Civic EG

Since I put intake exhaust and header, car smells like its running rich. Is there a way to correct this since I don't have a tuned ecu? Is there a way to adjust the dizzy or do I need to buy something else to deal with this? Any advice would be appreciated.

Is your o2 sensor hooked up? did it get touched? If you touch the part that goes inside the header it will stop working properly.

I didn't touch the o2 sensor. On a side note, every time I added a new item to the system, I pulled the ecu fuse to allow the car to adjust to the new setup.

95c1v1c wrote:I didn't touch the o2 sensor. On a side note, every time I added a new item to the system, I pulled the ecu fuse to allow the car to adjust to the new setup.

I'm pretty sure it doesn't work like that

well you wont need to adjust the timing or get a tune for the mods you have. Just double check your connections and vacuum lines. Double check to ensure there isnt an exhaust leak somewhere in your setup.

yeah the stock ecu will handle those changes fine.

maybe you're smelling the hew header burning in, no reason for the car to run rich from those mods.

did you get an exhaust setup without a cat? cause that will definitely smell different then with a cat.

Ill check vacuum lines and stuff. Don't think I have an exhaust leak. I have old hose...where is the worst place for vacuum leaks?

95c1v1c wrote:Ill check vacuum lines and stuff. Don't think I have an exhaust leak. I have old hose...where is the worst place for vacuum leaks?

check all the lines going in/out the intake manifold

95c1v1c wrote:Since I put intake exhaust and header, car smells like its running rich. Is there a way to correct this since I don't have a tuned ecu? Is there a way to adjust the dizzy or do I need to buy something else to deal with this? Any advice would be appreciated.

u just basically enlarged things. more exhaust will come out. so u will smell it more.. obviously. did u keep your factory catalytic converter or did u get the full ebay special with the "high" flow test pipe? if you did ur def going to smell more fumes than normal and FYI this is normal...

I kept the factory catalytic converter for back pressure, maybe it is bad or something. I think all my hoses are good.

Even if you did need to adjust timing, you wouldn't retard it. Retarding your timing would allow the piston to travel further up the cylinder before triggering the spark. This would increase the odds of detonation and/or pre-ignition.

If you needed to adjust your timing, you would need to advance the timing. This allows for an earlier ignition event, resulting in a somewhat higher combustion pressure by the time the piston reaches TDC compression stroke and starts it's downward travel in the power stroke as well as reducing the risk of damaging detonation and/or pre-ignition.

In addition to everything that has been said...

Adjusting the timing will not affect the fuel.

Keep the timing stock. Advancing the timing causes the flame front to peak as the piston is still traveling upwards. Thus it fights the piston on the way up reducing your engine's output. The only way to know is with a dyno.

Touching the O2 sensor doesn't hurt it.

That One Dude wrote:Retarding your timing would allow the piston to travel further up the cylinder before triggering the spark. This would increase the odds of detonation and/or pre-ignition.

... wut?

Thanks for the inputs...I won't mess with timing.