running rich

[IanS13]

hello guys i got a walbro 255 running 5-7psi it's goes between 5-7psi any how all i got is a fmu and at idle or when am not under boost the car runs rich because i can smeel it, and it does not smell good.

[IanS13]

the car runs good does not bog at all just seems idles at 700rpmnever stalls, exhast is blackpulled the plugs and they look good no massive build up of black smoke. the fuel pressure gauges reads 40psi at idle that's like 2.758bar, could it be the o2 sensor.
Modified by IanS13 at 1:02 AM 12/28/2004

[NateDogg]

The O2 sensor on S13 KA engines isn't used for engine management at idle. I would check the coolant temp sensor and also the fuel pressure should be 34psi with the line connected at idle so that may be your problem right there.

[skatanic28]

yeah its only supposed to be above 40 psi near WOT. what kinda vac are you pulling at idle?

[IanS13]

vac are 16-20hg at idle some times it's a good 20 but most of of the time it'a around 16

[IanS13]

The O2 sensor on S13 KA engines isn't used for engine management at idle. I would check the coolant temp sensor and also the fuel pressure should be 34psi with the line connected at idle so that may be your problem right there.

coolant temp sensor ? if you don't mind me asking what does that have to do with fuel, the car does not over heat and it always stays under half way.

and i have a another question on my na car it takes like 15mins for the damn heater to heat up, on my turbo car it takes less than 2 mins what's the deal with that?,