Rover 3.9 V8 Hotwire EFI CPU Wiring O2 Sensors Distributor Etc.

[@ljmac1609]

Extraordinary instructional video. A must see for 3.9 Rover engine owners or would-be. Henson, you likely were a tenured professor at Cambridge, Oxford or Land Rover U!

[@Hensen1954]

+L J Mac Many thanks. Its good to help people and save confusion.

[@markphillips5765]

Brilliant video, this is exactly what I've been searching for for months! Now I know what I need to take from my donor and how to connect it. Thanks very much indeed.

[@anthonyallen7713]

great video, well explained, no music!

[@rangeroverrestoration5142]

What a great video this is. Congratulations on a wonderful piece of information. 👍

[@thegrantclan]

Just found your video absolute god send,thank goodness for guys like you 👍👍

[@911bruce]

I just stumbled across this vid, wow, thanks for posting this, very useful

[@Eurostang]

Fantastic video and very helpful! Thank you.

[@veronicaalarie7255]

Excellent 👍

[@veronicaalarie7255]

Thankyou

[@do3491]

This video is G O L D !!!

[@Hensen1954]

Glad you like it.

[@jamesg4185]

Brilliant !!

[@MrJebbata1]

Amazing vedio..thank you

[@rusyroadtogreasygold]

thank you for the leson i did not no and now i do, very kind of you to do this as there not meny folk do as you say in vid , lodes of hints from folk but no full story.

[@SNORKYMEDIA]

make sure your relays for the ECU and fuel pump are the special Bosch ones with a diode in them else you will run the battery flat

[@TheJostie]

I will be watchin this video about 265 more times😂 while pausing every 2 seconds

[@swank1975]

You can mistakenly swap the Coolant temp sensor and #1 injector connector. Done it once and it created all kinds of problems. Vehicle would start and run but once warmed up it would not restart. White connector is coolant and black are injectors.

[@johnmckeever8889]

Doing this at the moment. Very helpful. Are you Alan Partridge??

[@Hensen1954]

+John Mckeever Only on Fridays, lol.

[@matthewmcintosh1]

Hi mate awesome video, Did you need to upgrade the few lines/ rails to high pressure or are the standard series 3 lines okay ? Thanks

[@Hensen1954]

Standard ones OK. This engine is a 5 litre stroker. I am running 47psi to the fuel rail. A little bit higher than standard, but seems to be great for this engine.

[@matthewmcintosh1]

@@Hensen1954oh wow that’s insane, I think mine doesn’t have fuel rails just rubber hose lines, do I need to change them ?

[@Hensen1954]

@@matthewmcintosh1 The fuel rail is the metal pipe feeding the injectors, and has the fuel temp sender in it.

[@adamallison4983]

Hi hope i get a response i am stuck trying to hot wire my 14 cux system, i have it firing up by pouring petrol onto intake but can get injectors opening etc. what wire have you run from coil to ecu? is it main injector relay signal? could you please clarify what pin on ecu it is so i can locate it thank you.

[@paulhurley1051]

Where's you relay for the stepper motor?

[@wjthehomebuilder]

Did you install catalysts on the exhaust in front of the O2 sensors?

[@Hensen1954]

No cats on this car.

[@wjthehomebuilder]

@@Hensen1954 Thanks for the reply. No complaints with the set up? Running good with same blue tune resistor?

[@Hensen1954]

@@wjthehomebuilder Runs perfectly. Been using the car for about 3 years now.

[@wjthehomebuilder]

@@Hensen1954 Nice! Thanks for the feedback.

[@aaronpetersen9150]

Hello, this is a very helpful video! Thanks! I'm trying to find the plugs for an O2 sensor with a green little resistor plug instead of a bluebone like yours. Do you know how to identify the color code? Greetings, Aaron

[@Hensen1954]

www.actproducts.co.uk/2011/lucas-14cux-fuel-injection-system-%E2%80%93-installation-and-diagnostic-notes/

[@aaronpetersen9150]

Thanks for responding. I've read that article. It says the green resistor is for 3.9 and 4.2 engine. I've got an 4.0 tvr engine. Does it make a difference?

[@Hensen1954]

@@aaronpetersen9150 I dont know.

[@aaronpetersen9150]

Ok. Thanks for the effort.

[@derekcarroll78]

Hi I have connected up that system. When Throttle pressed have way down engine starts to misfire. Release accelerator and runs fine. Any help appreciated.

[@Hensen1954]

Sounds like fuel pressure or flow is the problem. Fuel need to be about 43psi.

[@johnmckeever8889]

One question: the constant live wire. Can this just be a fused live wire running directly to the battery?

[@Hensen1954]

+John Mckeever Yes, that's exactly how it should be done - quite a heafty fuse, 35 to 50 amps.

[@Hensen1954]

+John Mckeever Are you up and running now ??

[@johnmckeever8889]

+Hensen1954 not yet. Will use a pair of SU carbs to start up as I have a cam to break in and I need to start the engine straight away. No time for electrical fault finding. Still have the hotwire set up for later.

[@rusyroadtogreasygold]

from ignition switch as iv done this on a bmw engine, treet it like a car radio setup.

[@dominikdolbeau3108]

Thank a lot for this video. Can you exlplain to me how to connect the fuel pump relay and ECUplease ? I have trouble to fix it. Thanx again!

[@Hensen1954]

You need to look for a wiring diagram.

[@larsrump2]

currently building a 3.9 in my series 2a. I am going to use an exhaust without katalyst. will the O2 sensors still work properly?

[@Hensen1954]

Yes, perfectly. I have the same myself in the car in the video.

[@ALIasa912]

Is it necessary to fuse the power to 14CUX? If so, how many amps are required?

[@Hensen1954]

Good idea for safety. 30 amp in line fuse.

[@ALIasa912]

@@Hensen1954 Great, thanks a lot for the video, really helpful.

[@marcuscampbell5771]

I'm having a proplem in powering my ecu up after following this video, I think the problem I have is the automatic transmission inhibitor switch which would of been on the body loom not the engine loom, what's the best fix for this?

[@Hensen1954]

ECU must have 30 /40 amp constant feed from the battery - thick wire, and a switched power wire from the ignition switch.

[@marcuscampbell5771]

I have power correct power supply to the relay but the ecu isn't switching a earth signal to trigger the relay

[@rusyroadtogreasygold]

I'm over the moon I finally found something that tells me what I need to do however two questions first one is a gen system second question how do you get round the immobiliser thank you

[@Hensen1954]

No, not Gems.

[@tenerifesonia]

Just bought a 4.6 gem. Is this relevant

[@Hensen1954]

Slightly different.