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[animatora]

Hi there, I am in the middle of doing a automatic to manual conversion and I have the following questions. I have removed all the wiring around the automatic gearbox + the control unit but to me it looks like there is more to do:

- Fuel pump does not get earth when the ignition is switched on, I need to manually pass it in order to get it running. Manual says that I need to earth pin 21 for manual MT, and pass transmission coding signal (5V) to pin 42 for MT. I have done the earth on 21, but what does transmission coding signal mean, is it just pure 5v ? Any guidance on what needs doing to the ECU in order to get it running with the MT is appreciated.

[omegod]

Which engine is in it ?

[tunnie]

His details show Omega 2.4, sure we are not talking Carlton here 

[animatora]

Sorry I have missed that, we are talking C24NE Opel Omega Diamond. Just got this in mind.. fuel pump won't start if ECU thinks it is automatic and is not in N/P, right ?

[omega2018]

yes that's an 'omega A' known to the UK as carlton/senator

[Mr Gav]

You are best to change the injection loom to one from a manual car, there is a way round using the auto loom but can throw up issues.

I used a manual loom when I converted my Senator, it only takes around half an hour to do 

[animatora]

In don'r think there is a difference in the  injection loom, it should all be controlled by the ECU. I know there are people here that have done this before, please elaborate

[Mr Gav]

In don'r think there is a difference in the  injection loom, it should all be controlled by the ECU. I know there are people here that have done this before, please elaborate

There is a difference in the injection loom, trust me I`ve done it 

The loom goes from the ECU and to all the Fuel injection system on the manual but on the auto it also goes to the gearbox ECU, without the auto gearbox the two ECU`s see a problem as there is a break in the circuit.

It`s about ten years since I did mine but IIRC there is a couple of pins to bridge but you will always have the P on the dash illuminated.

It`s a lot less hassle to just use the manual loom, you will then also see the difference between the two.

I don`t think I have any pictures left of what I did but I`ll have a look.

[Lizzie Zoom]

I must ask the question, why do all that work to replace an auto box with a manual one?

I admire your obvious skill and determination in doing all that and knowing what you are doing, but on a car that is getting on in years why? What is the advantage in having a manual box?  Or are you going to race it?

Just curious

[Mr Gav]

Because the auto boxes are utter shite and the software is no better, I did it to my Senator and it was so much better for me, though Andy Beanz might disagree 

[Andy B]

Because the auto boxes are utter shite and the software is no better, I did it to my Senator and it was so much better for me, though Andy Beanz might disagree 

I've deliberately said nothing ...... 

Ian Marsh of the ABS would disagree with you. He converted an auto Senator to manual, then saw the error of his ways & converted it back to a proper gearbox. 

I've only driven a manual Omega a short distance ..... not the best of gearboxes 

[BazaJT]

I had a "c" reg. Senator 2.5 manual for a short time and I thought it one of the worst manual boxes I'd ever used,and from what I've read on here a lot of folk don't exactly rate the Omega B manual box that highly either.

[animatora]

I must ask the question, why do all that work to replace an auto box with a manual one?

I admire your obvious skill and determination in doing all that and knowing what you are doing, but on a car that is getting on in years why? What is the advantage in having a manual box?  Or are you going to race it?

Just curious

Engine has been taken out of the car and put on a offroad vehicle and intended for racing.

I just found this: http://www.omegaowners.com/forum/index.php?topic=90592.0

[Lizzie Zoom]

I must ask the question, why do all that work to replace an auto box with a manual one?

I admire your obvious skill and determination in doing all that and knowing what you are doing, but on a car that is getting on in years why? What is the advantage in having a manual box?  Or are you going to race it?

Just curious

Engine has been taken out of the car and put on a offroad vehicle and intended for racing.

I just found this: http://www.omegaowners.com/forum/index.php?topic=90592.0

Ah, thanks for that

[Mr Gav]

Because the auto boxes are utter shite and the software is no better, I did it to my Senator and it was so much better for me, though Andy Beanz might disagree 

I've deliberately said nothing ...... 

Ian Marsh of the ABS would disagree with you. He converted an auto Senator to manual, then saw the error of his ways & converted it back to a proper gearbox. 

I've only driven a manual Omega a short distance ..... not the best of gearboxes 

The box that I put in the Senator was fine, if a little long to throw but I must have been lucky as the one in the MV6 I had was good.

I hated the software on the auto box, changing down instead of riding the torque and not changing up when I wanted it to, I tried two other gearbox ECU`s too and found one to be better but not good so out it came and in went the manual 

You really wouldn`t like the box in the Z