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Hello everyone. I wanted to document a fix for a recent code set on my 05 evo 8. I got a P0181 code for the fuel temperature sensor. Just to make sure it wasn't a bogus code, I cleared it twice and it would return every second drive cycle and stay on.
I read a few threads that said dropping the fuel tank was needed since the sensor was in between the two access panels under the rear seat.
Shout out to Boosted Films, (forget his user name here) but his youtube channel has helped me a bunch and helped again with fuel tank removal. I followed the step by step guide on another thread here and used his video for a visual reference.
This job was done on the floor of my garage since I have moved towns and no longer can use my friends shop with lifts.
I used a new OEM Mitsu part # MN120016
I DID NOT have to completely remove the tank. Only lower it enough to fit my hands in the under-seat access. I DID NOT have to remove the fuel/fill lines. I lowered the tank on a jack past the point where you loosen the rear subframe enough to clear the fuel tank. My evo is a souther desert car and does not have any rust, so all nuts/bolts loosened without issue. Once the tank was lowe enough to fit my hands in the access, the fuel sensor was held on by (3) 8mm nuts. The sensor is angled into the tank so that made it possible to remove without much room. (Opposed to fitting vertically in the tank)
After everything was bolted back up, I let the car idle till warm and have driven it several times with no code returning.
On a side note, i have been running E70 fuel exclusively and did not see any build up on the sensor. Seems like a normal age failure.
Hope this helps someone in the future! New sensor Enough access to remove sensor here Old sensor Old sensor
Had the same code awhile back but figured it would be a pain to replace. I ended up switching to an IAT sensor and had the code disabled. This is helpful in the future for when I decide to replace the fuel temp sensor. Thank you!
Hello everyone. I wanted to document a fix for a recent code set on my 05 evo 8. I got a P0181 code for the fuel temperature sensor. Just to make sure it wasn't a bogus code, I cleared it twice and it would return every second drive cycle and stay on.
I read a few threads that said dropping the fuel tank was needed since the sensor was in between the two access panels under the rear seat.
Shout out to Boosted Films, (forget his user name here) but his youtube channel has helped me a bunch and helped again with fuel tank removal. I followed the step by step guide on another thread here and used his video for a visual reference.
This job was done on the floor of my garage since I have moved towns and no longer can use my friends shop with lifts.
I used a new OEM Mitsu part # MN120016
I DID NOT have to completely remove the tank. Only lower it enough to fit my hands in the under-seat access. I DID NOT have to remove the fuel/fill lines. I lowered the tank on a jack past the point where you loosen the rear subframe enough to clear the fuel tank. My evo is a souther desert car and does not have any rust, so all nuts/bolts loosened without issue. Once the tank was lowe enough to fit my hands in the access, the fuel sensor was held on by (3) 8mm nuts. The sensor is angled into the tank so that made it possible to remove without much room. (Opposed to fitting vertically in the tank)
After everything was bolted back up, I let the car idle till warm and have driven it several times with no code returning.
On a side note, i have been running E70 fuel exclusively and did not see any build up on the sensor. Seems like a normal age failure.
Hope this helps someone in the future! New sensor Enough access to remove sensor here Old sensor Old sensor
What bolts did you loosen to get enough clearance ? I’m literally doing this for my evo 8 right now.
What bolts did you loosen to get enough clearance ? I’m literally doing this for my evo 8 right now.
I loosened all of the rear subframe bolts. I think there was 4 or 5 nuts or bolts on each side. I did remove the driveshaft completely out of the way. That gave me enough room to take the fuel tank saddle nuts off to start lowering the fuel tank. I did wait until my fuel light came on so the tank wasn't heavy. I just kept the jack with a small 2x4 for support on the tank and kept lowering it slowly until i had enough room up top.
I loosened all of the rear subframe bolts. I think there was 4 or 5 nuts or bolts on each side. I did remove the driveshaft completely out of the way. That gave me enough room to take the fuel tank saddle nuts off to start lowering the fuel tank. I did wait until my fuel light came on so the tank wasn't heavy. I just kept the jack with a small 2x4 for support on the tank and kept lowering it slowly until i had enough room up top.
doing this as we speak lol. I guess I have to remove the driveshaft 🙃
doing this as we speak lol. I guess I have to remove the driveshaft 🙃
Yea driveshaft removal is a must. I was just glad i didn't have to mess with the fuel filler neck or lines. Just take your time and lower the tank only enough to fit your hands to remove the sensor. Good luck!
