Hi Guys,

I got a problem with misfireing engine when cold and on the low revs when it warms up. Audi A4 2000 1.8l standard.

I have scaned it and got an error P1593 - Altitude adoption: signal out of tolerance??

Any ideas on what this may be and how to resolve it.

Missfire still there when cold and on the lower revs.

Fule preassure good 4 bar
No performance chips installed

Audi A4 1.8 standard
2000