My 2000 max auto with 70k miles on it has slowly been revving lower and lower, to where I now only can get it to about 3500 before sputtering, although it will go higher, just worthlessly. I was told I "might" have a almost complete blockage in my cat by a friend. I am throwing NO codes. Any ideas? Exhaust is all original.
Also is there a sensor on the main cat? I know there are one in each pre cat.
It makes great power up to 3500 btw.

 

replace your MAF sensor

/thread.

 

^^^^^......MAF (Mass Air Flow) Sensor....replace it!!

 

maf!!!!!!!!!!

 

stock limiter is at 3500....

 

hehehe.

 

MAF sensor.

Raises that stock limiter.

 

MAF sensor

 

Got a new MAF and holy sheep sh*t it pulls like new AND shifts perfectly to boot. Thanks for the input.

 

Really Cheap New MAF for future reference

 

MAF, join the club. Hit up DaveB and get a 2001 model.

 

Mine is more than twice that

Cheesy pic--->

 

and then the SES light for pushing your rpm's that far hahaha

 

SES = No primary O2's connected..