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By Danny Hammoud
Unfortunately, I am back with another problem or problems........
A couple of days ago a check engine light popped up on my 997.2s and because it is my daily driver, I was not able to immediately diagnose the issue. I went ahead and ordered a "Carsoft POR II" scanner off amazon as i thought it would help my understanding in what the problem was. (Getting to the point.....) Today while I was driving home from class, the car was running very rough. I decided to pull over and give the scanner a go...
P0660 INTAKE PIPE SWITCHOVER FINAL STAGE
P0153 02 SENSOR AHEAD OF CAT BANK 2 DYNAMISM
P2099 A/F RATIO CORRECT. BEH. CAT. BANK 2 ABOVE RICH CONTROL UNIT
P2198 02 SENSOR AHEAD OF CAT. BANK 2 TOO RICH SIGNAL
P0174 BANK 2 TOO LEAN
P0171 SYSTEM TOO LEAN
P2196 02 SENSOR SIGNAL BIASED/ STUCK BANK 1 SENSOR 1
Being the person I am, I went ahead and cleared the codes dreaming my problems would magically go away. 😃
About 10 minutes into my commute the codes again popped up but this time, there was something a bit different.......
THE NEW CODES INCLUDED;
P0174 SYSTEM TOO LEAN BANK 2
P0171 SYSTEM TOO LEAN BANK 1
P0306 MISFIRE CYLINDER 6
P0305 MISFIRE CYLINDER 5
P0304 MISFIRE CYLINDER 4
P0300 MISFIRE - TOTAL ERROR
P0660 INTAKE PIPE SWITCHOVER FINAL STAGE
About 2 months ago I installed a new O2 sensor bank 1 sensor. While at it, I had a new AOS installed as well ( OEM parts). There are some theories I have in mind but as for now, I am truly stumped on this issue. Does anyone have any experience with this madness?! Thanks for reading! 😟
This morning I started my car again and a puff of white smoke shot out of the tail pipes. The smoke did clear up really quick.
MORE NEW CODES;
P2A04 O2 SENSOR CIRCUT RANGE/ PERFORMANCE BANK 2 SENSOR 2
P2099 POST CATALYST FUEL TRIM SYSTEM TOO RICH BANK 2
P0153 O2 SENSOR CIRCUIT SLOW RESPONSE BANK 2 SENSOR 1
P2198 O2 SENSOR SIGNAL BIASED/ STUCK RICH BANK 2 SENSOR 1
P0171 SYSTEM TOO LEAN BANK 1
By hugo kohl
1999, 996, 117k miles
Due to leaking I recently changed my coolant reservoir tank, which involved disconnecting and re connecting 2 fuel lines.. Upon restarting the car I had a rough idle and CEL. I purchased a $100b code reader, read a bunch of stuff online and decided to clean the MAF sensor, change the air filter, spark plugs, plug tubes and coils.
upon today's startup I get an erratic/rough/low rpm idle, flashing CEL and the following codes:
P0102 mass air flow circuit low
P1319 misfire emission related
P1318 misfire cylinder 6 emission related
P1315 misfire cylinder 3 emission related
P1313 misfire cylinder 1 emission related
Somehow I went from a leaky tank to some bad stuff based on a do-it-myself moment.
I wonder if the coil packs might not be perfectly seated?
I'm thinking a new mass air flow sensor and all four O2 sensors need replacing??
Sometimes when programming the DME or Alarm control unit with the PST2 or PIWIS, you will get an error of "Test Step Aborted" followed by an error number, such as 3, 21, 25, 71 etc.
I have the PST2 manuals, as well as the KTS manuals and the 986 and 996 Dealer manuals, but one thing I have not been able to find in any of them is a list of error codes that follow the "test step is aborted message"
Sometimes, I have had the errors when I have put in an incorrect "old immobiiser code", or "old learning code", which kind of make sense.. But I often get the error when programming a control unit (yes I do have 14v onto the control unit and pin 60 powered up on the DME when it is a 5.2.2 DME)
Has anyone ever found a list of the error codes and what they mean, or even worked out what they mean?
When programming a DME 5.2.2 for example, I can often get to about 90 percent on the progress screen before it bombs out with one of these codes.
The unit will still start the car etc if it bombs out, so I don't think it is a bricked DME, but I am just curious about the meaning of the error codes
Anyone have any clues? or is my curiosity sending me towards a massive mission of discovery in an unwalked path? lol
Rough idle + Code P0301after tensioner pad / camshaft work and what is correct " Actual angle for camshaft " spec?By Los996
This is a continuing repair to what started as a camshaft deviation out of spec leading to the replacement of the chain tensioner pads / brake pads / chain ramps on my 2000 911 - 996 5-Chain engine. Seen here:
That odyssey has since been resolved but I now have a new issue.
Removed camshafts, readjusted the camshaft chain timing "marker" positions, replaced tensioner pads, reassembled everything per factory specs.
On first start up got very rough idle and bad misfires. At first I thought it may have been my timing was off but went back and visually inspected all and all looked correct (visually). Upon further inspection realized parts guy had given me Bosch 7403 plugs instead of Bosch 7413 (2000 Porsche 911).
Switched out and installed the correct spark plugs and no more continuous misfires / backfires. Did the initial reset (wait 1 min with ignition on / turn ignition off / wait 10 sec) On the first start up it did misfired / back fired once but I assumed that was left over fuel.
Car now runs but very rough and threw 2 codes:
- P0300 : Porsche Fault code 62 - Misfire damaging cat. converter
- P0301 : Porsche fault code Cylinder 1 misfire damaging to cat. converter
Also, took these readings:
Actual angle for camshaft bank 1: -12.53
Actual angle for camshaft bank 2: 3.05
On positive note the main reason for doing all this work was the original problem / issue of tensioner / brake pad wear which was giving me a -10 / -2.92 reading is now:
Camshaft position 1 deviation: 0.00
Camshaft position 2 deviation: 0.00
So the question is now are the Actual angle for camshaft readings within specs and could incorrect timing be attributed to these new issues?
And... Do I have to give the DME time to "relearn"?
Curious to know who's got the "world record" haha.
I just crossed 130k on my 04 CTT. on my way to work one day and it starts stumbling. Instantly i'm thinking coil packs, but it clears up as i'm coming home.
Pull the codes, see a misfire cyl 7. pull the pack, cracked. pulled all of them, 7 of the 8 were also cracked. Order 8 new ones.
What's interesting is i had -02 revision packs, which i believe would have been original factory packs, or at least **** close. 130k is pretty good compared to some of the others i've heard about.
What's also interesting is how quickly they fail. i had just done plugs at 120k, and inspected all the packs.