Hi, My car is 93' Escort Rs Cosworth. I have L8 (Red Sticker) ECU, Non Cat, 803's injector, 3 bar map sensor, Wolf Racing Chip (Turbo pressure 22 Psi), and I have lambda sensor.

1.I use with lambda or not? Which is correct, because Red Sticker means No Lambda..?

2.When I set the CO (3.0 arround) after 2 day, I check it again and it goes to 0.2 (CO)..so I think maybe, lambda sensor cause this..?

Thank you very much..

 

Normal Escort ecu is a P8, so are you sure about L8, because that's a Sierra 4x4 ecu.
Check against pictures here: http://www.bigturbo.co.uk/main1.htm
Red label or green label both have the same hardware and can have an Oxygen sensor.
It all depends on the program in the eprom whether or not it's actually used.

 

I'm sure, it's a red sticker L8, I know it's for sierra but escort can use it..
Am I right?
I don't know wolf chip eprom use it or not..my problem is when I set the CO after few days CO go down.I think maybe lambda sensor cause it.
If I unplugged the lambda sensor after I set the CO, Do I have any problem?

Thanks you.

 

Yes, the Escort can use the L8 ecu.
Try measuring the voltage from the Oxygen sensor to the ecu.
Is it switching between a low (0,1 - 0,2V) and a high signal (0,7 - 0,8V)? Then the chip is using the Oxygen sensor. Or ask Wolf.

 

I unplugged the Lambda sensor, now the CO is stabil, and the car goes better..
Another question I use Escort cosworth amal valve ( 2 pipe type), but my ECU is not P8 so which one is true? sierra type( 3 pipe) or escort because my ECU L8.

 

It's a matter of how the hoses are connected to the amal valve.
I don't think there's any gain in changing to the sierra type amal valve.

 

The connection is like this;
wastegate and turbo housing pipe go to one side of amal valve ( with T pipe connection)
one side of the amal valve to air filter box.