pass inspection after code cleared?

[JamesKilcarr]

hi, i have fabspeed hfcs, i got a cel, if i clear the code and take the inspection test right away will my car pass? or do i have to drive it for a certain amount of miles without getting one before i will pass? please help thanks

[6spdg37s]

Originally Posted by JamesKilcarr

hi, i have fabspeed hfcs, i got a cel, if i clear the code and take the inspection test right away will my car pass? or do i have to drive it for a certain amount of miles without getting one before i will pass? please help thanks

In NJ u gotta do a drive cycle and get the sensor from not ready to ready status...

depends how NY inspection works but I think it is the same

[BPMSport]

No - clearing the codes also clears readiness. So if you take it in directly after clearing and before the car has a chance to set readiness, you will automatically fail.

[JamesKilcarr]

okay thanks, so what exactly do i have to do then? sorry im new to this

[JamesKilcarr]

Originally Posted by 6spdg37s

In NJ u gotta do a drive cycle and get the sensor from not ready to ready status...

depends how NY inspection works but I think it is the same

okay, how long is a drive cycle? and how will i know if their ready?

[6spdg37s]

Originally Posted by JamesKilcarr

okay, how long is a drive cycle? and how will i know if their ready?

how long have u had the HFC's installed before you got the code?

[BPMSport]

Many people have asked me:
1) How long will it take for the light to come on?
2) Why do some cars trigger the light sooner than others?
3) Will my driving style affect how long it takes to trigger the light?

Here are the answers of how setting readiness works. The CEL is thrown after readiness FAILS and may require MULTIPLE drive cycles to ensure that all testing conditions are met:

An example of a drive cycle is as follows:
1. Engine cold start, idling, approximately 3 minutes.

Evaluated:

• Secondary Air System
• Evaporative Leak Detection (LDP Equipped Vehicles)

2. Constant driving at 20 to 30 MPH, approximately 4 minutes.

Evaluated:

• Oxygen Sensors - Achieved “Closed Loop” Operation
• Oxygen Sensors - Response Time and Switching Time (Control Frequency)

3. Constant driving at 40 to 60 MPH, approximately 15 minutes (sufficient vehicle coasting phases included).

Evaluated:

• Catalytic Converter Efficiency
• Oxygen Sensors - Response Time and Switching Time (Control Frequency)

4. Engine idling, approximately 5 minutes.

Evaluated:
Tank-Leak Diagnosis (DMTL Equipped Vehicles after KL 15 is switched OFF) US Spec M3's are DMTL Equipped and KL15 means ignition on.

Now the reason of why some cars take MUCH longer than others to throw the error light - Driving Style!

The diagnostic sequence illustrated above will be interrupted if:
• The engine speed exceeds 3000 RPM.
• Large fluctuations in the accelerator pedal position.
• The driving speed exceeds 60 MPH.

The Service Engine Soon / Increased Emissions! warning will be illuminated under the following conditions:
• Upon the completion of the next consecutive driving cycle where the previously faulted system is monitored again and the emissions relevant
fault is again present.

• Immediately if a “Catalyst Damaging” fault occurs (Misfire Detection).

The illumination of the light is performed in accordance with the Federal Test Procedure (FTP) which requires the lamp to be illuminated when:

• A malfunction of a component that can affect the emission performance of the vehicle occurs and causes emissions to exceed 1.5 times the standards required by the (FTP).
• Manufacturer-defined specifications are exceeded.
• An implausible input signal is generated.
• Catalyst deterioration causes HC-emissions to exceed a limit equivalent to 1.5 times the standard (FTP).
• Misfire faults occur.
• A leak is detected in the evaporative system, or “purging” is defective.
• ECM fails to enter closed-loop oxygen sensor control operation within a specified time interval.
• Engine control or automatic transmission control enters a "limp home" operating mode.
• Ignition is on (KL15) position before cranking = Bulb Check Function.

There you have it. Everything you need to know about readiness testing, how it's tested, and why some cars take longer than others to record an error.

[6spdg37s]

mike ! awesome post lol I was not going to sit there and type that all out hahaaha... im assuming u had that saved already ?

[JamesKilcarr]

Originally Posted by 6spdg37s

how long have u had the HFC's installed before you got the code?

3000 miles

[JamesKilcarr]

Originally Posted by Mike Benvo

Many people have asked me:
1) How long will it take for the light to come on?
2) Why do some cars trigger the light sooner than others?
3) Will my driving style affect how long it takes to trigger the light?

Here are the answers of how setting readiness works. The CEL is thrown after readiness FAILS and may require MULTIPLE drive cycles to ensure that all testing conditions are met:

An example of a drive cycle is as follows:
1. Engine cold start, idling, approximately 3 minutes.

Evaluated:

• Secondary Air System
• Evaporative Leak Detection (LDP Equipped Vehicles)

2. Constant driving at 20 to 30 MPH, approximately 4 minutes.

Evaluated:

• Oxygen Sensors - Achieved “Closed Loop” Operation
• Oxygen Sensors - Response Time and Switching Time (Control Frequency)

3. Constant driving at 40 to 60 MPH, approximately 15 minutes (sufficient vehicle coasting phases included).

Evaluated:

• Catalytic Converter Efficiency
• Oxygen Sensors - Response Time and Switching Time (Control Frequency)

4. Engine idling, approximately 5 minutes.

Evaluated:
Tank-Leak Diagnosis (DMTL Equipped Vehicles after KL 15 is switched OFF) US Spec M3's are DMTL Equipped and KL15 means ignition on.

