help, Junk fuel economy - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Anubis · 06-25-2003, 01:49 AM

Alright guys, i just tuned up my car, you know oil, plugs, wires etc. and i'm still getting poor fuel economy. I think the injectors are clogged or something. When i took out my old fuel filter, it was so clogged you could hardly blow thru it. How should i go about cleaning injectors? thanks.

fridexter · 06-25-2003, 02:45 AM

Italian tune-up!

kalieaire · 06-25-2003, 03:22 AM

how's the idle?

Red · 06-25-2003, 09:20 AM

Have you even looked at the 02's???

Thats what was killing my fuel...

They sell injector cleaner all over... I think you run it through your car... cleans the whole system.. I'ma look into this for my car... I'm pushin 290 on a tank when I drive like a good boy... I think I can get it better.

Anubis · 06-25-2003, 12:26 PM

i get 200miles per tank driving regularly. My intake temp. sensor is broken as well, this may be soemthing that is contributing to the problem.

highly responsive · 08-06-2008, 12:45 AM

Hey guys, with my 89 KAE coupe, I was getting horrible gas mileage when I first got it. I would guess somewhere around 10mpg. Gas was literally spilling out the damn car.

I upgraded my fuel filter to the 300zx, when I took the stock one out, i shook the contents out and thick MUD came out. I put 7.373 gallons of 91 octane (30 bux) when my fuel light came on and I put 209 miles on it so far (about 75/25 freeway/city driving), my tank is almost empty but fuel light has not come on yet. Say my light were to come on right now, 209 miles divided by 7.373 gallons would mean im getting about 28.4mpg. Cant wait to see what Im looking at when my fuel light finally comes on.

Do they make something like ScanGauge for OBDI cars?
ScanGaugeII - Trip Computers + Digital Gauges + Scan Tool
I would like to see a more accurate analysis of my fuel economy...

**edit**
damn, i just realized how old of a thread i just bumped up.

**mrmephistopheles** · 08-06-2008, 01:33 AM

Quote:

Originally Posted by highly responsive

**edit**
damn, i just realized how old of a thread i just bumped up.

Well, at least you caught yourself. I'll let this one slide.

06-25-2003, 01:49 AM	#1
Anubis BANNED Join Date: Nov 2001 Location: SAN DIEGO, CA Age: 39 Posts: 990 Trader Rating: (0) Feedback Score: 0 reviews	help, Junk fuel economy Alright guys, i just tuned up my car, you know oil, plugs, wires etc. and i'm still getting poor fuel economy. I think the injectors are clogged or something. When i took out my old fuel filter, it was so clogged you could hardly blow thru it. How should i go about cleaning injectors? thanks.

06-25-2003, 03:22 AM	#3
kalieaire Zilvia Member Join Date: May 2002 Location: Milpitas, CA - SFBA Posts: 222 Trader Rating: (0) Feedback Score: 0 reviews	how's the idle? __________________ - -- - '93 240sx coupe '93 taurus wagon -kalieaire (maybe grinder too on special occasions)

06-25-2003, 09:20 AM	#4
Red Zilvia Addict Join Date: Feb 2002 Location: Vancouver, WA - Portland, OR Age: 44 Posts: 734 Trader Rating: (0) Feedback Score: 0 reviews	Have you even looked at the 02's??? Thats what was killing my fuel... They sell injector cleaner all over... I think you run it through your car... cleans the whole system.. I'ma look into this for my car... I'm pushin 290 on a tank when I drive like a good boy... I think I can get it better. __________________ http://www.cardomain.com/memberpage/509537 http://www.imagestation.com/album/?id=4287415487 http://www.zilvia.net/f/showthread.php?t=21036

06-25-2003, 02:45 AM	#2
fridexter Zilvia Member Join Date: Dec 2001 Posts: 197 Trader Rating: (0) Feedback Score: 0 reviews	Italian tune-up!

06-25-2003, 12:26 PM	#5
Anubis BANNED Join Date: Nov 2001 Location: SAN DIEGO, CA Age: 39 Posts: 990 Trader Rating: (0) Feedback Score: 0 reviews	i get 200miles per tank driving regularly. My intake temp. sensor is broken as well, this may be soemthing that is contributing to the problem.

08-06-2008, 12:45 AM	#6
highly responsive Leaky Injector Join Date: May 2008 Location: Paradise, NV Posts: 110 Trader Rating: (1) Feedback Score: 1 reviews	Hey guys, with my 89 KAE coupe, I was getting horrible gas mileage when I first got it. I would guess somewhere around 10mpg. Gas was literally spilling out the damn car. I upgraded my fuel filter to the 300zx, when I took the stock one out, i shook the contents out and thick MUD came out. I put 7.373 gallons of 91 octane (30 bux) when my fuel light came on and I put 209 miles on it so far (about 75/25 freeway/city driving), my tank is almost empty but fuel light has not come on yet. Say my light were to come on right now, 209 miles divided by 7.373 gallons would mean im getting about 28.4mpg. Cant wait to see what Im looking at when my fuel light finally comes on. Do they make something like ScanGauge for OBDI cars? ScanGaugeII - Trip Computers + Digital Gauges + Scan Tool I would like to see a more accurate analysis of my fuel economy... edit damn, i just realized how old of a thread i just bumped up.