hi folks, does anybody know off hand what range of values you should be roughly getting from the map sensor on the 1.4 16v engines? well mine is a early 1.6 but it has exactly the same map sensor as the later fabia's/polo's etc so i guess the map readings should be fairly similar... what's a typical idle load %? full throttle load%?

the problem i have is that at around 2500rpm i'm getting a slight hestitation and/or missfire, and as soon as it passes this it pulls like normal, i've ruled out the throttle position sensor inside the throttle body becuase i can see this behaving properly using vag-com, plus i have swapped it out for another throttle body that is known to be working 100% to check, all the dizzy, leads, plugs are new and the ignition timing is set bang on 6 BTDC as per the factory workshop manual...

i appear to get some odd looking numbers regarding the load (%) from the map sensor, so i just wondered what the collective knowledge is on this, the only other thing is i have no egr valve on there, but i'm led to believe this only functions when the coolant is >90 degrees and this mystery fault happens pretty much all the time even when cold...

it's only really noticeable if going up a really steep hill, where you can actually feel it properly missifiring

any help would be great

i'll get some logs done next time i road test a 16v mate and see what they say

legend :yes: