heat and miss problem

[Injuneer]

.......... would you know if there is more than 2 realys for the fan because i think something is wrong there too as far as i know 1 should kick on at about 200 or so and it doesnt it would wait till 240 which i know is a unsafe temp and then they would both kick on if you have any ideas i would appreciate it my uncle would help me with everything car wise and im on my own now he past away a few years ago also that is 1 sick bird you have

The stock programming turns the first fan on at 226*F. The second fan comes on at 235*F. This is only for the 93 and early 94 LT1's. From late 94 to 97 at 226*F both fans come on at low speed and at 235*F both fans go to high speed. This is done using a 3 relay system.

[FTA1995]

Great info guys thanks, pictures say it all

[93grnbird]

ok i did get the gen 1 thermostat so i will have to invest in a gen 2 and i guess it wont make a difference on which opti i get so like a msd would do the same as a any other and the rebuild kits are much cheaper is a kit hard to do yourself