217 for 217 or 315 for 315, as an example, as for smoke, fill tank with bp ultimate diesel after changing fuel filter and filling with diesel magic, then run car up dual carriageway or motorway at high rpm(4k) in third gear for about 3 miles before the test [/quo

its got a chip in the key, probably back in the day it would have had the ir keyfob, but now it just gets the button thumped down to lock it and opened with the key. If i try to start it using the spare ecu the management light flashes constantly as soon as the ignition is turned on cos the immobiliser is on, as soon as i get it running an ecu that hasnt been chipped the smoke will go away, it smokes like fook on its own ecu cos the fuelling has been turned up so far to compensate for the amount of boost its running and the size of the turbo

if its been chipped in the ecu, then why not remove the chip from the stndard ecu and put it in your chipped ecu ??
both should be socketed if 95 and before

[fastcav]

Diesels don't get a high rpm test(well not at my mot station) there only tested at idle speed so this shouldn't affect the partical part of the smoke test. as longs the emissions under 3.00 your ok

Im in northern ireland mate, it wasnt a smoke test, it was the rather clown that was testing the car trying to drive it out of the brake rollers revved the plums out of it, came on boost and made smoke that james bond would have been proud of. He then got quite uppity and went straight to his computer (cos n.ireland mot testers know f**k all about cars) and refused to finish the test

[TheBoy]

You cannot bypass the later immobilser.

There are 4 ecus fitted to UK TDs:

U25DT have 214 and 215
X25DT have 427 and 428

You cannot interchange between  the ecus.

[fastcav]

Ha dthought about swapping the chips, as i didnt fit them (previous owner did) i wasnt too sure about what had been done to the thing because in my previous experience, any aftermarket chip fitted to a vauxhall ecu does away with the immobiliser, in saying that ive never fitted them to a diesel omega ecu, i had just thought it would have been easier to do a straight ecu swap for the 20 minutes it takes for an mot to be carried out and then stick my old one back in when it passed

[fastcav]

You cannot bypass the later immobilser.

There are 4 ecus fitted to UK TDs:

U25DT have 214 and 215
X25DT have 427 and 428

You cannot interchange between  the ecus.

Both the ecu's i have are out of 95 cars with the u25dt engines and both ecu's are214's, i just dont want the hassle of programming a chip to match an ecu that cost me 20 regal king size and will only be used for an hour a year

[TheBoy]

You cannot bypass the later immobilser.

There are 4 ecus fitted to UK TDs:

U25DT have 214 and 215
X25DT have 427 and 428

You cannot interchange between  the ecus.

Both the ecu's i have are out of 95 cars with the u25dt engines and both ecu's are214's, i just dont want the hassle of programming a chip to match an ecu that cost me 20 regal king size and will only be used for an hour a year

If its a 214, the same immobiliser will work on both. Its not a complex system on those...

[hoofing it]

Diesels don't get a high rpm test(well not at my mot station) there only tested at idle speed so this shouldn't affect the partical part of the smoke test. as longs the emissions under 3.00 your ok

Im in northern ireland mate, it wasnt a smoke test, it was the rather clown that was testing the car trying to drive it out of the brake rollers revved the plums out of it, came on boost and made smoke that james bond would have been proud of. He then got quite uppity and went straight to his computer (cos n.ireland mot testers know f**k all about cars) and refused to finish the test

What a f***y your lucky he never f***** your car :-?

[Turk]

You cannot bypass the later immobilser.

There are 4 ecus fitted to UK TDs:

U25DT have 214 and 215
X25DT have 427 and 428

You cannot interchange between  the ecus.

:-? That's what I thought too...but I have a 215 from my '94 auto Elite that works on my 427 equiped '00 manual CD. 

I found this out as last year when I managed to fry the 427 with a jump starter/charger unit. I tried to start the car and then noticed the Diesel Pre-Heat light was on constantly. Then I saw that the rubber insulation of one of the cable clamps was missing and it had tilted onto the exposed ECU mounting plate.
Cue sudden hollow sinking feeling ! 

I tried the 215 off my Elite and although ever so slightly down on power, it ran fine (phew !) until I sourced another 427.