Jump to content
SAU Community

Recommended Posts

Hi guys, I'm using a VIPEC in my R32 GTR and since the install there's been an intermittent problem with my Atessa which brings up the code for TPS fault. I've read a post by Dirtgarage saying that this problem had happened and was possible caused by the ECU creating a voltage drop (also with an Autronic) and the correction was a voltage buffer or some sort. Could anyone get into detail about what the fix is? I'm getting tired of losing my AWD mid corner on a hard drive and having to turn the car off to reset the Atessa..... Please help.

  • 5 months later...

i think tps is 0.5-5v.

awd ecu needs 0.5-3.5v for tps signal. (possibly 0-3.5v, i forget)

You need to find somebody than can make you a circuit to read the tps voltage and output the lower voltage signal to the awd ecu.

It can be done with a simple op-amp circuit with 0.7 gain.

  • 2 weeks later...
i think tps is 0.5-5v.

awd ecu needs 0.5-3.5v for tps signal. (possibly 0-3.5v, i forget)

You need to find somebody than can make you a circuit to read the tps voltage and output the lower voltage signal to the awd ecu.

It can be done with a simple op-amp circuit with 0.7 gain.

tps need to be set at 0.38-0.40 when throttle closed

i think tps is 0.5-5v.

awd ecu needs 0.5-3.5v for tps signal. (possibly 0-3.5v, i forget)

You need to find somebody than can make you a circuit to read the tps voltage and output the lower voltage signal to the awd ecu.

It can be done with a simple op-amp circuit with 0.7 gain.

tps need to be set at 0.38-0.40 when throttle closed

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Yep, there's a very minor drift left that happens a few seconds after letting go of the steering wheel, but not enough to bother me. Enjoying the car still!
    • Got you mate. Check your email!
    • I see you've never had to push start your own car... You could save some weight right now...
    • Sounds good.  I don't 100% understand what your getting at here. When you say, "I keep seeing YouTube videos where people have new paint and primer land on the old clearcoat that isn't even dulled down" do you mean this - there is a panel with factory paint, without any prep work, they paint the entire panel with primer, then colour then clear?  If that's what you mean, sure it will "stick" for a year, 2 years, maybe 3 years? Who knows. But at some stage it will flake off and when it does it's going to come off in huge chunks and look horrific.  Of course read your technical data sheet for your paint, but generally speaking, you can apply primer to a scuffed/prepped clear coat. Generally speaking, I wouldn't do this. I would scuff/prep the clear and then lay colour then clear. Adding the primer to these steps just adds cost and time. It will stick to the clear coat provided it has been appropriately scuffed/prepped first.  When you say, "but the new paint is landing on the old clearcoat" I am imagining someone not masking up the car and just letting overspray go wherever it wants. Surely this isn't what you mean?  So I'll assume the following scenario - there is a small scratch. The person manages to somehow fill the scratch and now has a perfectly flat surface. They then spray colour and clear over this small masked off section of the car. Is this what you mean? If this is the case, yes the new paint will eventually flake off in X number of years time.  The easy solution is to scuff/prep all of the paint that hasn't been masked off in the repair area then lay the paint.  So you want to prep the surface, lay primer, then lay filler, then lay primer, then colour, then clear?  Life seems so much simpler if you prep, fill, primer, colour then clear.  There are very few reasons to go to bare metal. Chasing rust is a good example of why you'd go to bare metal.  A simple dent, there is no way in hell I'm going to bare metal for that repair. I've got enough on my plate without creating extra work for myself lol. 
×
×
  • Create New...