AHC Neutral pressures, help me read them!

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offroadkid

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i connect the Techstream, went to "L" mode then back to "N" and these are my readings. I have the screenshot of the service manual but can't make our if I'm in specs or not?!

image.webp
 
"Target front pressure is 6.8 - 6.9MPa. All you can do for the rear pressure is to ensure you aren't physically too high and then you may need to add 30mm spacers to get the pressure down a reasonable amount or ideally, new AHC coils AND spacers to get the pressure down to the lower end of its design range of 5.6 - 6.7 MPa."

Thats a quote from @PADDO from this thread:

Definitive list of AHC maintenance items
 
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BTW it's a 98 with 248K and original components so I'm not surprised if my readings are out of specs!

But it is smooth and still changes height as it should.

I just got a Techstream so I'm having fun looking at all of my readings!!
 
"Target front pressure is 6.8 - 6.9MPa. All you can do for the rear pressure is to ensure you aren't physically too high and then you may need to add 30mm spacers to get the pressure down a reasonable amount or ideally, new AHC coils AND spacers to get the pressure down to the lower end of its design range of 5.6 - 6.7 MPa."

Thats a quote from @PADDO from this thread:

Definitive list of AHC maintenance items

So it looks like the pressures are good? What about the height sensors? Am I not worried about those?
 
Rear pressure is too high.
The values from height sensors are perfect, in this screenshot. But you can"t tell if they give the correct value over the whole range, or if the linkages are good, without testing. It"s in the FSM.
 
"Target front pressure is 6.8 - 6.9MPa. All you can do for the rear pressure is to ensure you aren't physically too high and then you may need to add 30mm spacers to get the pressure down a reasonable amount or ideally, new AHC coils AND spacers to get the pressure down to the lower end of its design range of 5.6 - 6.7 MPa."

Thats a quote from @PADDO from this thread:

Definitive list of AHC maintenance items

Thanks for this quote!
 

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