[IanH]

[QUOTE='98200SXse]Well I know my mileage has went down here lately, since my Check engine light has been coming on / going off. I normally shift around 4-5K (5 speed), and I am hard on it sometimes w/ high speed full pedal to the metal, but I've been getting around 29 mpg, and it seems to be slowly dropping. I know my check engine light is on due to some of my emissions system not functioning correctly, Im also due for a tune up (77,000 miles). I also have 2.25 inch exhaust w/ magnaflow muffler so thats not helping, but when I first got the car I was getting nearly 38-40 mpg before I put on the exhaust/intake/ 17's rev wheels ; ( . Now I can't seem to get 30 mpg out of it, and my parents v-6 Buick century (4 door family car) gets more than I do !![/QUOTE]
I had the same problem when I upgraded my wheels......
Drive faster harder with mods plus the drag from the bigger wheels and tread.
I get 25 mpg with 5 sp around Dallas and 28 - 32 on the freeway at 80 ish.

 

[IanH]

hey nos...what about me?

Fuel gauge is relatively simple. Assuming the voltage is correct at the cluster i.e. other gauges are fine, you only have the sender in the tank and the gauge head.
There is normally a way to check the gauge head in the cluster by shorting and opening the sender unit. On other cars when you do this the needle lines up with little white marks on gauge face. I don't know if Nissan is the same, cant find it in the FSM Factory Service Manual, see sticky at top of B14 section.

See FSM page 91 in EL section to test resistance of the sender. Measure the resistance, should be full at 36 ohms and empty at 129 Ohms.

So if you put this target resistance in place of the sender the gauge head will read full at 36 ohms and empty at 129 Ohms.

A Final comment, if your odometer and fuel gauge are both bad it may be time you looked for a replacement cluster. Got mine with matching milage on odometer for $50.

Hope this helps, good luck........

 

[IanH]

Fuel gauge is relatively simple. Assuming the voltage is correct at the cluster i.e. other gauges are fine, you only have the sender in the tank and the gauge head.
There is normally a way to check the gauge head in the cluster by shorting and opening the sender unit. On other cars when you do this the needle lines up with little white marks on gauge face. I don't know if Nissan is the same, cant find it in the FSM Factory Service Manual, see sticky at top of B14 section.

See FSM page 91 in EL section to test resistance of the sender. Measure the resistance, should be full at 36 ohms and empty at 129 Ohms.

So if you put this target resistance in place of the sender the gauge head will read full at 36 ohms and empty at 129 Ohms.

A Final comment, if your odometer and fuel gauge are both bad it may be time you looked for a replacement cluster. Got mine with matching milage on odometer for $50.

Hope this helps, good luck........

No little white lines on my Nissan gauges....