Issue when starting r33

[CroatianDlite]

Hey

I got an on going issue when starting up my r33. no matter when, type of weather, or if the car is warm or not, 9/10 there will be a heavy smell of raw fuel coming from ... somewhere ... it last for about mayb 5 secs or a little bit more. i havent figured out where its coming from, cuaz its soo strong. but there are no leaks and after a quick inspection on the hoist, cant seem to see any cracks underneath near the tank, or in the engine bay, OR signs of leaking.

i was wondering ( of course ) if anyone knows what could be the problem here...

also is the neck that goes from the fuel cap to the tank (that brass coloured part) meant to be loos? i can easly pull it off!

anyways, please ask questions if need be... (btw - no mods, pretty standard, exhuast, and yeah lol)

thanks in advance

[thommo]

I have exactly the same thing happen, not quite as often, on my NA r33. be interested to know what the problem is...

[Cubes]

I think its fairly normal.

I generally only get it when the car is cold though.

How is fuel economy? Check out your ecu's coolant temp sensor (not the temp guage sensor)

[CroatianDlite]

ive changed the o2 sensor and that weekend i got 200km from half a tank... then it went crap again max 250km on a tank

recently replaced air filter with a K&N filter getting up to an extra 100 km driving normal.

next thing i guess is the coolant temp sensor! hehe...

but yeah recently, i can smell it constantly... like each time i start.

like i said once every 10 times it doesnt smell... but its soo overpowering it cant be normal! haha!

people are scared to light up a cigarette near my car! lol (which is a good thing...)

[CroatianDlite]

I think its fairly normal.

 

I generally only get it when the car is cold though.

 

How is fuel economy? Check out your ecu's coolant temp sensor (not the temp guage sensor)

how do i check that? -?

[nmcmahon83]

200km to a tank!?

Do you boost it everywhere you go or something...

I can usually manage 500km from a tank (but i guess that is half freeway half traffic) but still... Yowsers.

My car runs really rich at start up, but its not a raw fuel smell so i cant help you.

[CroatianDlite]

200km to a tank!?

Do you boost it everywhere you go or something...

i wish. i used to struggle to get to 250, driving at a max of 3K rpm every gear! it was painful trying to figure out how far i could get without going over that.

500km... u lucky bastard. thats all i can say!

i reckon thta fuel smell has something to do with it.. like evaporation from somewhere

i dont mind putting te fuel in each week.. its the fact that if i go for a drive i have to plan the drive so i know i wont be pushing my car to the nearest full station! and it really annoing.

[wrxhoon]

I think you will find that it leaks from the filler neck or the fuel cap .

After you been driving for a while especialy on a hot , warm day , take the cap off if there is no hissing sound it means that it leaks .

A lot of imports leak from the filler neck because the put them in here and they don't glue them in promply so they are not 100% airtight .

To fix it you have to take the filler neck out and reglue it but first make sure the cap doesn't leak .

[Cubes]

I used to get 500km's to a tank with the rb20t am still with the RB30DET.

Sure I'm not on boost with the RB30DET as I've wired the wastegate open but i'm sure as hell giving it stick every where.

I would look at the engine temp sensor & also the O2 sensor but first as WRXhoon suggested.. Make sure the petrol tank isn't letting vapours out and wasting fuel.

250km's to a tank. That would be very very depressing.

My old VS 5ltr Commodore after its cam etc used to still be able to nudge 400km's to a tank. (it was a larger tank though).

I sold it because it was heavy on fuel and sloooow..

lol.. Had a nice note though...

[croat]

CroatianDlite i have the same deal, the brass piece that the fuel caps screws into is loose! I hear that they are only there for compliance and are not needed in japan? I was thinking of using glue to seal it but not sure f its a good idea... Anyone?

[CroatianDlite]

yeh wrxhoon... that was my first thought. becuase every other car- there is a gass release except my one! haha... im gonna have to go to a decent mechanic, not one that thinks he knows everything...