Thread: MAF Fuse Blowing

My car keeps blowing the MAF fuse. I beleive it is the number 21 fuse thats under the hood. It will go days without blowing, or just after a few start ups. It seems to blow on startup. I am at a loss and would really appreciate any feedback. There wasn't any prior engine work before this issue appeared. Thanks for anybody who can help.

Check your wires. You have a short somewhere. The MAF, front O2 sensor, and TPS run off of that fuse, and any of those wires that are grounded somewhere can cause that fuse to blow.