Replaced the fuel level sending unit in 2005 Xterra...how do I get my Service Engine Soon light off?

if you smell gas. the service engine soon light should be on. It may be several things, parts of EVAP system, but I would look at the top of the fuel tank. Nissan has campaign on fuel tanks, where they replace the sending unit, but if the tank is corroder beyond repair aka getting re-sealed, then Nissan will replace your tank for FREEEEEEEEEE along with the sending unit. Just go to your local Nissan dealer and have them run you r VIN number to see if you have campaigns on you r truck. You may also have the lower steering shaft campaign. have your VIN checked. start there.

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You won't like what you read

The dealer may replace the sending unit, as all fuel
tanks are deformed ,all radiators leak,etc,not good

Well that is a indicator something is wrong, if possible have check and find out code. That will tell you what the problem is? Some auto parts places check codes for free

There is no fuse to remove, this is computer controlled, you can use a scan tool to reset check engine light or remove a battery terminal for 5 minutes, the only problem is the computer is always testing all sensors and systems so the light will come right back on, this will make you fail an emmisions test, try reseting and see how long it take to come back but it will come back on, also check the ground wire on the frame from the sendind/fuel pump module. hope this helps.

The fuel sending unit is at fault. The ses light will come on as a resuilt.

just replaced my fueld sending unit on my 2006 x-terra with only around 40,000 miles. This should be a recall pretty soon.

Sending unit died. can be expencive to replace since most sending units are integral with the fuel pump now. lots of labor too. Better to use the trip odometer till you can afford a day without your car and a $600.00 +labor repair bill.

sound like fuel sending unit has a loose wire or need replacing.

The fuel level sending unit is bad. Part is $90 from dealer. You can replace it yourself and save $500 from stealership. Drop gas tank and remove fuel pump. Sending unit is attached to fuel pump.

the problem would be that of the fuel gauge which in newer models are mounted in the fuel tank, or the fuse for the gauges are burnt out, or there is a loose connection