LS swap for my 75

[phillipm]

What ECU are you using?

[lowrodderchev]

Originally Posted by phillipm

What ECU are you using?

its a 2001 ECM. the guy who did it is going to check it out Saturday because I'm still having a issue with fan#2. its pulsing a signal so its not staying constant to keep the fan running

[lowrodderchev]

yea so funny story. I have 2 fans behind the radiator(in front of the water pump) and um well I wired them backwards. I mean I wired them right if the fans were in front of the radiator but in this case well you know. they were puling air from the motor instead of pushing it. so on my 20 minute drive to work I was getting a 195-197 reading.

[phillipm]

Originally Posted by lowrodderchev

yea so funny story. I have 2 fans behind the radiator(in front of the water pump) and um well I wired them backwards. I mean I wired them right if the fans were in front of the radiator but in this case well you know. they were puling air from the motor instead of pushing it. so on my 20 minute drive to work I was getting a 195-197 reading.

Glad you got it figured out.

[lowrodderchev]

yeah so you were right my thermostat was ok

[lowrodderchev]

so far so good this bad boy has a massive amount of power. currently dealing with a fuel gauge issue. weather the sending unit is plugged in or not it pegs to 3:00 I have a new gauge and sending unit and replace the sending unit wire. so I'm at a lost right now. I also deiced to shoot some satin black on it.

[lowrodderchev]

Man I got no luck. I put a new sending unit, new fuel gauge and it still dont work. I tire it down today so my brand new sending unit isn't working or the 75 gauge dont work with 87 sender

[terrylgreenjr]

Did you check the ground from the sender to the frame?

[lowrodderchev]

Yes sir. I pulled the sender out of the tank and both my old and new one grounded to the sane spot. My original one work like a charm the new one didn't. It goes straight past full to 3:00 position