CEL p0171, Backfire!! HELP!!!!

[MSP3.5]

(smash) OK, so my car is idling very erratic and it's backfiring inside of the intake as it idles. Kind of like a clunk clunk clunk clunk...it accelerates fine and all. I cleaned my MAF, and I threw some plugs in it just for the hell of it...still the backfire remains! this is a really really mind boggling thing! can anyone relate to this or help? (smash)

[shane02pro5]

That's not a misfire code that is lean at idle which many times is due to a vac leak. Start by trying to spray some carb cleaner around the tb and im and listen for a raise in idle.

[MSP3.5]

here's a couple of camera phone vids until i try that method.

car is idling on it's own, im not touching the throttle at all

http://www.youtube.com/watch?v=yYL8gECIvE4
http://www.youtube.com/watch?v=LkhcrZ6n7iU

I know that the misfire isn't a p0171, I was just stating that I have that code as well as the backfire....

[.mazda.speed.]

Doesnt sound to healthy too me,

[BOOSTR]

MSP with a blown WGA can also trigger that code.

[TropicalDelight]

gotta find the vac leak, and replace your coils for the misfire.

[MSP3.5]

so I guess i should try and replace the coils first before i order the WGA from atp...i'll get that done tomorrow after work and then post back and let u guys know. thanks in advance for all of your help

[MSP3.5]

the misfire is fixed...my faulty power steering pump was dragging down my engine and making it miss really bad...maybe the belt was too tight? the pump had been bad for a while...(which is a real pain in the a$$ to steer while sitting still.) Anyhow, I still have to replace my WGA and get a new PS pump or if anyone can sell me one??