As stated P0492 and P0491, secondary air insufficient flow. I cleared the codes, performed output test of SAI pump, solenoids for combi valves (tested with vacuum as well), vacuum pump on the combi valves with pump running and I can hear and feel air in the tail pipes both sides, when combi valves are closed they are not leaking, vacuum source is good, no leaks in the system. Everything checked fine. I let it cool down and when started the SAI pump comes on, runs for a minute or so and shuts down. P0491 came back first start. There seems to be lots of air from the pump.
Not sure where to go next. Hope someone has been here before... help!
Thanks guys.
PS
I know there was a TSB for the 3.2 and 3.0V6 about clogged passages but this engine is not listed.
Not sure where to go next. Hope someone has been here before... help!
Thanks guys.
PS
I know there was a TSB for the 3.2 and 3.0V6 about clogged passages but this engine is not listed.