Rich Fuel Smell

[Grey]

I have started to notice a very rich fuel smell when the car is cold and being warmed up idle over the past 3 weeks. Engine light is on, my yellow jackets and iridium spark plugs are arriving and ready to install on monday, considering ordering an O2 sensor for fuel efficiency, what could this white smoke + rich fuel smell be?

I've checked the oil levels, water and fuel cap leakage (makes a pshhhh sound when opened so that can't be it), or is it normal to smell really strong fuel around the car when it's warming up + heaps of white smoke? Searched around could it be fuel injectors / filters? Or is it just the exhaust condensing when it's cold?

Car is stock, exhaust is stock, little or no change to idling...

Car: R34 N/A MT

Help welcome! Thanks for the help previously too =D

[BOOZTJUNKEY]

White smoke sounds like condensation in the exaust from cold mornings and if your coilpacks are bugged than it maybe over fueling cause there is not enough spark to burn the fuel on getting dumped in on cold start ...

[Grey]

okay thanks for that i'm replacing them on monday, and since the car is 98k kms old might as well do the o2 sensor too, will save me more money in the long run if i drive highways heaps, THANKS

[Grey]

UPDATE: done replacing coil + spark, car has much more smooth / power feeling, check engine light gone, code cleared, disgusting (not raw) fuel smell remains, anyone know why this is the case? Checked fuel cap too, it's not leaking or anything

[DVS JEZ]

Check that ur fuel pump seal is ok.

The fuel cap might be ok but the ADR compliance inner might be leaking. Its very common. Needs to be removed, cleaned and resealed with gasket goo.

[DVS JEZ]

The disgusting smell can also be caused by crappy fuel. Or ur catalytic converter

[Grey]

The disgusting smell can also be caused by crappy fuel. Or ur catalytic converter

disgusting smell remains, do i have to change my whole stock exhaust to change the catalytic convertor? because i'm looking for an excuse to get a catback

[StevenCJR31]

disgusting smell remains, do i have to change my whole stock exhaust to change the catalytic convertor? because i'm looking for an excuse to get a catback

your cat maybe borked from having so much unburnt fuel going thru it, suggest you get a new cat and zorst at the same time