surging 82 320i

[dgsmooth]

i have an 82 320i and it surges under acceleration, even a little at idle. also, when i let it drop down from 3000 rpm or more on its own, it will stall. if i slow it down slowly with throttle or transmission a little, it will almost stall, and then go back to idleing perfect. i honed the block and put in new rings, and completly rebuilt the head and everything, and now i can't get it to run smoothly like it did before....i'm becoming very desperate.........:smoker2: :smoker2:
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[chrisco2001]

Probably your oxygen sensor if you go down from 3k rpm and then it stalls. Happened to me also have an 82' 320i, sweet little car. Good Luck!

[wally059]

Mine was doing the same but it had a ruber hose broken, the one coming from the filter to the engine, you might want to check your vacum hoses while you try to figer it out.