RandyWS6
August 19th, 2008, 02:14 AM
Im running in semi OL and my STFT's don't start reading till 180*F , what temp are you guys stft start reading. What it is, my car is running rich at start up till i get to 180* and then my stfts take over and controls my fuel trims to 14.6 afr. I am running COS-5 and done the auto VE and they are around .99 to 101 ,that the best i can get it here in KY ,some days its cool and others are hot.
And after the car is wormed up , it run grate ,but if i shut it off for any amount of time ,and then restart it and the AFR is at 14.6 for about five to ten sec.Then it will go extremely lean (19) on my WB and will not take fuel. Like the car is dumping fuel and the O2's are pulling fuel to try to lean it back out , then after about ten sec. or so it will go back to normal and runs perfect all day long, until i shut it back off. Now this only does this after the engine is up to temp. What is causing this. I also had this problem before i went to COS5 and with a massair. Do you think if i had my STFT to come on sooner this might help. If so how would i do this.
Thanks, Randy
And after the car is wormed up , it run grate ,but if i shut it off for any amount of time ,and then restart it and the AFR is at 14.6 for about five to ten sec.Then it will go extremely lean (19) on my WB and will not take fuel. Like the car is dumping fuel and the O2's are pulling fuel to try to lean it back out , then after about ten sec. or so it will go back to normal and runs perfect all day long, until i shut it back off. Now this only does this after the engine is up to temp. What is causing this. I also had this problem before i went to COS5 and with a massair. Do you think if i had my STFT to come on sooner this might help. If so how would i do this.
Thanks, Randy