Predator Trouble Codes Help...

same here

I bought my 99' last summer and the code came up shortly after. The code is for the Secondary air injection incorrect flow or something. I looked up info on secondary air then determined that it wasnt an emergency. Mean while the engine light came on more frequently then finally its on full time now. I'm still in school so that why i havent worked on it yet. I plan to now.

anyway its been a long time since i last read up on it but my understanding is that secondary air feeds oxygen directly into your headers. This helps to get the cat warm when the engine is cold. So it only works for a few seconds after startup.

I thought about it hard. and it could still be a number of things. here is my check list but this is all guess on my part.

-check vacuum hoses for leaks breaks etc.
-check control valves with a multimeter to see if they are opening or remove one of the hoses and have someone start it up cold. "should i clear the code first?"
- get a darn book and read it! "this is my next step read the other post you cant miss it"
-the air pump could be bad so check to see if that is smoked or not or if something got it clogged.


all this stuff is just intuitive trouble shooting unless the book tells me something else. The problem is it takes time to execute.

steff746 said:

anyway its been a long time since i last read up on it but my understanding is that secondary air feeds oxygen directly into your headers. This helps to get the cat warm when the engine is cold. So it only works for a few seconds after startup.

-check vacuum hoses for leaks breaks etc.
-check control valves with a multimeter to see if they are opening or remove one of the hoses and have someone start it up cold. "should i clear the code first?"
- get a darn book and read it! "this is my next step read the other post you cant miss it"
-the air pump could be bad so check to see if that is smoked or not or if something got it clogged.


all this stuff is just intuitive trouble shooting unless the book tells me something else. The problem is it takes time to execute.

Click to expand...

I'd say try all that and also check you EGR pipe. If you need to know what that is, just ask.

okay i'll ask, what is a EGR pipe and where?
I am a bit familar with areas in my car but havent learned that one yet.

It is the Exhaust Gas Recirculation. It is an emmission peice and a round black item on top of the engine. It has an vaccumm line as well as a electric connection to it.