gas!!! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

ZX88 · 05-03-2006, 04:37 PM

Can anyone help me out. I have a 92 fb stock ka24de and 3 inch exhaust im having trouble with my gas milage. im only getting about 200miles to the tank. im pretty sure i should be getting around 360miles to a tank could it be that my engine is misfiring because recently when i put the car in reverse the entire exhaust shakes it also shakes ever once in a while when its ideling.

driftfactory · 05-03-2006, 04:53 PM

Try pulling out the plug wires one at a time while the motor is running. If you pull one and the idle doesn't change, chances are that one is misfiring. Since it only shakes once and a while during idle, my first thought is that there may be condensation interfering with the connection between the plug and wire. If you have any water in there it can cause the exact things you’re describing.

jdm_s14_zenki · 05-03-2006, 05:08 PM

fuel filter and fuel injector service. cheveron fuel injector cleaner is pretty good fromwhat i hear. run a couple of those through your gas tank and change your fuel filter. check your air filter to see if its dirty or needs to be replaced or cleaned. clean your mafs, clean throttle body, ect. sounds like you need a bit of a tune up.

ZX88 · 05-03-2006, 05:19 PM

ill try the plugs tommarow and is the chevron thing something you put in with the gas or is it an actual filter. my engine bay is really clean and i think that the spark plugs are new but ill check tommarow.

jdm_s14_zenki · 05-03-2006, 05:26 PM

the cheveron thing is a fuel additive that cleans your fuel injectors. you put in in your gas tank. id do a couple of em. you can also go to home depot, get some xylene (1gal) $11 dump it into your gas tank with about 8-10 gal of regular fuel, with a capful of ATF oil so you dont dryout your seals and o-rings. that should help too.

*NemeGuero* · 05-03-2006, 09:42 PM

Whens the last time the car was serviced? Give her a good tune up and she'll love you for it.

ZX88 · 05-04-2006, 05:59 PM

i jsut recently had all the fluid changes less than 3k ago and got a new air filter durring that process im taking to my mechanic on saturday. yarrrrgg 24miles 1/3 of a tank.

jdm_s14_zenki · 05-04-2006, 06:09 PM

ya somethings definately wrong there! do you smell any fuel??? unburnt fuel smell? you might have a leak somewhere along the fuel lines.

ZX88 · 05-04-2006, 06:28 PM

i dont smell fuel but ever once in a while it smells like somethings burning the car only has 93,000 on it and i took it for a tune up when i first got it less than 3 thousand miles ago so ethier somthing just happened recently or my mechanic doesnt know what hes doing. damn Chukie

jdm_s14_zenki · 05-04-2006, 06:38 PM

EVERYTIME a mechanic touches my car, something goes wrong. I can only trust myself to do major things like full tune ups, head gaskets, blocks, timing, ect.

Take it back to him and tell him whats going on and see what he says..24miles to a 3rd of a tank sucks man. better yet, sell me your car for 1k and be done with it :x jk

jdm_s14_zenki · 05-04-2006, 06:40 PM

oh, check your plugs, im pretty sure you're running really rich. if you're not, you gotta be leaking fuel somewhere, or its evaporating somehow. and you have to check FUEL PRESSURE. do a search and find out what the specs are for your car. bare with me on the double posts, i cant edit.

NIK90s13 · 05-04-2006, 06:58 PM

Check the basics, fuel filter, Plugs, plug wires air filter, cap, rotor, pcv, o2 censer, and check the wire harness to the o2, that will cause it to back fire.

*NemeGuero* · 05-04-2006, 09:58 PM

Have you eliminated EGR? My Evap vapor purge is still open and I haven't removed the box. For that reason I still smell fuel in my interior. I've gotten used to it.

remove the box, or re-route the line..

Or, if you can't figure out the issue... read or take it to someone who knows what's up.

05-03-2006, 04:37 PM	#1
ZX88 Post Whore! Join Date: Oct 2005 Location: ATX Age: 36 Posts: 2,946 Trader Rating: (8) Feedback Score: 8 reviews	gas!!! Can anyone help me out. I have a 92 fb stock ka24de and 3 inch exhaust im having trouble with my gas milage. im only getting about 200miles to the tank. im pretty sure i should be getting around 360miles to a tank could it be that my engine is misfiring because recently when i put the car in reverse the entire exhaust shakes it also shakes ever once in a while when its ideling.

