So i had my car Hooked up to my laptop using tunerpro RT.

I was trying to diagnose a bad idle situation, Lots of fluctuation in air/fuel and what sounds like timing.

It picks and chooses very randomly how it wants to run.

One minute it will run well, idle will even out, then it just DROPS. Starts to stink of rich exhaust. It even stalls.

--------The the coolant temp that the ECM was getting was 244 steadily, even when the car was cold. So i know thats bad.

Could that be causing all of this?!

I have replaced the ignition coil, cap, wires, plugs, TPS, IAC, ignition control module, pickup.

Ohm checked all injectors, theyre fine.
i have sufficient fuel pressure at the rail.
base timing has been set to 6* btc.
Minimum Air setting was set
Tps is at .54 v
Sprayed out MAF


Havent checked 02, knock sensor, MAF burn-off relay or power relay, or the ESC module.

CAN THE BAD COOLANT TEMP SENSOR CAUSE ALL OF THIS?! thanks!

 

from the sounds of it yes, if it dosent fix the problem then I would say its time for some brain storming, the computer isnt giving any codes?