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Wideband reads voltage but wont display AFR/Lambda
Posted: Sun May 31, 2015 2:22 pm
by 93supercoupe
Hey guys
Ive got a MR2 with a Caldina swap, using the bosch LSU 4.2
I can see voltages on the O2 sensor tab that seem valid, and they change with throttle movement, and with key on engine off, the sensor gets warm.
But the display is stuck at 14.7 or lambda 1.
It has to be something silly im over looking, this is my first time using this system.
Any tips?
Re: Wideband reads voltage but wont display AFR/Lambda
Posted: Mon Jun 01, 2015 2:00 pm
by Jadzwin
Please send here a log file. Start the car and wait on idle about 1 minute. Then save the log.
Re: Wideband reads voltage but wont display AFR/Lambda
Posted: Sat Jun 06, 2015 2:14 pm
by 93supercoupe
Ive added a log and the tune file. It has some idle and a rev to show the voltage move. In any case, the AFR/Lambda gauge stays at Stoich. Not any movement.
This is a brand new engine so im trying to stay away from prolonged idle times until its broken in, but it has ran for many minutes at a time with no change.
Sensor gets warm with key on engine off to indicate the heater circuit working properly.
Re: Wideband reads voltage but wont display AFR/Lambda
Posted: Sat Jun 06, 2015 2:15 pm
by 93supercoupe
I also updated to the latest software last night.
Is it a different process to update firmware?
Re: Wideband reads voltage but wont display AFR/Lambda
Posted: Sat Jun 06, 2015 9:58 pm
by Jadzwin
Please check the connection of the WBO heater.
It looks like the heater doesn't work
Re: Wideband reads voltage but wont display AFR/Lambda
Posted: Thu Aug 06, 2015 8:05 pm
by eljest89
Did you get it to work? I have the same problem.