Removing the AHC - where is the ECU? (1 Viewer)

[jvoelcker]

Hi,

I'm slowly stripping the AHC off a '02 HDJ100 and have removed all the pipe work, accumulators, under chassis wiring, pump, etc.

All that I have left to do is to remove the fuses and the ECU.

I should be able to locate the fuses easily enough, but was wondering where the ECU is.

Does anyone here know?

Thanks in advance.

 

[1loudLX]

i believe the ECU is under the dash on the drivers side, above the skinny pedal. Slee has a good PDF file of where it is, check it here. http://www.sleeoffroad.com/installation/LX470_height_control.pdf


Side note, how long has it taken you to get everything off and on a scale of 1-5 bananas, whats the difficulty level?

 

[jvoelcker]

Thanks, I'll check it out.

I guess it took around 6hrs, possibly a little more, I wasn't really timing it.

The biggest problems are getting the shocks out because you can't get a standard socket and ratchet over them - I made a special socket that worked fine for the back ones, bit it broke on the front ones so I just used an angle grinder to cut the tops off.

The other pain is that the accumulators, and chassis mounted tank have 12mm bolts into the top of the chassis - you definately need a 12mm ratchet spanner to get to them and you need to be a bit of a contortionist!!!

Anyway I started by using my vacuum bleeder to suck all the fluid out of all the accumulators and the tank and then worked my way from the pipes to the front shocks to the rear one, stripping out all the pipework and also the wiring to the plugs in the main loom above the rear shock mounts.

 

[1loudLX]

awesome, what did you replace the AHC system with?

 

[r3run33]

hey great info also with all the stuff you took off aprox how much did all the stuff weigh? and is that the reason you are taking it out????

 

[jvoelcker]

awesome, what did you replace the AHC system with?

Just going for the basic diff drop, OME torsion bars, springs and shocks. The car is shipping out to live in Kenya on the 25th so didn't want anything too exotic.

 

[jvoelcker]

hey great info also with all the stuff you took off aprox how much did all the stuff weigh? and is that the reason you are taking it out????

I have no idea what the total weight would be, but the accumulators, tank and pump are solid little things.

I'm taking it out partly from the weight ppoint of view and also it just tidies things up on it. It should also make it a little less confusing for anyone working on it in the future.

OH, and there is the added bonus that I have a full set of accumulators, sensors, etc from a low mileage 100 that are in full working order that I can either sell on or use to fix other 100s in the future

 

[Nsingh85]

Hi jvoelcker,

I read that you are shipping the car out to kenya. I am a member from kenya, and am also considering removing the AHC.
Where about will you be in Kenya??
If there is anything that you would like to know you can PM

 

[jvoelcker]

Hi,

I read that you are shipping the car out to kenya. I am a member from kenya, and am also considering removing the AHC.
Where about will you be in Kenya??
If there is anything that you would like to know you can PM

The car is actually a customer's car and he has a place near Naivasha.

The main problem with removing the AHC (apart from all the oil everywhere) is getting to the bolts holding on the accumulators and tank on top of the chassis rails - ideally you need a ratchet spanner, otherwise you will be there all day.

 

[r3run33]

hello thanks for the response i understand the concept of keeping it simple but for a guess of the weight is it aprox 2 or 300 lb or near 150 kilos? I have looked under the truck and it does seem a lot of work to remove the equipment. i plan on leaving my on if the weight is not considerable. thanks again

 

[Texasoil]

my estimate of weight savings is around 50 kilos or less. Have to install heavier rear springs and shocks will weight more than the simple hydraulic jack struts do. Accumulator/valves weigh about 5 Kg each
main accumulator 10Kg, pump and reservoir another 10 kg max. Piping can not be more than 10 Kg total.

 

[1loudLX]

I wouldnt remove it for "weight savings" but if you wanted to carry more weight then the AHC allows, then of course "upgrade" to a normal system.