I was on the freeway this morning and everything was going fine then all of a sudden everything went to s**t. My engine just stopped running, so i pulled over and found that the am2 fuse was blown. I found the nearest Toyota dealership and went bought a new fuse for it. I replaced the fuse and cranked the car over and it did manage to start but it wouldn't idle at all it just kept choking out. I managed to get it started again but it only lasted for a mile before blowing the fuse and stalling out on the side of the road again. Had to get a tow home and cant narrow it down any thoughts?
Am2 fuse blowing and car wont stay running
- Thread starter 917mgte
- Start date
You can't narrow what down? That the wire is grounded, or where it is grounded? AM2 feeds ignition and EFI. You could look for the wire that is melted. You could always check for ground at some of the components if you don't see the melted wire.
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=036
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=036
Hey, stuff happens. I suppose it could be the injector resistor or injection noise filter too. Those are also off IG2. More likely a harness problem though.
Check your harness right near the EGR pipe going from the valve to the intake manifold. If the harness is resting on it, there is a good chance that is where your problem is!
I would first focus on the harness, especially where Cy said. That area has been known to cause problems and although it usually involves ECU power the ignition switch return from AM2 also runs through the engine harness on its way to powering the ignition and injectors.