95 Hardbody

I just bought a 95 Nissan Pick Up extra cab with the 2.4 liter 4 cylinder engine and 5 speed manual transmission. The check engine light is on and I managed to get the codes. There was 2 codes stored on the ECU which were Code 41 and Code 42. I found the problem for Code 41 and corrected it. The check engine light now comes on when I accelerate and stays on for a while and then goes off when I'm driving down the road. It keeps on turning on and off. I have not had a chance to recheck the ECU for any new codes. Code 42 shows there is a problem with the Fuel Temperature Sensor. My question is this:
Where exactly is the fuel temperature sensor located? After being on here for a couple of hours, the only thing I have read is one person say it is in the gas tank, is this true? How much do Fuel Temperature Sensors run? What exactly do Fuel Temperature Sensors do?

I really need to get this thing fixed so I can smog it, yes I live in California. Any information provided will be helpful since this thing has me almost pulling my hair out.

 

88pathoffroad

I have no idea. The "fuel temperature sensor" is a non-self diagnostic item and isn't listed anywhere in any of the repair manuals I have, even the factory service manual. Testing procedures are listed for #35, then it skips to #42. Perhaps it's the intake air temp sensor mounted on the air cleaner somewhere instead?

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SPEEDO

fuel temp sensor is mounted on the fuel pump/sender assembly, the sensor runs about $20-$22

95 Hardbody

Do you know if any of the chain auto parts store carry them, or do I have to go to Nissan? Do you have a part number or OEM number for the sensor? Thanks ahead of time. Also, should I just replace the fuel pump while I'm at it? I'm thinking about doing that as well since I'll have the fuel tank down.

95 Hardbody

OK, for those of you who care or are interested. I ordered the sensor today at the local Nissan dealership and it ran me about $32 out the door. It had to be ordered because of the age of the truck (It is no longer stocked). I went to the dealer because no one seemed to carry it. I personally checked the catalogs at Autozone (I used to work there to they're cool with me) and their supplier (Wells) didn't even show it in there. I have the Nissan OEM number if any one is interested. Oh for those of you who responded, thank you, I appreciate your input. I plan on changing out the sensor this weekend and will post up how it went if any body is also interested.

 

95 Hardbody

Again, for those of you who care and for those who will do a search in the future when they get a "Code 42", I changed out the sensor over the weekend. I dropped the gas tank and pulled the whole fuel pump assembly out. The sensor plugged into the whole assembly at the top part of it and the sensor part of it clipped towards the bottom of the gas tank. For some reason or another the wires to the sensor came undone where it was sodered at the sensor. I was going to resoder it, but for $32, I chose to do it the right way and put the new one in. I put it all back together and the check engine light never came back on again (with the exception of when you first flip the key on so that you can see its working). I then ran to the smog station and it passed with flying colors, yes I live in California (I did mention that, right??). Looking back at it, It might have been a little bit easier just removing the bed instead of dropping the gas tank.

VG30 bulletproof

Hi, glad to hear you got it fixed. I was a Nissan Tech for years and I found the easiest way to get to the fuel tank is lift the box. If you loosten the mounting bolts on the oposite side of the tank, and remove the bolts on the tank side from the frame you can actually lean the box over to one side to almost 30 degrees. This will give you ample room to work.

Sorry for not being around to help you sooner, I'm a newbie as of today!

z50

I just ran across the exact same problem on my 1996 Pickup. Re-soldered the wire on the sensor (ECM flashed code 0402). The tip on raising the bed was great also.

Thanks again.