what are all the possibilties my car backfires? some suggestions were spark plug or ecu but what do they know non rotary drivers. i need your opinions thanks!

 

When does it backfire?

 

If you have no cats then its normal for it to backfire in high RPMs.

btw white87fc I'm 5'8" 120lbs. Muahaha. ok.

 

You are one skinny ****.

 

I am acutally having a similar problem, but I backfire when I downshift in the higher rpms (3500+). I am also running a stright 3" pipe all the way back.

 

I guess you guys havent owned rotaries before. The rotary runs pig rich, by default, so high rpms, when you drop the throttle, all of that fuel mix goes out your tailpipes and then you have backfire, or flames out the tailpipes. especially if you run straight pipes. it is the rotary "pop". its nothing to worry to much about, unless you are running standalone, high boost, etc. otherwise its just a way to keep people from tailgating you!

 

my 87 TII had a really bad case of backfires, then I found that my LIM was cracked...

 

^^^ bad karma my friend, guess that was a fun repair

 

tps adjustment exhaust leak and vaccum leak thats the typical causes