1997 Impreza, 2.2, automatic:
Sporadically will crank but not start.
Put accelerator to the floor and it will start.
Erratic idle speed at times. Will feel like it's on cruise control with tach at 1500-2000 and foot off accelerator.
Local shop cleaned throttle body and IACV with Seafoam. No improvement at all.
Runs fine on highway.
Diagnosis ? IACV ? Buy new (expensive...$350 ????) or used ? Where to buy ?
What else needs to be considered first ?
Is IACV "likely" the problem ? almost surely ?
Thanks ofr any help/suggestions !!!