Originally Posted by
andi-p
If the parts have been changed has the map been altered as it will be a different map on the 130 ecu
as far as i know its a stock RS1800 map on the ALSO coded ECU doesnt look like it has been chipped but then again anythings possible...
Originally Posted by
Mk1-stu
If the maf sensor makes it run worse, then there's one of your problems, but they're cheap as chips to replace. I've found some of the Zetec engines run like shit without them plugged in too, but it's usually the later silver tops.
mine is the later type ST with 16v zetec on the rocker cover, with it plugged in its more violent with the idle, without it settles it and the revs pick up but still not right