My problem is next : cold engine starts perfectly, but when it is hot ( working temp ) when i turn it of ( engine had working temp. ) after 5 or more min. it will not start untill i press AP.

does enyone can help??

no check engine light no codes...

car is volvo 850 2.0 20valve 1994

TNX

 

What is AP? you need to press to start the car?

 

AP : acceleration pedal