maf voltage too high!!

The Code 66 MAF voltages I posted are approximate values for a stock system. They may not be correct for a system with 24lb injectors and a matching MAF.

The important thing is that the MAF does not hit 4.9 volts before you hit the engine RPM redline. If it does, then your max rpm fuel mixture will be lean.

For best results on your problems, make only one post per problem. I can't recall what lead you to question the MAF idle voltages, so I can't offer any other suggestions to fix your orginal problem.

It is a good idea to use the sig under the user control panel (User CP) option. It allows you to post your car year & mods, which help greatly when troubleshooting things. Be a good stangnetter and update you sig for future reference & don't keep us guessing.

Does the car surge? If not, don't worry about it. If it does, pull out some idle fuel.

I think it reads around .7v at idle. You just gotta play with it until its right. Cold idle a/f will be leaner. It will richen up as it warms up. If -10 was too lean, try -6 and see.