Get rid of oxygen sensors?
ya i got a chip from ed wright a long time ago...he said he could just put in a default or something and have it run in open loop or closed loop....i forget its been awhile...wanted like 50 bucks for it too shoulda gone with pcmforless
Do you know if he would just make it run at a stock a/f ratio or something better for the hotcam? does it matter?
thanks
Do you know if he would just make it run at a stock a/f ratio or something better for the hotcam? does it matter?
thanks
Last edited by FormulaDave; Oct 24, 2003 at 07:10 PM.
You cannot have "Closed Loop" operation without an O2 sensor. You can program the PCM to stay in Open Loop and ignore the O2 sensors, but why? You would loose the fuel trim capabilities of the PCM. There is no reason why you shouldn't be able to get the sensors to funtion properly with headers.
Long term efficiency is not going to be as good without the O2s. They were not put there just for show. I agree with GMTech.
Why is it that when people have trouble with something, the first inclination is to "take it out"?
What happened to troubleshooting and repairing?
Why is it that when people have trouble with something, the first inclination is to "take it out"?
What happened to troubleshooting and repairing?
Originally posted by shoebox
Long term efficiency is not going to be as good without the O2s. They were not put there just for show. I agree with GMTech.
Why is it that when people have trouble with something, the first inclination is to "take it out"?
What happened to troubleshooting and repairing?
Long term efficiency is not going to be as good without the O2s. They were not put there just for show. I agree with GMTech.
Why is it that when people have trouble with something, the first inclination is to "take it out"?
What happened to troubleshooting and repairing?
This is far far far from my first inclination. I've spent months trying to troubleshoot and repair them. They have worked at a few points in time. I once narrowed it down to being a bad ground on the motor. Ive gone through and taken all the computer plugs apart and cleaned the terminals. I have gone back and forth between my stock single wire o2 sensors and the heated ones. Spent upwards of 100 dollars on o2 sensors. Thing is they always seem to still **** up for some reason and Im sick of messing with them and throwing money at them. It's a 93' so I do have speed density if that makes a difference which i think it does. Also, I only have shorty headers so heated sensors. The only time the SES light will come on is after about 5-10 minutes of driving at highway speeds.But hey, I am all ears to any suggestions. Thats why I posted this partly. I guess my best option is just to get another chip with it set to run in "Open Loop." I just pray it makes my car get better gas milage. Im actually kinda worried about that because shouldn't the car already be in Open Loop unless im driving on the highway (where it tries to go into closed loop i think?)?



Go to carb, Please give me a break. O2 sims'2 would work on your car. Sorry, but im still laughing about"switch to carb"
