no wideband.... wish i did it would help. but after five hours of tinkering today, this is what i got...

to me with the maf plugged in the car runs pig rich while making the noise.
also i found another plug that if i unplug it the car runs alot better...
i think it is the peddle throttle..po123??

the car ran decent with this one unplugged. a little sluggish but def alot better.

anyone have any ideas??

 

bump...

 

I'm no electrical guru, but if I remember right, all the sensor are kinda looped together. I had a similar problem and to remedy it, I spliced into the maft ground and grounded it to the chassis. It ran good. It's one of the sensors, you just have to figure out which one it is. I wish I could be of better help.