04-21-2018, 05:11 AM
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#1
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rggav
Join Date: Feb 2018
Location: Virginia
Posts: 30
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Replaced MAF, Check engine light ON
Replaced the Mass Air Flow sensor and air filter on my 2000 986 Boxster S. Check engine light was out for two days. It is back on?? What next? Code scanner had bad MAF sensor code listed.
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04-21-2018, 06:22 AM
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#2
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,458
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Quote:
Originally Posted by RG2000S
Replaced the Mass Air Flow sensor and air filter on my 2000 986 Boxster S. Check engine light was out for two days. It is back on?? What next? Code scanner had bad MAF sensor code listed.
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What code?
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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04-21-2018, 10:05 AM
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#3
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rggav
Join Date: Feb 2018
Location: Virginia
Posts: 30
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Dont remember code #
Quote:
Originally Posted by JFP in PA
What code?
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It said MAF. I will have to read again to see what was the code # was. I will read again and write down code.
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04-21-2018, 10:19 AM
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#4
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rggav
Join Date: Feb 2018
Location: Virginia
Posts: 30
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Just reread codes. Now it is not saying MAF. Now reads codes P1128 and P1130 which say OXY sensing?
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04-21-2018, 11:35 AM
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#5
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Registered User
Join Date: Aug 2005
Location: Sanford NC
Posts: 2,549
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Those are common codes.
Use the search function on this forum to see what others have discovered after following the diagnostic flow chart included in the repair manuals. Mostly not the MAF itself but something affecting the fuel air mix like a leak.
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04-23-2018, 04:15 PM
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#6
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Registered User
Join Date: May 2011
Location: Miami florida
Posts: 1,591
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be absolutely sure that you replaced the MAF with the proper part number. In the 2000 cars, many of the dme or replaced which required a different MAF. What I would do is make sure that the replacement MAF is exactly the same part number as the MAF that you removed.
__________________
Current car
2000 Boxster 2.7l red/black
Previous cars
1973 Opel Manta
1969(?) Fiat 850 Convertible
1979 Lancia Beta Coupe
1981 Alfa Romeo GTV 6
1985 Alfa Romeo Graduate
1985 Porsche 944
1989 Porsche 944
1981 Triumph TR7
1989 (?) Alfa Romeo Milano
1993 Saab 9000
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04-23-2018, 07:11 PM
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#7
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Registered User
Join Date: Dec 2014
Location: Pasadena
Posts: 261
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Those two codes could mean vacuum leaks since they are reporting both banks. Lean conditions. Highly unlikely that 2 O2 sensors could go out. I would reinvestigate the Maf, maybe clean and be absolute its fastened well.
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04-24-2018, 05:00 AM
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#8
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rggav
Join Date: Feb 2018
Location: Virginia
Posts: 30
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Replaced MAF with Bosch OEM part
Quote:
Originally Posted by san rensho
be absolutely sure that you replaced the MAF with the proper part number. In the 2000 cars, many of the dme or replaced which required a different MAF. What I would do is make sure that the replacement MAF is exactly the same part number as the MAF that you removed.
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I ordered Bosche OEM MAF from Amazon part #OPEL 1882019, PORSCHE 98660612500, PORSCHE 98660612501. I also installed a new BMC air filter.
I checked around and I am pretty sure this is the latest replacement part(latest version)
My first time attempt to get to the engine compartment was difficulty....had a hard time with removing the ball socketed cables. I had ordered a set of tamper proof torx bit sockets. The set had two T8s and the T20 was missing. I had to quit and go around and find a T20. Very frustrating.
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04-24-2018, 06:25 AM
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#9
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rggav
Join Date: Feb 2018
Location: Virginia
Posts: 30
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Quote:
Originally Posted by Lapister
Those two codes could mean vacuum leaks since they are reporting both banks. Lean conditions. Highly unlikely that 2 O2 sensors could go out. I would reinvestigate the Maf, maybe clean and be absolute its fastened well.
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I have watched several videos on replacing the oxygen sensors. The car is 18 years old and the code says oxygen sensors. How long do oxygen sensors last?
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04-24-2018, 08:27 AM
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#10
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Registered User
Join Date: Dec 2014
Location: Pasadena
Posts: 261
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I had one code p1128 which turned out to be just one bank replaced @69K. I did replace both at the time. Still think if you are having both P1128/1130 that it may not be O2 sensor. Check after Maf for unmetered air. Those rubber couplers for resonance tube and Throttle body T.
Is the Maf sensor new? Used ones can be a crapshoot.
