I guess as a work around I could unplug the rear 02 and disable the dtcs, that will ensure it has no influence at all on anything

The rear 02 sensor is used to monitor the cat efficiency though so obviously and engine running at say 12:1 is not going to be producing the correct input to the cat therefor the output will be wrong and the rear 02 sensor will allow the ecu to adjust for that. Pretty standard practice on all gm, fo...

That does not right to me, every other vehicle I have tuned uses rear 02 sensors for long term fuel trim calculations. Pre cat sensors are used for short term, this is why you can have a positive short term trim and a negative long term at the same time. If these mps motors do not use that logic how...

Do any of the base files for the mazda 6/atenza mps have the long term fuel trim disabled?

Have a vehicle that customer has removes the cat from

My question is regarding DTCs for EGR, if i want to disable the egr dtcs and blank the valve off am I able to do this if I purchase the lite version of the software or do I need to purchase the full version? On a 2007 (gen1) CX7 is you block-off the EGR there's a pretty good chance the ECU will not...

My question is regarding DTCs for EGR, if i want to disable the egr dtcs and blank the valve off am I able to do this if I purchase the lite version of the software or do I need to purchase the full version? On a 2007 (gen1) CX7 is you block-off the EGR there's a pretty good chance the ECU will not...

Hi everyone,

I am looking at purchasing versatune for my 2007 cx7 with the 2.3t engine.

My question is regarding DTCs for EGR, if i want to disable the egr dtcs and blank the valve off am I able to do this if I purchase the lite version of the software or do I need to purchase the full version?