Ok i ve made a lot of dyno tuning last year.It came down to 318whp and 337wtq sae @12.4 afr.Yes i know i need to lean it to aournd 12.8-12.9 to free up some hp.

The only mod i ve made since is a lsx lid conversion with a slp upper lid and FTRA.And a fuel line relocation kit.

Now today after washing the beauty i took 5 mins to log it in idle since it was smeeling gas a lot(datamaster).To my surprise the car is still idling with equal blm but instead of being at 126-126 like they where all year long last summer they are at 122 then 120 and going lower to 116 and still going down(rich rich rich).

The only problem i had this summer.Is that i capped the evap canister hard line under the car after the fuel line relocation without disable it. And run it for a couple of miles until it would smell gas a lot and that a lot of pressure was building in my fuel tank.I then reconnect it to the evap solenoid under the hood.

Now my blm are really rich(pig rich)..

What could cause this

 

It's possible you trapped enough fuel vapor in the canister to saturate it with wet fuel, and now you are pulling that raw fuel into the engine through the EVAP purge.

 

Man oh man when you need help Injuneer is always there

Well i made some test with and without the evap connected(trying something at least )

I made two logs and run the car on idle for 1500secs of datamaster.There is no difference between evap connected or not in LT BLM term.Im seeing now 118-119 steady(no more 116 or less) and it goes up to 122-122 while the fan is working.The tune that i had was steady 126-126.

So only thing changed since last year:fuel line relocation and ls1 lid setup with ftra.

 

At what speed should my fan come on.I got a 160 degree thermostat and of course a tune.I ask this question because it could be related with heat.

So:

-The first speed should start at:???
-The second speed should start at:???

And by the way where can i see this in tunercat,i think that this is supposed to be in the *constant* table and it should be *Fan thresholds low mph*...But all i got in the table are the high speed wich is zero...I wanna see where those number are set...

Thanks

 

Stock programming is low speed on at 226*F, high speed at 235*F. Is that what you are asking?

I would assume that if you changed to a 160*F t'stat, you would have had the PCM reprogrammed to turn the fans on at a lower temperature, say something around 185-195.

 

Mine is at 180-185 Thanks i was reading the sticky and couldnt found the constant table for setting those temp...until google helped me.The fan temp control now got its own table *fan enabled coolant temp vs speed*

This has not been updated in the sticky thats why i was searching why those constant table was missing.

Thank you