Last edited by Lapister; 04-24-2018 at 08:30 AM.
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04-24-2018, 01:55 PM
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#11
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Registered User
Join Date: Dec 2017
Location: Cambria, CA
Posts: 121
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Quote:
Originally Posted by RG2000S
I ordered Bosche OEM MAF from Amazon part #OPEL 1882019, PORSCHE 98660612500, PORSCHE 98660612501. I also installed a new BMC air filter.
I checked around and I am pretty sure this is the latest replacement part(latest version)
My first time attempt to get to the engine compartment was difficulty....had a hard time with removing the ball socketed cables. I had ordered a set of tamper proof torx bit sockets. The set had two T8s and the T20 was missing. I had to quit and go around and find a T20. Very frustrating.
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If the MAF that you replaced is the updated version of the MAF that you pulled out (different part number than the original MAF) then my understanding is that you have to have the dme updated with the Porsche diagnostic tool.
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04-24-2018, 11:20 PM
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#12
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Registered User
Join Date: Feb 2017
Location: CO
Posts: 989
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Quote:
Originally Posted by RG2000S
I ordered Bosche OEM MAF from Amazon part #OPEL 1882019, PORSCHE 98660612500, PORSCHE 98660612501. I also installed a new BMC air filter.
I checked around and I am pretty sure this is the latest replacement part(latest version)
My first time attempt to get to the engine compartment was difficulty....had a hard time with removing the ball socketed cables. I had ordered a set of tamper proof torx bit sockets. The set had two T8s and the T20 was missing. I had to quit and go around and find a T20. Very frustrating.
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Why did you have a tough time with the ball sockets? All they do is hold down the water barrier. Remove only the end at the top. They pop of very easily. You didn’t try to remove the red ones did you!? They are the ones connected to the actuator for the top itself. No need to remove if you did.
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04-25-2018, 04:10 AM
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#13
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rggav
Join Date: Feb 2018
Location: Virginia
Posts: 30
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1st time cable ball removal
Quote:
Originally Posted by Geof3
Why did you have a tough time with the ball sockets? All they do is hold down the water barrier. Remove only the end at the top. They pop of very easily. You didn’t try to remove the red ones did you!? They are the ones connected to the actuator for the top itself. No need to remove if you did.
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The cables are short so you can't raise the water barrier high enough to see them. I had never seen the little pin that holds the ball in the socket. Finally realized that you unclick pin from bottom of ball, rotate and remove pin. Ball was kinda hard to remove from socket after I removed pin. I had to put the pins back in by feel but I got them in.
The next time it will be a lot easier.....newbe problems 1st time.
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04-25-2018, 04:17 AM
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#14
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rggav
Join Date: Feb 2018
Location: Virginia
Posts: 30
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update DME
Quote:
Originally Posted by dlud
If the MAF that you replaced is the updated version of the MAF that you pulled out (different part number than the original MAF) then my understanding is that you have to have the dme updated with the Porsche diagnostic tool.
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The MAF I installed was the latest updated version. Who can update the DME? Dealer or Porsche shop??
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04-25-2018, 04:25 AM
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#15
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rggav
Join Date: Feb 2018
Location: Virginia
Posts: 30
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High milage
Quote:
Originally Posted by Lapister
I had one code p1128 which turned out to be just one bank replaced @69K. I did replace both at the time. Still think if you are having both P1128/1130 that it may not be O2 sensor. Check after Maf for unmetered air. Those rubber couplers for resonance tube and Throttle body T.
Is the Maf sensor new? Used ones can be a crapshoot.
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My Boxster has 163,400 miles on it.....still runs like a beast. Do Oxy Sensors last that long?
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04-25-2018, 01:51 PM
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#16
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Registered User
Join Date: Dec 2009
Location: Orange County, CA
Posts: 1,910
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Quote:
Originally Posted by RG2000S
My Boxster has 163,400 miles on it.....still runs like a beast. Do Oxy Sensors last that long?
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I am not so sure, specially now that you may have jinxed yourself ..LOL
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04-25-2018, 04:28 PM
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#17
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Registered User
Join Date: Dec 2017
Location: Cambria, CA
Posts: 121
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Quote:
Originally Posted by RG2000S
The MAF I installed was the latest updated version. Who can update the DME? Dealer or Porsche shop??
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Either a Porsche dealer or an Indie (or private party) that has the Porsche diagnostic tool.
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04-25-2018, 04:35 PM
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#18
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Registered User
Join Date: Dec 2017
Location: Cambria, CA
Posts: 121
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