10-12-2009, 06:17 PM
Join Date: Sep 2007
Location: Aldie, VA
Total Cats: 0
Odd stuttering problem
Ok, it's kind of hard for me to explain this problem that I am having, but I will give it my best shot.
Basically what happens is this:
Start the car up, for a few min. till it is warmed up if I give to much throttle, it will stutter a bit, but then accelerate like normal.
From here on out it could run perfectly fine for hours, or the CEL will come on, (for anywhere from 2 sec. to 30 sec. give or take) once it goes away, it almost feels like its running out of gas, it stutters real bad, and has a bit of a miss.
After this, it could go away after one or two blips of the throttle. or could stay for a few miles down the road.
I have gone back to basically a stock Greddy kit (no IC) to minimize failure points.
I got the codes off the car this afternoon, and I got this:
AFM(8), Water Thermistor(9), Ignition Pulse(1), o2 Sensor(17), and TPS(12)
This problem has been going on for a while, i have already replaced the AFM, and the o2 sensor, along with the ECU (got a little wet causing some corrosion). All used.
Sorry for the long post, this problem is super annoying, and can figure it out... I'm guessing its a major electrical problem. Anyone have any idea where to start?