05-03-2006, 04:53 PM	#2
driftfactory Zilvia Member Join Date: Jun 2004 Location: LA Posts: 200 Trader Rating: (0) Feedback Score: 0 reviews	Try pulling out the plug wires one at a time while the motor is running. If you pull one and the idle doesn't change, chances are that one is misfiring. Since it only shakes once and a while during idle, my first thought is that there may be condensation interfering with the connection between the plug and wire. If you have any water in there it can cause the exact things you’re describing. __________________ The Performance Super Store. Nardi, Silk Road, Agency Power, KAAZ, Peak Performance, Cusco, and More! www.hachilife.com http://www.myspace.com/driftfactory

05-03-2006, 09:42 PM	#6
NemeGuero No more nissan. Join Date: Jan 2003 Location: RAIN, Washington. Age: 40 Posts: 8,132 Trader Rating: (10) Rides Gallery: NemeGuero Feedback Score: 10 reviews	Whens the last time the car was serviced? Give her a good tune up and she'll love you for it. __________________

05-04-2006, 09:58 PM	#13
NemeGuero No more nissan. Join Date: Jan 2003 Location: RAIN, Washington. Age: 40 Posts: 8,132 Trader Rating: (10) Rides Gallery: NemeGuero Feedback Score: 10 reviews	Have you eliminated EGR? My Evap vapor purge is still open and I haven't removed the box. For that reason I still smell fuel in my interior. I've gotten used to it. remove the box, or re-route the line.. Or, if you can't figure out the issue... read or take it to someone who knows what's up. __________________

05-03-2006, 05:08 PM	#3
jdm_s14_zenki Zilvia Addict Join Date: Jan 2006 Location: Orange County Posts: 703 Trader Rating: (1) Feedback Score: 1 reviews	fuel filter and fuel injector service. cheveron fuel injector cleaner is pretty good fromwhat i hear. run a couple of those through your gas tank and change your fuel filter. check your air filter to see if its dirty or needs to be replaced or cleaned. clean your mafs, clean throttle body, ect. sounds like you need a bit of a tune up.

05-03-2006, 05:19 PM	#4
ZX88 Post Whore! Join Date: Oct 2005 Location: ATX Age: 36 Posts: 2,946 Trader Rating: (8) Feedback Score: 8 reviews	ill try the plugs tommarow and is the chevron thing something you put in with the gas or is it an actual filter. my engine bay is really clean and i think that the spark plugs are new but ill check tommarow.

05-03-2006, 05:26 PM	#5
jdm_s14_zenki Zilvia Addict Join Date: Jan 2006 Location: Orange County Posts: 703 Trader Rating: (1) Feedback Score: 1 reviews	the cheveron thing is a fuel additive that cleans your fuel injectors. you put in in your gas tank. id do a couple of em. you can also go to home depot, get some xylene (1gal) $11 dump it into your gas tank with about 8-10 gal of regular fuel, with a capful of ATF oil so you dont dryout your seals and o-rings. that should help too.

05-04-2006, 05:59 PM	#7
ZX88 Post Whore! Join Date: Oct 2005 Location: ATX Age: 36 Posts: 2,946 Trader Rating: (8) Feedback Score: 8 reviews	i jsut recently had all the fluid changes less than 3k ago and got a new air filter durring that process im taking to my mechanic on saturday. yarrrrgg 24miles 1/3 of a tank.

05-04-2006, 06:09 PM	#8
jdm_s14_zenki Zilvia Addict Join Date: Jan 2006 Location: Orange County Posts: 703 Trader Rating: (1) Feedback Score: 1 reviews	ya somethings definately wrong there! do you smell any fuel??? unburnt fuel smell? you might have a leak somewhere along the fuel lines.

05-04-2006, 06:28 PM	#9
ZX88 Post Whore! Join Date: Oct 2005 Location: ATX Age: 36 Posts: 2,946 Trader Rating: (8) Feedback Score: 8 reviews	i dont smell fuel but ever once in a while it smells like somethings burning the car only has 93,000 on it and i took it for a tune up when i first got it less than 3 thousand miles ago so ethier somthing just happened recently or my mechanic doesnt know what hes doing. damn Chukie

05-04-2006, 06:38 PM	#10
jdm_s14_zenki Zilvia Addict Join Date: Jan 2006 Location: Orange County Posts: 703 Trader Rating: (1) Feedback Score: 1 reviews	EVERYTIME a mechanic touches my car, something goes wrong. I can only trust myself to do major things like full tune ups, head gaskets, blocks, timing, ect. Take it back to him and tell him whats going on and see what he says..24miles to a 3rd of a tank sucks man. better yet, sell me your car for 1k and be done with it :x jk

05-04-2006, 06:40 PM	#11
jdm_s14_zenki Zilvia Addict Join Date: Jan 2006 Location: Orange County Posts: 703 Trader Rating: (1) Feedback Score: 1 reviews	oh, check your plugs, im pretty sure you're running really rich. if you're not, you gotta be leaking fuel somewhere, or its evaporating somehow. and you have to check FUEL PRESSURE. do a search and find out what the specs are for your car. bare with me on the double posts, i cant edit.

05-04-2006, 06:58 PM	#12
NIK90s13 Zilvia Junkie Join Date: Jan 2006 Location: texas Age: 58 Posts: 471 Trader Rating: (0) Feedback Score: 0 reviews	Check the basics, fuel filter, Plugs, plug wires air filter, cap, rotor, pcv, o2 censer, and check the wire harness to the o2, that will cause it to back fire.