AHC Sensor Adjustment for Lift

[2001LC]

If you like the ride no need to do anything. But keep in mind. The lower the Mpa at starting point (unloaded). The less work the AHC has to do. Which, helps extend life of shock seal and globes. Carry to much weight, reduces life.

As you know. Toyota AHC Mpa spec, is unload. Your OM will also give some guidance on what maximum load for vehicle. You should expect higher Mpa loaded. Which is fine.

That said. You can benefit with lowering pressure, unloaded. You already are running front, below spec of 6.9Mpa. Lowering rear Mpa a bit more, will help balance front to rear.

Since you've King AHC rear coils. Unlike with OEM coils, spacer on coils, you may get some lift in rear. I'd start with 10mm space. See how much they, reduces rear Mpa. Unloaded you may see ~5.8Mpa. Alternately, you can do a sensor lowering. Lower rear on to King coils, so coils carry more weight. Just make sure you keep 3/4" rake.

Bottom line. The lower pressure, the better. Balance that with ride feel to your liking.

 

[silver02accord]

If you like the ride no need to do anything. But keep in mind. The lower the Mpa at starting point (unloaded). The less work the AHC has to do. Which, helps extend life of shock seal and globes. Carry to much weight, reduces life.

As you know. Toyota AHC Mpa spec, is unload. Your OM will also give some guidance on what maximum load for vehicle. You should expect higher Mpa loaded. Which is fine.

That said. You can benefit with lowering pressure, unloaded. You already are running front, below spec of 6.9Mpa. Lowering rear Mpa a bit more, will help balance front to rear.

Since you've King AHC rear coils. Unlike with OEM coils, spacer on coils, you may get some lift in rear. I'd start with 10mm space. See how much they, reduces rear Mpa. Unloaded you may see ~5.8Mpa. Alternately, you can do a sensor lowering. Lower rear on to King coils, so coils carry more weight. Just make sure you keep 3/4" rake.

Bottom line. The lower pressure, the better. Balance that with ride feel to your liking.

Thank you for the reply. It rides great when loaded definitely not unhappy with it loaded. Now my only problem is having to adjust the tb when I'm cruising around town unloaded - because it definitely feels under dampened at those lower pressures. Thanks again

 

[chandlerhayes01]

What is a good obd II sensor reader should I get for the globe pressures. I’m only planning to lift the front slightly. Just want the TB adjusted properly to support the globes

 

[GTV]

I recently re-cross leveled and after getting the pressures to 6.3-6.4 front and 6.1-6.2 rear while filled with a full tank of gas, but no other gear. I mostly use the truck for longer 4wd trips and when fully loaded I am seeing 6.7 front and 7.7 rear. I have king springs at the rear but I don't have spacers. I have sliders, skids, drawers but no bumpers. Is 7.7 way out of line for the rear - should I try cranking the tb's cw to take some more pressure off the ahc before going to spacers?

If it was mine I’d add 30mm spacer to the drivers side and 15mm to the passenger to level it side to side and give a bit more support.

 

[silver02accord]

What is a good obd II sensor reader should I get for the globe pressures. I’m only planning to lift the front slightly. Just want the TB adjusted properly to support the globes

I like the Carsoft one

 

[silver02accord]

If it was mine I’d add 30mm spacer to the drivers side and 15mm to the passenger to level it side to side and give a bit more support.

My side to side(passenger v driver) is level. I usually travel with a passenger so thinking weight distribution besides fuel tank is pretty even. What's the idea behind different size spacers?

 

[GTV]

My side to side(passenger v driver) is level. I usually travel with a passenger so thinking weight distribution besides fuel tank is pretty even. What's the idea behind different size spacers?

They all tend to lean 10-15mm down on the left side.