So my 99 Nissan Almera GA16DE 1.6L ( Euro Sentra ) is only OBDI, and only provides a voltage PID for the MAF.

Anyone know of a conversion from volts to grams per second?

  • Work it out : take readings of voltage at various rpm and then calculate the airflow at each rpm ie volume delivered per stroke - you will need to account for air losses and it will get more complcated if it is turbo... – Solar Mike Jun 24 '18 at 18:54
  • I'm seeing "stuff" which shows this is a logarithmic function (non-linear) ... but nothing I'd call official. And then I've only found anything which shows just for idle, which is 1.1-1.5vdc, which is 2.0-6.0 g/s. Here's the forum I pulled it from, if that helps. – Pᴀᴜʟsᴛᴇʀ2 Jun 24 '18 at 18:57
  • @Pᴀᴜʟsᴛᴇʀ2 That sounds about right, 1 gramme of air is about 1 litre at ambient T and P. Then idle at 800 rpm is about 13 revs/sec & a 4 stroke so 13/4 is just over 3 intake strokes per second i.e. about 3 litres... – Solar Mike Jun 24 '18 at 20:24

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.