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2007 Saturn ION check engine light
The secondary air injection pump and the air check valve that sits
Behind the manifold are both brand new..when the light is reset, it will
Return after a couple drive cycles. The smog machine will show
1 trouble code indicating "insufficient secondary air flow"
All other codes are clear...
This model does not have a barometric press sensor
Alldata indicates that the barometric pressure must match the manifold
One other note...
The scan tool will not read the info ,so we cannot command the air pump
The smog machine will not indicate baro pressure
Really scratching my head on this
This our only car, wife is disabled..
Any suggestions are appreciated