Error: 25 26
 

Hey guys, my NA Supra has been running, from what i think (havent owned one before) slow. Can any of these errors result in running slow? Yes, I am not a mechanic and no little about cars but I am learning!!

Injector Circuit
Injector
Fuel Line Pressure
Air Flow Meter
Air Intake System
O2 Sensor Circuit
O2 Sensor
Ignition System
Water Temp. Sensor
ECU

Completely stock right now. Probally going to get new headers, new exhaust and CAI so if it IS the Air Intake System the CAI will replace that right?

If it is the air intake system, your CAI may fix it. I would troubleshoot those areas listed, in that order.

25 or 26
 

i had the same problem i think all i know is it was a knock sensor in mine have u recently replaced your starter

Nah, Havent replaced the starter yet. It's weird. I live in Rockford, IL and it's been extremely cold out lately and the car starts perfectly. But for some reason, just the other day, when i started it the engine started chuggin then just died. I let it chug for a sec to see what it would do and the RPMs rythmically jumped from 500 to 900 RPMs and would just slowly die. Car drove perfectly though and a day later the Check Engine light came on. Car has 160,000 miles on it so I'm pretty sure the O2 sensors are gone. Either way, I'm replacing those for sure. It's at the local mechanic right now, so we'll see what that douchebag has to say.