36 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHreadiness monitors
Reported or suspected cause
coil packs and not an temporary injector issue
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that report identifying a cause
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Reported cause · Original poster
Still not 100% sure it was the coil packs and not an temporary injector issue.
Leading evidence: 'coil packs and not an temporary injector issue' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'coil packs and not an temporary injector issue' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check of egr and canister purge' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
I reset the codes with OBD reader and did this cycle on the way to the test place.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
I used the middle one on my car and it worked relatively well.
Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.
Check of egr and canister purge
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
OBDII makes a final check of EGR and canister purge.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
My drive routine for the readiness reset is to set the cruise control on the highway for 55mph for 30 minutes and then same thing on the return drive back.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
36 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 1 adjusted by outcome qualification.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
I did the above sequence last Monday prior to smog and it worked like a charm.
I had a CEL a week or so ago and got P300, P301 and P303 codes. They are misfire codes.
Cleared the codes and replaced the coil packs.
Still not 100% sure it was the coil packs and not an temporary injector issue.
No other codes present or cleared
In any case, I have 2 monitors that have not reset;
Catalyst and Evap system
I have driven the car a bit and even did an AX a few days ago.
How do I get the the monitors to reset and show ready?
There is a specific sequence of things you need to do in order for all of the monitors to reset quickly. I followed this to a T because I kept getting the SAI valves codes and needed to pass the OBD test in AZ. I reset the codes with OBD reader and did this cycle on the way to the test place. Car passed.
Drive cycle sequence I got off the web for my car is:
Start engine, idle cold for approx. 2 min, 10 secs.
Accelerate to 20-30 MPH, Maintain steady speed for approx 3 min, 15 secs.
Accelerate to 40-60 MPH, Maintain steady speed for approx 15 mins.
Decelerate and come to a stop. Idle in gear* for approx 5 mins.
Try this:
Cold engine idle for 2 minutes, then 10 miles local (with some traffic. Congestion ok) then ~10 miles highway as much steady speed as possible. Then let car rest till cold. Repeat the above sequence a few more times and those readiness should set if there are no issues.
Usually I can get those flags (evap + cats) set within at most 3 days of driving with mixed local and highway traffic.
While a bit on the messy side the best method I've found involves a chicken, chanting unpronounceable words, and a knife...
I think it took about 3 months to get my Cayenne to cooperate the last time it got reset.
I did the above sequence last Monday prior to smog and it worked like a charm. shop reset everything changing my expansion tank. Key is not to exceed 3K RPMs the entire time or 60 MPH for the last part of the sequence. I did the first part on access roads close to my home then the second part on the freeway at 430 am when traffic was minimal. got passed by a bunch of semi's who i am sure where wondering who is this loser in the slow lane going 55 in a 911.
That is the guideline for what the CPU is looking for to run the tests... If you can stay on speed it does it faster... If not it will also work cumulative... I had to reinstall my Cats for my ILLINOIS testing... I followed the guidelines more or less and never ran over 3k or over 60mph... Most of the monitors reset to clean... Next day same idea but mixed city and HW driving... Not pushing it and turning on the AC for a while then the Defroster... All my monitors finally reset to Green. That was on last Saturday night... Then I jumped on it on Sunday and she pulled the dash light and a bunch of codes! I should have left her in the garage till I could take her to the test center...
Moral of the story (Monster run on sentence). Get an ODB Bluetooth scanner... Clear out all your codes, lights, stored data and then follow the reset program as best as you can... SOON as everything resets to Green TEST the car as soon as possible!
Then pull into the garage and pull the cats back OFF!
My drive routine for the readiness reset is to set the cruise control on the highway for 55mph for 30 minutes and then same thing on the return drive back. All but the evap system will be ready IF the parts are in good condition. If a part is marginal, the ECU needs more time to calculate if that part is good enough to make that system ready or to throw the check engine light. The longer it takes for a system (except evap, that can take a week or more) to become ready, the worse shape the parts in that system are.
I do it at night between one city and another. It's unnerving because transports will be whizzing by but it has to stay below 62mph (100km/h) to test the catalytic efficiency.
The evap will take time because the ECU will pressurise the fuel tank and measure the pressure drop over a period of time but for that the car need to be stopped but running. So it takes a veryong time, sometimes a week or more. Therefore, best thing to do it drive it with a tank that's between 1/3 and 2/3 full. Too much or too little fuel in the tank and the tests can not be completed by the ECU.
Ok... I was searching for "readiness monitor reset drive cycles" I found
three
that cover most domestic (EPA) teasing measures:
Start engine, idle cold for approx. 2 min, 10 secs.
Accelerate to 20-30 MPH, Maintain steady speed for approx 3 min, 15 secs.
Accelerate to 40-60 MPH, Maintain steady speed for approx 15 mins.
Decelerate and come to a stop. Idle in gear* for approx 5 mins.
1..As soon as the engine starts, idle the engine in drive for two and a half minutes with the A/C and rear defrost on. OBDII checks oxygen sensor heater circuits, air pump andEVAP purge.
2. Turn the A/C and rear defrost off, and accelerate to 55 mph at half throttle. OBDII checks for ignition misfire, fuel trim and canister purge.
3. Hold at a steady state speed of 55 mph for three minutes.
OBDII monitors EGR, air pump, O2 sensors and canister purge.
4. Decelerate (coast down) to 20 mph without braking or depressing the clutch. OBDII checks EGR and purge functions.
5. Accelerate back to 55 to 60 mph at half throttle. OBDII checks misfire, fuel trim and purge again.
6. Hold at a steady speed of 55 to 60 mph for five minutes.
OBDII monitors catalytic converter efficiency, misfire, EGR, fuel trim, oxygen sensors and purge functions.
7. Decelerate (coast down) to a stop without braking. OBDII makes a final check of EGR and canister purge.
just hold the following RPM ranges from 2-5 minutes:
Idle
1500
2000
2500
3000
Idle
the checks usually happen before the 5 minutes is up, but without a scan tool hooked up you won't know when it happens.
I used the middle one on my car and it worked relatively well.
Notice how this one explains what the system is trying to check... Might be helpful for specific items...
Been there, done that.
Big house, crappy weather and big ego's
So. Cal is a much better place.
Great weather, nice homes, nice people
They don't call San Diego "America's Finest City" for nothing
Are you sniffing glue??
These various interconnections mean that history, civilization and writing all begin at the same time. That time is about 3100 BC. Mesopotamia and Egypt: 3100 BC.
In about 3200 BC the two earliest civilizations develop in the region where southwest Asia joins northeast Africa.
certainly not in that god forsaken place know as Texas
Please, please secede from the USA. That way we can be done with wackos like Ted Cruz and you
anyone, how does the blocker work???
Texas is one of the few places I've been where there is a historical monument and surrounding buildings to commemorate a spectacularly lost battle.
The day escrow closed on our family farm in Texas - ensuring I would never somehow wind up living there - was a great day indeed. I would drive a Prius before I'd move to Texas.
Those domestic drive cycles don't work on the 996 evap system. I've tried. Just drive it and eventually it will be ready. No need to over complicate things. Just dive the damn thing.
Up here one not ready system is OK to get a pass. That's not the same as one failed system that trips the check engine light. The Evap is always the longest to become ready so I think the government let that was be not ready or else the used car dealers would need to drive their sold cars for days.
This is a source reference. Confirm exact model applicability in the original material.
