replaced maf sensor because it was easy. the p0102 code cleared and the car ran perfectly for another 130 miles. then the p0102 code/stalling/hard start issue surfaced again!

checked voltage to maf - keyed source 12.01 volts, 5 volts on other lead as referenced to the middle ground wire to maf.

checked battery voltage across positive and negative batt terms -> 12.74VDC. with negative lead of meter on engine mount metered same 12.74 volts. that tells me the engine has a good chassis ground so the maf should have a good ground reference correct?

next i will be looking for shorts on the wiring from the pcm to the maf as well as the keyed source.

CTKGP09- you mentioned CPS - would a faulty cps trip the p0102 code? that's the only code the car is tripping.

any other ideas anyone? taking the bus to work stinks!