2013 Yukon Denali Hybrid AFM Delete won't pass emissions

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HybridYukon13

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Hi,
I had a lifter collapse on my 2013 Yukon Hybrid and we did a AFM Delete on the motor.
It is now due for emissions and it keeps coming as "not ready" for the test.
Report is showing catalyst convertor, evap, oxygen sensor & oxygen sensor heater are not ready for testing.

I got a splitter for the AFM so it could stay plugged in while the emissions place also plugs their stuff in. Didn't work.

I have not tried to do a drive test in consecutive order but will do this tomorrow.
cold start, AC & rear defrost on, accelerate to 55+ for 3 minutes, decelerate to 20mph, accelerate to 55+ for 5 minutes, decelerate to 20mph

Does anyone have any ideas of what I can do to get my car past emissions?!

Thanks so much for any help!!!!
 

Fless

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Hit the link below and scroll down to the drive cycle details in post #3. There are some very specific conditions (fuel level, ECT vs IAT absolute and delta, etc.) that need to be met for the cold start and if those aren't met, nothing's going to happen.


Some scanners can also perform some monitor tests.
 

j91z28d1

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Hi,
I had a lifter collapse on my 2013 Yukon Hybrid and we did a AFM Delete on the motor.
It is now due for emissions and it keeps coming as "not ready" for the test.
Report is showing catalyst convertor, evap, oxygen sensor & oxygen sensor heater are not ready for testing.

I got a splitter for the AFM so it could stay plugged in while the emissions place also plugs their stuff in. Didn't work.

I have not tried to do a drive test in consecutive order but will do this tomorrow.
cold start, AC & rear defrost on, accelerate to 55+ for 3 minutes, decelerate to 20mph, accelerate to 55+ for 5 minutes, decelerate to 20mph

Does anyone have any ideas of what I can do to get my car past emissions?!

Thanks so much for any help!!!!


wait.. you did a put non afm lifters in and not turn it off in the tune but still use the plug in to the obd2 port dongle thingy?

I've not used those, but thats now how I understood those to work. I thought once you removed the vlom solenoids you needed to turn it off in the tune and also those dongle work by blocking requesting something that also keeps the monitors from setting. so even thou you have a open obd2 port for testing. you're going to have to run it without the dongle to get anything ready.

what cam and lifters did you go with? how does it run?
 

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