Ok my car has been backfiring for a while now following high revs. At first i thought it was because i had 2.25" exhaust, gutted cat, straight back to a big muffler coming out passenger side. Well i just got a new axle back exhaust system installed, and the backfiring is still there. Also, i do have a code 23... NOw, do you think the backfiring is caused by the cat being hollowed, or do u think its just running a little rich or something. I am gonna install the new sensor next wkend, so i guess i will find out soon enough, but just wondering what you guys thought.......?

Thanks

 

premiuim gas? have you ever used nitrous?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NitrousDreamz &raquo;</TD></TR><TR><TD CLASS="quote">premiuim gas? have you ever used nitrous?</TD></TR></TABLE>

do you run premium gas? code 23 is a knock sensor, could be the root of your problems there...

 

maybe your dizzy is running retarded...

 

yeah i am using premium, i did run 87 for a while, then realized my car was running like ****.... never squirted

anybody running a gutted cat and experience backfiring at high revs?

 

ttt

 

how bad is it? cuz i compression break and it makes popping sounds alot like a bike. i dunno if this is what your talking about or if its really bad. of course i dont have any codes either.

 

I think my car does the same thing, its from having a gutted cat.

 

My car does this, and i dont have a gutted cat. WHen it gets alot of gas then it backfires. I needa stop this also. Help needed...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Full Throttle EF &raquo;</TD></TR><TR><TD CLASS="quote">My car does this, and i dont have a gutted cat. WHen it gets alot of gas then it backfires. I needa stop this also. Help needed...</TD></TR></TABLE>

YOu dont have any codes?? I know this problem is really bothering me, i thought it was my exhaust so i changed it.... I guess i could deal with it, but if its a problem, that could be bad for my motor, i would like to get it fixed.

 

Code 23 will only show when the knock sensor is not hooked up/not hooked up correctly. It will NOT show a code when it senses knock.
A little popping with a gutted cat is normal.

 

check your plugs and see what color they are.

 

but the backfiring sounds comes from the front of my car, and the plugs are new and also the wires. I think it might be my dizzy.

 

my plugs are fine, the ks is not hooked up, thats why i am getting that code, and i konw that it makes the car run rich and / or retards the timing, but the popping comes from my exhaust

does anybody know if junkyards will sell used cats? or is there laws against this....because i called my favorite one this morning and they said THEY dont sell them