My 2001 Impala (125,XXX mi) keeps throwing trouble code p0102 MAF sensor low circuit. We have cleaned and replaced MAF, but still throwing same code. Just recently started coughing/sputtering while accelerating and highway driving - not all the time, but enough to make me nervous. Don't know where/what else to look for. Did a trace of wires and all are OK. Would appreciate any suggestions.
Thanks - Ang