no mass air sensor

[little bear]

can someone one help me tune my ecu to run my stock 5.3 motor with no mass air flow sensor if its even possible

[1970ss8.1]

Try this, or change to a speed density custom OS.little bear tunes1 no MAF.hpt

[cobaltssoverbooster]

should have a 5 wire canister maf in that application if im not mistaken. typically the tan wire pin B in these canister mafs is an IAT signal wire. If you have this setup and you physically removed the maf sensor you would need to install an external iat sensor and then wire its signal wire back into the maf connectors tan wire. if you dont do this then it throws the ecu's density calculations way off and turns the tuning side into a mess.

have you dont this or checked it? you dont have a scanning log file so i cant see the sensor channel activity.

[little bear]

i have a older 3 wire map with a external iat

[cobaltssoverbooster]

well that makes things easy. cool

[little bear]

so all i have to do is try out that tune and i can take out the mass air and leave the iat correct

[1970ss8.1]

Yes