My 2001 Yukon keeps blowing the ECM fuse. I replaced the fuse a few time untill it would stay running but it runs rough as heck. stales out idal really low. I have it in the shop getting a fuel pump put in it now. But the shop is telling me the next thing to replace is the ECM unit if the pump doesnt do it. I cant afford to be dumping money in this truck. It has been a good truck untill now.
Can anyone help me out before I buy a toyota..

 

The ECM is not blowing the fuse. Take the truck somewhere else if it continues. Is the fuse that is blowing labeled ECM B?