My car is still being goofy. I replaced the MAF and now it is'nt throwing any codes but it still runs exactly the same. When its cold it surges and sputters and kicks back and forth like a rodeo bull. Then when it warms up it stops but does'nt seem to have any power at all. It barely chirps second!! It feels like its suffocating or something...Any suggestions?

Here is what has been replaced so far...

Cat-back exhaust
MAF sensor
plugs (ngk vpower)
wires
cap
airfilter
oil flush and change
fuel filter
ps/fan belt
lucas fuel system cleaner
and am running 93 octane

I have a suspicion that the ignition timing is off but I have no gun to check it with...

 

how many times have i said or suggested

ECT

 

+1, ignition wouldnt make it an issue between cold and hot like you described.

 

I have a timing gun.Im in riverview.Also i would try checking the injectors. and did you get an exhaust on there yet?

 

tried the injectors they are fine...yeah I have a full cat-back now...

 

Im assuming your talking about the coolant temp sensor...if so I need to get a multi -meter so I can check that although I will say this when I unplug it with the engine running it drops the idle so I know its reading something...I have also replaced it and it made no change in performance so I took it back....

 

Here is a dyno chart before and after replacement of a bad coolant sensor



This is EXACTLY how the power band feels!! Feels like its getting choked out until right at the end...then its time to shift!

 

EXACTLY WHY I SAID REPLACE IT


dude the car is a million years old.

replace EVERY major sensor that's known to fault.