imported_Turbo-D

hey guys my cars running rich, it'll back fire when shifting from 1st to 2nd and 2nd to 3rd. How do i adjust the air fuel mixture to fix this on my SOHC D15B VTEC??? Am i damaging the motor by driving like this??? and whats it mean when the cars running to rich?? is too much fuel? thanks for the help

imported_BoOsTd

to much fuel is correct... reasons why? could be a fualty 02 sensor...

imported_Turbo-D

just had the O2 replaced with the new header i put in. the old one wouldn;t come off. anyhow so yes it is a new O2 sesor and the problem still persists. any other suggestions?? thanks

Mr. Death

I had a problem with backfiring and it turned out to be my distributor.

1sloweg

check your first obvious thing.... air flow path (dirty air filter, dirty throttle plate) Make sure its all clear. Then check how much spark your getting.

dingus88

ok if it's backfiring you are running VERY rich and something is messed up...ever think that hey it was runnign fine before the o2 sensor and header install....well I'd think they fouled the o2 install and your running messed because of that...either way take it back and say "it wasn't spitting flames when I brought it to you )..." let them worry abotu it cause it was their **** up

imported_Torrey

Do a tune-up, plugs, wires, etc... then see what happens.

imported_Turbo-D

it was backfiring before and it still is even after i replaced the distributor cap, plugs, wires, rotor, header and O2 sensor. i did go through all the simple things, oh ya and the air filter is new, its a CAI. how do i adjust the fuel??? or do i need to get a fuel pressure regulator?? any help would be great thanks

ohmstable

Your timing is probably screwed. Double check it.

imported_Turbo-D

i'll look at the timing, is there anything else?? can i not get a fuel pressure regulator to adjust the fuel?? will this fix the problem??? thanks

imported_gatherer

why not first let us know what modifications you've done so that we can first rule one of those out... do you have bigger injectors? different intake? different exhuast?

ohmstable

You won't need a fuel pressure regulator.. Just fix the timing.. I'm almost sure that's what it is

imported_Turbo-D

as far as mods go i have a CAI, Header and cat-back exhaust. I'm gonna get the timing done this week, i was also thinking that is it possible that compression could be low in a cylinder?? I hope its just the timing. anyhow, i'm gonna get the timing checked and have it dyno tuned this week so hopefully i can get that problem solved. thanks

imported_winner007

This will help u.

1. Your camshaft timing belt or chain may have slipped

2. Your ignition timing needs adjusting.

3. There is a serious engine problem.

4. Your spark plug wires are placed on the wrong spark plugs.