Do you think it's a bad MAF sensor?

[number80]

Well after the stock motor got put in it cannot idle or drive well. Here's the symptoms.

Has hard time idle, especially when it's not warmed up completely
Misfires or bogs when you give it some gas
Drives very poor and will have to feather in the gas on a rolling start
When I unplug the MAF sensor it idles better and I"m able to rev it conistantly but only up to 2500.
when I plug it back on it seems worse like the above symptoms but just able to rev high.


BTW what is the sensor on the lower portion of the intake box? Does it matter much because I think that sensor is not hooked up either.

Any help would be great. BTW my setup is all OEM.

[jdm213]

your suppose to connct the sensor, and yeah its a bad MAF get a new depending on your engine

[number80]

I just unplugged it for diagnostic reasons. Basically proving that the maf is bad because when it’s plugged, it’s worse. Well I’m just hoping for other peoples input.

[scels240]

im having the same problem but its bad all the time with sensor in an out.. cant go about 2500 rpms..

[number80]

^^^well you maf may be completely not working or reading anything. I'm looking for a maf right now and hope to see if it's the problem. I'll let you know too.

[Sileighty_85]

check for vaccum leaks

[number80]

All vacuums seemed to be good and not leaking. It just idle so much smoother with the maf unplugged has gotten me puzzled. Can't locate a maf either just yet.