Lc1 Keeps Killnig Sensors
All these are critical, with any wideband
Grounded to the block (we use the back of the head).
Ensuring there are no exhaust leaks near the sensors
Ensuring the sensors are at the correct angle (Not in the bottom half of the pipe)
Ensuring the LC-1 Powers up everytime the car is running
Do those things, along with setting up LM programmer correctly, and it should work fine
To the OP, have you tried a free-air cal on the LC-1 before you replace the sensor, and do you do it prior to installing a new sensor?
I run the two Lc-1's and there not temperamental. You just need to set them up correctly and they work perfect. Are they the best? I don't know, I just know after working out my ground problems they work great. I wasn't looking for an easy setup, just one that worked well. I run a left and right bank. They run within .1 of each other. No reason for two I just wanted to play. Only one is hooked into my tuner.
I Tried To Recal A Fouled Sensor Today And Its Reading But The Numbers Are Way Off.. I Think My Problem Lies In Placement Of The Sensor
The Best V8 Stories One Small Block at Time
Doc I Think What Your Missing About Our Conversation Is If I Went Out And Bought A New Sensor Right Now It Will Work Fine For About 2 Weeks And Then Slowly Start Fouling
i dont think doc has diagnosed my problem correctly because my lc-1 outputs does read different voltages and can achieve 5 volts.. after my free air cal my lc-1 was wouncing arround in the 4.XX volt range but ovbiously this is meaningless
before the free air cal it just read a constant 50.00 (which i set up for the default for bad sensor)...
also i was wondering is the 02 sensor suppose to get really hot? i read somewhere it was suppose to get very hot yet the whole time ive had my unit it gets slightly hot but you can still handle the sensor after it warms up (so im guessing that's not the "extreamly hot" that the warning in the instruction booklet talked about)
i dont think doc has diagnosed my problem correctly because my lc-1 outputs does read different voltages and can achieve 5 volts.. after my free air cal my lc-1 was wouncing arround in the 4.XX volt range but ovbiously this is meaningless
before the free air cal it just read a constant 50.00 (which i set up for the default for bad sensor)...
also i was wondering is the 02 sensor suppose to get really hot? i read somewhere it was suppose to get very hot yet the whole time ive had my unit it gets slightly hot but you can still handle the sensor after it warms up (so im guessing that's not the "extreamly hot" that the warning in the instruction booklet talked about)
All these are critical, with any wideband
Grounded to the block (we use the back of the head).
Ensuring there are no exhaust leaks near the sensors
Ensuring the sensors are at the correct angle (Not in the bottom half of the pipe)
Ensuring the LC-1 Powers up everytime the car is running
Do those things, along with setting up LM programmer correctly, and it should work fine
To the OP, have you tried a free-air cal on the LC-1 before you replace the sensor, and do you do it prior to installing a new sensor?
Do what Doc said, and with your DMM measure the voltage between the red and blue wires, you should be seeing better than 12.4V, and it should pretty much be the same as alternator output voltage.
Measure voltage between grounding point (blue wire) and battery negative, you should be seeing less than 0.1V... if not then fix this.
Can the controller be fixed Doc?

Bill






