WHEN OUTSIDE AIR TEMP IS BELOW 40 DEGREES ENGINE...
2003 Pontiac Vibe
February, 25, 2013 AT 8:14 PM
When outside air temp is below 40 degrees engine reves then falls off several times, also noticed when temp is in the single digits it does not do this? Replaced air flow sensor and had intake manifold cleaned and used injector cleaners to no avail. Going to change spark plugs next.