Now the reason of why some cars take MUCH longer than others to throw the error light - Driving Style!

The diagnostic sequence illustrated above will be interrupted if:
• The engine speed exceeds 3000 RPM.
• Large fluctuations in the accelerator pedal position.
• The driving speed exceeds 60 MPH.

The Service Engine Soon / Increased Emissions! warning will be illuminated under the following conditions:
• Upon the completion of the next consecutive driving cycle where the previously faulted system is monitored again and the emissions relevant
fault is again present.

• Immediately if a “Catalyst Damaging” fault occurs (Misfire Detection).

The illumination of the light is performed in accordance with the Federal Test Procedure (FTP) which requires the lamp to be illuminated when:

• A malfunction of a component that can affect the emission performance of the vehicle occurs and causes emissions to exceed 1.5 times the standards required by the (FTP).
• Manufacturer-defined specifications are exceeded.
• An implausible input signal is generated.
• Catalyst deterioration causes HC-emissions to exceed a limit equivalent to 1.5 times the standard (FTP).
• Misfire faults occur.
• A leak is detected in the evaporative system, or “purging” is defective.
• ECM fails to enter closed-loop oxygen sensor control operation within a specified time interval.
• Engine control or automatic transmission control enters a "limp home" operating mode.
• Ignition is on (KL15) position before cranking = Bulb Check Function.

There you have it. Everything you need to know about readiness testing, how it's tested, and why some cars take longer than others to record an error.

okay thank you so much!

[lopeolinda]

I was not going to sit there and type that all out

[6spdg37s]

Originally Posted by JamesKilcarr

3000 miles

im sure that those sensors had gotten ready within those 3k

you need to look into your options, one which is getting a tune and getting the sensors set to ready , or borrow a scanner and try to get them ready yourself doing a drive cycle as soon as their ready get your ass to get inspected before you throw another code..

[BPMSport]

Originally Posted by 6spdg37s

mike ! awesome post lol I was not going to sit there and type that all out hahaaha... im assuming u had that saved already ?

My pleasure.

I found it from one of my previous posts

[aussiem3]

Wealth of information. I don't think other vendors on this forum take the time to make the customers feel comfortable and share the information they request. Mike'a approach and customer focus make the decision making easy. Now I see why there are 100s of satisfied customers Mike. Well done.

[JamesKilcarr]

Originally Posted by 6spdg37s

im sure that those sensors had gotten ready within those 3k

you need to look into your options, one which is getting a tune and getting the sensors set to ready , or borrow a scanner and try to get them ready yourself doing a drive cycle as soon as their ready get your ass to get inspected before you throw another code..

its possible to get a tune that will do that?

[JamesKilcarr]

sorry for all the questions but do the 02 extenders that people talk about work good?

[BPMSport]

Thanks guys, my pleasure helping.

As far as the o2 extenders, the Fabspeed setup will probably squeeze by with the extenders. I know I have a set of them laying around here somewhere from when I had that system on my car prior to the full Akra Evo.

Without the extenders, they will eventually code but may take a little more time since they are 200 cell cats vs 100 cell, or catless (0 cell). OEM cats are 400 cell.

Let me know if you have any other questions and I'll do my best to answer.

[6spdg37s]

Originally Posted by Mike Benvo

Thanks guys, my pleasure helping.

As far as the o2 extenders, the Fabspeed setup will probably squeeze by with the extenders. I know I have a set of them laying around here somewhere from when I had that system on my car prior to the full Akra Evo.

Without the extenders, they will eventually code but may take a little more time since they are 200 cell cats vs 100 cell, or catless (0 cell). OEM cats are 400 cell.

Let me know if you have any other questions and I'll do my best to answer.

+ 1 mike beat me to it ... or mike do you do a tune that will have the sensors set up as ready all the time ?

I know the place that tuned my vette had a way to do that .

[ersin]

Mike,

I haven't seen a definitive answer to this yet; they've all been kind of wishy-washy and never a direct answer. If it has been answered before I apologize but maybe you can answer this for me: can a full Akro Evo pass the readiness tests that emissions testing stations look for? And, if so, what would be needed for this to pass? I've read of other "solutions" but nobody has indicated that it passes readiness. TIA


Cheers,

Ersin

[whats77inaname]

Originally Posted by dsiddons

I don't think other vendors on this forum take the time to make the customers feel comfortable and share the information they request.

I'm going to have to say that is a very broad paintbrush you used to paint all of the vendors here. Granted, there are *some* that aren't forthcoming, but there are a plethora that do take time and go the extra mile. Mike happens to be one of them. Now, let's get back on track with this thread, shall we?

[tom @ eas]

Originally Posted by 6spdg37s

mike ! awesome post lol I was not going to sit there and type that all out hahaaha... im assuming u had that saved already ?

That is an excerpt of the BMW Emissions Overview booklet.



This graphic should help illustrate as well.

[JamesKilcarr]

Originally Posted by Mike Benvo

Thanks guys, my pleasure helping.

As far as the o2 extenders, the Fabspeed setup will probably squeeze by with the extenders. I know I have a set of them laying around here somewhere from when I had that system on my car prior to the full Akra Evo.

Without the extenders, they will eventually code but may take a little more time since they are 200 cell cats vs 100 cell, or catless (0 cell). OEM cats are 400 cell.

Let me know if you have any other questions and I'll do my best to answer.

okay thanks so much