Why does my Hyundai Excel break-down in hot weather ?

[Regwell]

1991 excel, `200ks, 1.5i
No lame remarks about Hyundais
The engine temp is ok.
When the ambient temperature gets high, after about 30 mins of driving the car will start to lose power and stop firing on all cylinders and eventually stop. If i turn the engine off downhill and let it cool down it helps for a couple of minutes and then does it again.
You can hear it backfire when its missing cylinders so the fuel is still going through the engine but its just not firing.

Any help would be good.

[horst]

horst
yes,that is a problem-distribution problem? you will not find this-find a NRMA station near you, with a new hand held car program checker.
having the problem as well,taken my car just now to the NRMA workshop in
albionpark rail nsw .
will report what the mechanics will find.
its a bastard of a problem-it given me the shi....for the last 12 month.