LS7 Crate engine Fans

[Ccdrrp]

I need help with my ls7 570 hp crate engine swap with the gm obdII computer! The engine runs great (better then expected) but when the cooling fan kicks on at around 205 degrees it will not kick out until you shut off the key. I have 2 fans one runs with the ac on and I have both running with a relay (one wire from the computer) when it hits temp. I’ve let it run after it hits 205 and the fans kick in and let it run for 30 minutes at idle and it will cool down to 172 degrees and the fans never stop. I have tunerpro but am not really well versed so may need some hands on help!! Are there any good shops or people in the Kansas City area that could help?

[In-Tech]

Pretty sure that ECM is going to be an e67 computer with 3 connectors. They can be tuned but I don't know of any freeware for that ECM or any of the CAN based ecm's. Post a picture of it.

[Ccdrrp]

Carl,Thanks for replying!

[In-Tech]

Looks like an e67, it should say on the back, 3 plugs could be an e67 or e78, it is also cast into it between the ribs somewhere. Where are you located?

[Ccdrrp]

I’m about 35 or 40 miles south of Kansas City on the Kansas side.

[In-Tech]

I haven't read out the ls7 gmpp yet. If you can part with it for a few days I'd like to read it for archive sake. I can fix the fans for you at the same time and send back. I'm in 93706

[Ccdrrp]

Carl,

Thanks but it’s car show season so I have the car tied up for now!

Rick

[In-Tech]

No worries Rick, the offer is open whenever you can or want to. :)