Help!! fxstsse 2007 w zippers autotune

i hope someone can help me. i just recived the thundermax with autotune for the 3rd time from zippers and was told the probluem was in the bike. when the bike is cold she starts up and runs great, however when it is hot and i shut her down and try to start her the ecm fuse blows. i replaced the iac motor like they said but still blows the fuse. the hd ecm works great... has anyone had a problem or a fix for this? i have a fxstsse 07 (110 eng with stock cams, v&h long shots and a high flow ac. the map is 545 from zippers.
PLEASE HELP, THEY WON'T TAKE IT BACK!!!!!!!!
THANKS IN ADVENCE FOR TAKING YOUR TIME TO READ THIS.
MARK G. @ MLGOTTLIEB@VERIZON.NET

stupid question do you have acr on the bike ? and what amp fuse is on the ecm circuit dont forget you are now heating up two wide band o2 sensors.the tmax when cold starts in open loop and than slowly heats up the wide band sensors . when hot at startup goes in to close loop wright away.with the stock ecm you are not turning some things on like heated 5 wire o2 sensors!is the fuse a 15 amp?

check the front and the rear o2 sensor wiring for chafeing or grounding out on the frame or exhaust. take a real close look at the rear thats were lots of people over look the route of the wires . heat expands metal and some thing might be coming in contact with the wires causing it to ground out a hot lead.and burning the fuse. hook the lap top up and link the thundermax . look at data when its hot make sure both o2 are working all the time when hot ? if fuse blows replace it un plug the sensors and replace thefuse restart the bike does the fuse blow? if not plug the sensor in one at a time and see if the fuse blows at start up . if so thats were your problem is. heater circuits pull lots of amps!!!!it takes a lot of amperage to heat up o2 sensors .

Hello,

Thank you for your sharing information about auto tune. You are so right, it is extremely tight under seat. That is why they are selling the Zippers with Autotune. so they can get rid of all of the old fxstsse. When I called and inquired about a ThunderMax Module with AutoTune they did NOT mention the GEN 2 unit. I guess they don't want to get fxstsse 2007 with all those old units. But they should tell new people calling and let them choose if they want the zippers auto tune for regular price or a older fxstsse 2007 for a discounted price.

Thanks a lot
Anthony Martello

Thanks for getting back to me, this was all done, o2 disconnected, 15 amp fuse replaced, like I said I pull the tmax and put the hd ECM in and it starts with no prob. The amp on the o2 should not blow the fuse. They draw under 7 amps together.

did you current ramp the circuit . just cause it says they pull seven amps does not mean its pullin seven they may pull more ? does the fuse blow with them disconnected? please read my whole post to you and answer the questions that i gave you im not trying to be an ass i just want to help! YOU CAN ALSO DISCONNECT THE AUTO TUNE AND JUST LEAVE THE T MAX CONNECTED AND SEE IF IT BLOWS THE FUSE. IT WILL HELP FIND OUT IF IT THE T MAX ECM OR THE 02 CONTROLLER . SOME THING IS OVER LOADING THE CIRCUIT AND I HAVE THE FELLING ITS IN THE 02 HEATER CIRCUIT THERE IS NOTHING ON THE SENSOR INPUTS OTHER THAN THE FUEL PUMP DRIVER CIRCUIT FOR THE ECM THAT WILL DRAW THAT MUCH AMPERAGE . ALL THE SENSORS ON THE BIKE WORK WITH A 5 VOLT REFERANCE . THERE IS A VOLTAGE REGULATOR BUILT IN THE ECM TO DROP FROM 12 VOLTS TO 5 VOLTS OUT PUT TO THE SENSORS . TRUST ME I DO DRIVABILITY ALL DAY LONG . IF YOU BREAK THE SYSTEM DOWN TO TWO PARTS WE WILL BE ABLE TO FIND THE SHORT.!!!!

I'm @ work now, when I go home I'll run the tm with the o2 disconnected. Ill have to ride it to heat up then see if it blows after I shut down and start up.
Thanks;
Mark

ok brother you got it we are here to help thats what this fourum is all about

what!

what!

that will get a rise outa him

Man if'n the unit works great with the stock ECM, there is no reason for it to blow a fuse when you hook the unit up.

Hope you followed the instructions and pulled the ecm fuse before you install the TM. And put dieletic grease on all the plugs.
Then put the ecm fuse in and initialize it.

When does the fuse blow as soon as you put it in or when you turn the key on.


You need to be home and with yer computer and call Randy at Zippers and talk to him during the week.
I got a TM on my bike, put the one off my 07 bike on a buddy's bike, and my buddy down the street has one on his bike.
No problems out of any of them.
Everything is Plug and Play.

Chech the pin connectors on yer plug
Make sure non of them ain't bent

Randy can't help, it blows when I crank it and the Eng. Is hot

Sounds like when yer bike gits hot, yer starter gits hot and its drawing so much amperage its blowing the fuse.