Actsus light on!

[Jojo_91_Q45Infinity]

HI there all,Been trying to research some information for my 91 Q45 Infiniti. I recently got the car as a gift and it had no manual. The Actsus light turns on and off.. was told it had hydrolic shocks , that may be bad because the car moves up and down on occassion. I have no idea how to make the "stop lamp inoperative" words disappear from the display screen.:rolleyes All the brake lights work fine. I tried changing the fuse, but nothing happened.

I want to see if I can fix the small things on my own first.

Any help would be great.. thanks...

Jojo

[90Q45blue]

Check out this thread:

http://www.nissaninfiniticlub....rsion

Unless you want to spend around $4-5k on active suspension stuff, the conversion is your best bet.

Nick

[QShip]

I agree with Nick. I had my converted and it was much cheaper to do.The light could indicate something minor and cheap or major and very expensive.

[90Q45blue]

He is right, but because it is so advanced, it is very expensive to replace. If your car has more than 100k on it, I guarantee the accumulators need more fluid, if not replacing. And that's just the beginning. I would take it to your local Infiniti dealer and pay them $100 to do a diagnostic on your car. Then they can give you a "grocery list". Bring it back to NICO, and we'll tell what NEEDS to be done, what SHOULD be done, what can be done LATER, and what doesn't need to be done...as well as how to save a ton of money in the process.

Nick

[elwesso]

I agree.... Except on the parts of converting.

Its WORTH it. You will have the advancement that is comparable to cars today, for a FRACTION of the price...

Get a FSM and you can do a lot of self diagnosis. I would recommend you take it to the dealer as well for a checkup.

For stop lamp inoperative, I dealt with this for about a year, and I got rid of it by just replacing the bulbs with OEM. $2 from Joe. If that doesnt do aynthing you need to replace the sockets, $10 from joe.

Nick. The accumulators are nitrogen charged, they have no fluid in them.

Id say by now the accumulators are gone, and the shocks are probably near by.

Unless the system is COMPLETELY trashed, it will be nearly as good to replace the stuff than it would be to convert. If I had an active, I would replace everything and enjoy knowing that I own one of the most advanced cars within the last 10 years.

In summary, you need to see what your dealer says is wrong. And like they said, we can tell you what is important..

Also, no one mentioned the CHAIN GUIDES, which is vital....

Do you do any DIYing?? The shocks and accumulators are a DIY, and the accumulators we can for MUCH cheaper than the dealer can (recharged ones from texasoil)..

Overall, you need to spend some time brushing up on the previous posts, focusing on stuff about the ACTIVE SUSPENSION and the CHAIN GUIDES. Browse through other stuff as well.. Get a pastrami sandwich (the NICO preferred post reading food ) and spend the afternoon reading. NOTHING LIKE IT on the internet, GUARNTEED!!!!

[Jojo_91_Q45Infinity]

Thanks for the advice guys... I've always owned Chevy trucks before this and had no problems fixing them (not bad for a girl!), but this car is something new to me!

Thanks again!Jojo

[elwesso]

The Q isnt really that much worse to be honest....

Ive been working on SBCs and 2 cycle engines forever, and the Q was only marginally harder. Just more parts in a smaller space.

I dont think you will have any problems DIYing... You just gotta take your time (been there done that, on breaking bolts)

[texasoil]

First an intermittent actsus light may be somethig as simple as low oil level or a height sensor. First run the on board diagnostics---1) with the car shut down, transmission in P, turn the key to 'on' do not crank. 2) within 10 sec of key ON, turn the N/H switch fron N to H and back 10 times, stopping in N

3) the self diagnostics should start. In a few moments it will begin flashing a series of pulses, repeating till you turn the key off.

first series is 10's, second series is 1's 5 followed by 5 is '55', which means electricals are aok.

Let me know what you get.

Second thing is to determin how much suspension travel is left (as the nitrogen dissipates, you get less and les suspension travel.

With car running, bounce real hard on each corner (or get someone 200# to do it for you. The goal is to see how much smooth and damped travel is left. Fresh is about 5"

Exchange recharged accumulators are an easy swapout for the 4 struts, and at $200 each, are lots cheaper than converting (have to change springs, mounts, etc, etc.

The strut (shock) portion of the 'actuator' as they call them is extremely robust and should last practically forever--which conventional struts will not (50K miles max, and another $1200 job). With fresh strut accumulators it will ride as good or better than any conventional suspension Q45. If you go with aftermarket struts, they ride harsh and wear out quick I am told.

Like any high precision hydraulic system, the life is determined by fluid cleanliness. There are built in fine filters in the system, but the fluid should be replaced every 60-100K miles to keep it as new

send me an email off line ([email protected]) and I will send you a few articles explaining the system and how to keep it really active. Folks who do not understand the system can easily get scared by horror stories of what CAN happen, just like complete engine replacement stories - seldom, but $10K when they happen. IF the unthinkable failure should ever happen, AND I did not have good used parts to swap out, one could always then convert to standard suspension and live with the inferior ride and handling.

[Jojo_91_Q45Infinity]

Your a doll texasoil... I'll let you know tomorrow!!