What issues are you still having or is it just the temp logging inconsistencies?

I can look at your rom> sk8tull at yahoo dot com

 

Now I'm thinking that you can't just change the scalings for the Sd Tables and MAT tables. You can probably get away with it on the Maf input but the Fuel temp input i don't believe so.

 

the car seems to be running ok, its just the inconsistancies of the MAT and IAT but I've been thinking as long as the car is using the IAT as the temp (as my temp sensor is connected to the MAF) then I don't have to worry what the MAT temperature is logging? (unless its used for something else)

As far as I'm aware I'm not using the fuel temp as an input.

Andy

 

You're not using fuel temp unless you physically wired it in to the ecu pin.

Now you're logging MAT correctly right? ...0x03 (SD Convert IAT to MAT)

 

yep using 0x03

 

I logged my air temps and the values look fine. No drastic fluctuations

 

Quick question if I'm using Rom 88591517 do I have to add the mat patch because I do not see those options on the left side column

 

i believe you do.

 

Ok, even if i wired the gm iat to the maf harness?

 

I don't believe u do. Only for fuel temp input usage.

 

Ok great thanx, also when scaling the SD iat scaling do I scale the right side of it with the scale spoolinup has on his website? I use the celcius table right?

 

Yes celcius.

 

To the op. What did you end up doing to fix your GM IAT reading? Mine reads 195F also in my 60F garage but driving around in 70F weather it reads 170. Obviusly my scaling is not correct. Does anyone have the correct scaling for it? Mrfreds patch is dead.