losing powa

[NC325iC]

alright lately ive been losing alot of power in the light/mid throttle area in the 2-3k range
at first when it happened the AFR would spike up really high (lean) i even saw it hit 20 a couple times but more recently it has been dropping low like to the 12s

what im thinking is my AFM board is scored and it may be sticking some too, any other opinions, im also planning to check out my tps again

[jlevie]

A bad AFM would be a likely cause of a midrange power loss. Swap in a different one and see if things improve.

[HST]

Could be a bad O2 sensor

[NC325iC]

~brand new wide band o2 sensor, its not bad
thats where im getting my afr readings

[NC325iC]

afm looked good tps was filled with oil etc and wasnt adjusted right, im changing out my tstat and water pump so no word on how its running yet, im gonna check on my connections for the o2 sensor, anyone know of a 12volt source thats on with ignition and on while starting?

[euroshark]

TPS will ruin your day if it's on the fritz!

[RobertK]

afm looked good tps was filled with oil etc and wasnt adjusted right, im changing out my tstat and water pump so no word on how its running yet, im gonna check on my connections for the o2 sensor, anyone know of a 12volt source thats on with ignition and on while starting?

The green and white heater wire coming off the O2 sensor relay becomes hot when the ignition is turned on. That's how I wired up the relay for my brother's elec. fan.

[NC325iC]

coolio thanks robert

[Mystikal]

I'm still shocked you're using an AFM with a built 3.0 M20.

-Jay

[NC325iC]

hopefully i wont be after this summer

[87-325ic]

ok, i read the first few posts, until i realized you paid (how much for the Mchenry work) for a 3.0 m20 stroker, and you still run it through an afm.

come one, at least go maf and piggyback.

Please..

[Mr Deagle]

ok, i read the first few posts, until i realized you paid (how much for the Mchenry work) for a 3.0 m20 stroker, and you still run it through an afm.

come one, at least go maf and piggyback.

Please..

more like no maf and standalone

[Mystikal]

more like no maf and standalone

Dude it's an M20 calm down.

Jay

[NC325iC]

seriously its a daily driver street m20
and im not made of money