Re: E-Test

High NOx is usually caused by timing being off or running too hot
(or both).  Check the ignition and valve timing 1st.  Get that 
right and re-test.  If still not passing replace thermostat and flush
radiator.  

In article <[EMAIL PROTECTED]>,
Fernando Torres <[EMAIL PROTECTED]> wrote:
>I've got a 1988 VW Fox that has failed the e-test twice due to high NOx
>reading.
>It has 228000km. No one can tell me what is causing it, other than to spend
>money for engine analysis and other bs like that.
>
>Any suggestions?
>
>-- 
>Fernando Torres
>[EMAIL PROTECTED]
>
>