Would a maf sensor cause?

would a maf sensor cause your exhaust to glow red hot or maybe an o2 sensor

 

My first guess would be a clogged cat. But not sure about the others. Doubt it tho. I would start with a back pressure test.. Have you been experiencing sluggishness?

 

It does not have any cats there deleted with after market exhaust system

 

What kind of header? Maybe it's cheap with thin walls.

 

Jba

 

A MAF could potentially cause this. If it were to tell the ecu theres alot less air than there actually is entering the engine causing a lean condition. the o2 should pick this up however and throw a code. noticed in your other thread you replaced fuel pump but did you change the filter?

 

Yeah I did its throwing a code now for the o2 sensor on bank one

 

Interesting the MIL must be on all the time .

i am guessing your only running the up stream O2 sensor

If for some strange reason the Mass Air Flow Sensor is sending a false signal or the ECM is seeing one that tells it the Air Flow volume is the same it sees at 6000 rpm at idle your sill physically limited by the size of the injectors

The engine would be running rather poor no doubt lots of black smoke

 

There both on and plugged in I'm completely stumped going to pull the cover off and check the timing also but no smoke just runs shity when you can get it to fire up and when you put it to the floor it Boggs out and won't do anything and if you very slowly give it has it will rev to about 3.5k Rpms and cuts out and the exhaust pipe got red hot

 

I've seen my header glow dull red after a highway drive at night, not on a tacoma it was a 20R, no cats.

 

Figured out what my problem is the crankshaft timing gear is messed up where the key way goes in to hold it in place is wallered out so it letting the timing get off by quit a bit

 

At least you got it figured out

 

I did I also got a complete running 3.4 with 198k for parts motor for 200$

 

Did you just get this truck??

Did the timing belt and reused the old Crank Bolt??

Torqued it to Feels tight enough

I have been Guilty of doing the above over the years

 

I got it awhile ago it's only got 96k original miles the guy befor me did timing belt about 15k ago and must not have got everything tight enough but I got a spare motor now so if anything else happens to g wrong to have everything I could need spare