Yesterday I go out for lunch and bang, engine power reduced. So I hook up the scanner and got some new codes. Along with the normal P0411, I got a P0651 and C0700 P.
P0651 Sensor Reference Voltage 'B' Circuit/Open
I haven't quite found what the C0700 P is for yet. But it's not the C0700 Level control accessory inflator switch circuit high.
I found a youtube video explaining
. Though I haven't reached the no crank problem yet.
It would appear the bad air pump would not supply the 5 volt which is what triggered the P0651 code. I'll have to take it off and inspect it. The guy in the video was unsuccessful at just cleaning it out and had to replace it.
I am still not so certain the cause for the P0411 SAI code. It may be a problem on it's own or caused by the bad air pump. I haven't researched yet if the Secondary Air Injection uses the same air pump.
Edit: It appears this has both separate Air Pump and Secondary Air Injection pump. Strange that I would get codes for both pumps.
This morning it does the same thing and only codes for the P0651 and not the 0411
I am going to pull the main air pump off this weekend and take a look at it. I'll probably tackle the secondary air injection pump as well but I don't think that is the one causing the reduced power. Generally when I get the p0411 it'll stall after 10 seconds after start, but start right back up without an issue.
I am beginning to think they are two separate problems since they both have separate pumps. But hey, what do I know lol. In any event, we'll see what happens after I remove the main air pump and inspect and test it.