Originally Posted by
the_frozen_one
1.3 Valencia was updated to the 1.3 hcs in 1989 on the mk4. Hcs had a coil pack. Essentially the same engine as in the KA. Minus the injection of course.
Not quite £61k worth of motor though
funily enough youd think they were the same but they were alot different as i found out, i tried to repair a ka engine with my 16k miles 1.3 hcs engine only to find they were slightly different in almost every way so none of the parts fitted, i believe the cc is not the same and the heads and blocks are different, many more things that i cant remember. i cant remember if my 89 lump had a coil pack or a dizzy, twas so long ago and i cant find photos of the std engine anywhere.
as for your runnng problems it could be anything from air leak to earth problems. well the rear window will be some kind of wiring prob for sure.