[Shotimes] Lean stumble before sencondary kick in

[Leigh Smith]

Just cleaned my MAF yesterday on advice from a very good tech. What a
difference!
I was getting random part throttle lean stumble / misfire / bucking / low
torque issues at times, 2000-3000 rpm, but sporadic.
Now it's all gone, and part throttle torque is up a lot.
Biggest symptom clue: If your car has a definate power surge / jump when the
secondaries kick in, like mine did, then have your MAF checked out / cleaned.
Now I can hear the secondaries kick in at 4000 but I can't feel a thing, cause
the power output has no spikes/peaks/jolts, it's so dead smooth!! Just a
slight power swell now, no neck snapping jolt like before. :-)
Lee
90k miles and 10 years of dust must not be good for a MAF sensor wire.