Topic: 1994 Landcruiser new MAF installation. NOW BARELY IDLES!!!

[<MIKE>]

I recently broke my MAF sensor on my 1994 landcruiser.  I bought an new unit and installed it today. Now when i turn my engine over it barely idles at around 300 rpms and then dies if i try to rev it at all. Am i missing anything or is this a bad unit.  Vehicle ran amazing before i accidently broke the old unit. This is my DD so i need to get this thing running. i've heard unplugging the battery to reset the ECU but how long would that take? Any experience with this problem? thanks

[Toyotadon]

You can reset the ECU by pulling the EFI fuse for around 30 seconds.  Did you buy a new Toyota AFM, or is it an aftermarket/reman part?

HTH

[<MIKE> [OP]]

It's an aftermarket by python injection

[<MIKE> [OP]]

I've tried resetting with Neg batt terminal unplugged and now I can maintain a good steady rpm around 800- 4000 but if I let off the throttle it dies down to around 150-200 then dies

[<MIKE> [OP]]

This EFI fuse?

[<MIKE> [OP]]

Or this one

[<MIKE> [OP]]

!

[<MIKE> [OP]]

I pulled this fuse for up to 10 min while "hanging around"     and the truck still idles rough around 150-200 RPMs and then will die after about 2 mins or so. it will occasionally try  and kick it self up to around 800 rpms then drops down again. Am i pulling the wrong fuse or is this unit not working?

[<MIKE> [OP]]

Bump before bed.  Anyone ?

[Toyotadon]

Yes, that is the right fuse, but it sounds like you have something else going on.  If you are anywhere near Visalia or Hanford, I could loan you one to try out.

[<MIKE> [OP]]

i think my MAF i bought is a POS and doesnt work.. This beast ran fine untill i pulled the maf to clean it and dropped it on the ground and it cracked. I bought a new one and now it barely idles at 200. Gonna return this one and see if i can get a better one.

[THK Matt]

Run Toyota OEM!