SAI Secondary Air Injection ran then got CEL
#1
SAI Secondary Air Injection ran then got CEL
Any idea what caused this? Car started, SAI whine came on like usual. The SAI pump turned off after about a minute as it normally did in the past. After the car warmed up (maybe ten minutes later) at a stop light, the SAI turned on again, then I got a CEL. Isn't the SAI only used during cold starts? Mine has been turning on occasionally after the car's been warmed up but hasn't thrown any CELs.
Last time it was a leaky vacuum hose, but couldn't find any visual evidence of leaky hoses.
Thanks in advance
Last time it was a leaky vacuum hose, but couldn't find any visual evidence of leaky hoses.
Thanks in advance
#3
My CEL comes on 5-6 times per month with the P0411 code. I keep a $50 code reader from autozone in my glove box, so I just reset it and keep moving. I've looked for the leak but can't find it, so I'll not worry too much about it since it is intermittent.
#4
I had the same engine code and I ended up replacing the SAI. The connections coming out of the SAI were rotted and broken so I assumed that water got into it. You shouldn't actually hear it come on. If you hear a turbine sound, that means its dying.
#10
Yeah mine did the same thing, so I ripped out the SAI pump, combi valve and all of the associated plumbing and added an Integrated Engineering blockoff plate to cover the hole in the cylinder head. Then I paid to have SAI readiness coded on in my ECU. Then I failed three state safety inspections and now I have to buy all that stuff back and replace it...