Connect a fuel pressure sensor (or other pressure sensor)
- Thread starter EricM
- Start date
turbobuick
Well-Known Member
Hi Eric lmk if you had time to look at that file and figure out why I can't get the trans temp sensor to work? I road raced the car last Friday for the first time and the trans vented fluid all over the place and I am concerned about the temps. I have another track outing on the 7th and an event the 15th-17th I am trying to get ready for.
Thanks
Thanks
I don't see anything wrong with the tune. It is defaulting to 180 because its not seeing a signal (same as the coolant default).
I ordered one of those sensors so I can investigate further.
If you change the transformation to "raw", 0v=0 and 5v=1024. WIth the jumper on, you should see around 1024 (5v) with no sensor connected. It should drop down if you connect the sensor, assuming the sensor works, and the ground is ok.
I should get the sensor in a day, so I can test.
I ordered one of those sensors so I can investigate further.
If you change the transformation to "raw", 0v=0 and 5v=1024. WIth the jumper on, you should see around 1024 (5v) with no sensor connected. It should drop down if you connect the sensor, assuming the sensor works, and the ground is ok.
I should get the sensor in a day, so I can test.
turbobuick
Well-Known Member
I did what you said to do and got nothing just the 1024. I went out and bought a new sensor and tried it again and samething. I made two test leads and tried it at the ECU and it worked dopping to 450 when I connected it. I think the stupid Dorman (645-900) Pigtail I bought and paid $20 is bad!
You dont happen to know what the part # is for that connector and terminals to make one do you?
Thanks for the help
Last edited:
Shaundonwe2
Active Member
I made my own harness for this and I’m using low doller transducers, how do I set up the values so they read right on computer? I’ve already created a fuel pressure gauge in tuner studio
turbobuick
Well-Known Member
Lowdoller list all the values on thier website. The 0-100 psi sensor is .5v/0psi to 100ps/4.5v. So since tunerpro makes this more difficult than it needs to be I believe your linear values end up being -12.5 and +112.5? I used a SSI 12v sensor and to get it to read right I have -25 in for 0 and 100 in for 5v and don't really trust that is right. I am planning to test it this weekend and suggest you do the same especially for FP.
turbobuick
Well-Known Member
As I suspected it was low 2.5psi. I adjusted the upper limit to 105.5 and it is now spot on at least for 30psi and 0. So my linear settings for the 12V SSI 0-100 transducer is -25 and 105.5.
turbo nasty
Active Member
Those sensors are known to leak through electrical plug. Danger
turbo nasty
Active Member
IME any sensors other than Honeywell or SSI with fuel is sketchy