ive been trying to get maf signal readings from known good cars to compare with my own.
in short, i have a 146 2.0 TS ti, cf1, 4 pin maf, currently trying my third new one, starting with the drivenautomotive version mentioned at the beginning of this thread, a supposed bosch element only, and now a pierburg unit.
the car is better, but i dont believe it is 100%, so before i move on to the other issues i suspect the car may have, including a a tired and possibly breaking down cat, old lambda, etc etc, i was hoping someone could help compare actual maf return signal voltages.
autodata claim that at warmed idle, the meter between maf terminals 2 and 4, i should get 1-2v, and increasing the revs to 2000-3000rpm, i should then get 3-4v.
i get about 1v at idle, and it takes more like 3500-4000rpm to achieve any better than 2v!
trouble is, my original bosch measured up like this, so are my new ones any better at all, they all measure up very similar, GRrrr!
i kinow this is very likelyleading to as already mentioned here, that a replacement bosch is the only way to go, but i've had one, and it measured up no better then any other.
RGWM, i'd love to try something if you know that it is definitely a very good one, how can we work that out?
does anyone else have some measurements to compare to?
cheers, happy new year,