Well, I have a new error. I saw this flash up once before but cleared it fast because I was driving. This time it did it again but I decided to save it. This error makes complete sense seeing how it simply can’t keep the front end up and falls almost immediately after stopping.

To note, I have three after market parts in, an AMK clone compressor, an off brand front valve and left front ride height sensor. I can say that for sure the compressor was a good thing because it wasn’t able to start at all before I installed it and it is able to keep things basically inflated whereas before it was constantly throwing the suspension error.

I am thinking now I might put back on the old ride height sensor and see if that helps anything. And at the same time look hard for leaks in that left hand side air spring. C1130-66 (AF) Air spring air supply - Algorithm based failure - signal has too many transitions/events

At 213981 mi

Triggered on 26-09-2025 13:32:23

 

That error is, as it says, "algorithm based". Meaning the system is not detected a physical fault but it is guessing you have an issue based on how the system in behaving. And that fault means you have a leak in a valve block or strut or line to a strut. In short it is saying that the system needs to keep adding air to a strut, specifically one of them, and therefore something is not right and there must be a leak. It could also mean air is leaking into the struts, but that is insanely rare and would trip antler code for gallery pressure increasing when it should not.

So you have a leak. I doubt if it is a sensor issue, but it may be worth trying the old anyway. And yes, could def be the valve block because aftermarket ones are known for issues.

 

thanks for your reply!! You are the man around here! I think it’s a leak, I really do, I just haven’t found it yet with the spray bottle. I am going to focus on that only this weekend. Is it possible for me to find it with the wheels off with it deflating so fast?

 

I guess best to do it with wheel on first to keep weight and pressure on the struts. I forget, did you replace the front struts? I know the driver front leaked at one point, correct?

 

No I have replaced the compressor, the left height sensor and the front valve.

 

Ope! Sorry, that was someone else. Guess ya just have to find that leak then, not much more you can do. Take it someplace really quiet, might be able to hear it. I could hear mine, soap was just confirmation.

 

if I could only hear like I used to! We will give it a go!