Cel First Time Out Of Sorage

[MNBoxster]

Franco,

I have no way of knowing. But these DMEs often glitch after being woken up. Disconnecting the battery reset it. If it doesn't reappear, you're OK. Until then, don't worry about it...

Happy Motoring!... Jim'99

[Franco]

Hi Jim, CEL reappeared today so i went and bought an OBD2 reader (INNOVA 3030) and got these codes P1123 & P1125, but the P1123 is not shown in my Boxster service manual as you already mentioned in previous posts.

The only status icon still flashing was the C= CATALYST MONITOR, do you think this can be the culprit for reading a P1123 code.

The car runs great, starts OK, idles OK, the only thing i noticed was the gas consumption a little high but than again i could be wrong.

1997, 65,000 KM, OEM air filter, 6 month old gas

I read all the threads and the thing that intrigues me the most is that my car has non of the symptoms like most of the other cars.
Jim I know I'm a pain in the BUUUUUUUUUUUTTTTTTTTTTTTTTTT, butta whata du u tink.

Thanks and good night

[MNBoxster]

Originally Posted by Franco

Hi Jim, CEL reappeared today so i went and bought an OBD2 reader (INNOVA 3030) and got these codes P1123 & P1125, but the P1123 is not shown in my Boxster service manual as you already mentioned in previous posts.

The only status icon still flashing was the C= CATALYST MONITOR, do you think this can be the culprit for reading a P1123 code.

The car runs great, starts OK, idles OK, the only thing i noticed was the gas consumption a little high but than again i could be wrong.

1997, 65,000 KM, OEM air filter, 6 month old gas

I read all the threads and the thing that intrigues me the most is that my car has non of the symptoms like most of the other cars.
Jim I know I'm a pain in the BUUUUUUUUUUUTTTTTTTTTTTTTTTT, butta whata du u tink.

Thanks and good night

Hi,

Well, the trouble with these codes is that they are often less than definitive - they only point you in the right direction - sometimes.

I suspect that best case, it's bad gas. From there I would first suspect the MAF, then possibly O² sensors. On a '97, even with relatively low miles, some of these things could simply be coming due.

First, I would add some Jectron - http://www.********************************************/acatalog/Lubro_Moly_Jectron_Fuel_Injection_Cleaner.html and keep adding fresh gas - as much as possible.

If no-joy, I'd then clean the MAF - http://www.crcindustries.com/auto/content/prod_detail.aspx?S=Y&PN=05110 . You might also try disconnecting the MAF electrical connector to see if this extinguishes the MIL, that would be a tell-tale.

If still no-joy, you may need to start buying parts. But, report back first, all may not be lost. Hang in there...

Happy Motoring!... Jim'99

[Franco]

HI Guys, Filled up with new gas today and I erased cel light, drove around and 110 KMS later cel shows up again. Tried unplugging MAF and cel didn't clear so went and get some cleaner, cleaned it and nothing changed, plugged up OBD2 and P1123 code only. I noticed no difference in the idling when unplugging the maf .


I did notice a strange sound which i could only hear with the windows closed and at a stop, and didn't get louder when picking up speed but was faded out by the engine noise, sounded like a bearing starting to go bad or a vacuum hose trying to suck up water, don't know if this pertains to the maf but just thought i should mention it.

Any thoughts guys?????????????????????????????????

Thanks

[MNBoxster]

Hi,

Interesting.... Porsche has a TSB out 9/00 1715 1 noting the Oil Filler Hose between the Crankcase and the Service Unit (Oil Filler in Trunk).

It says: "Oil Filler Hose can crack causing the following conditions:

• Check Engine Light
  
  Oil Leak on the Crankcase in the area of the Oil Filler Hose
  
  Rough running (rough idling, increased idle speed)
  
  As a result of the incoming secondary air, the following Fault Codes may be stored in the DME Fault Memory: P1123 to P1130.
  
  A new style hose was installed in Production as of August 18, 2000. In case of complaints, the new style Hose should be installed. PN# 996.107.254.03"

Sounds similar to what you're experiencing, especially with the sound you describe. Check the Crankcase for tell-tale signs, and if confirmed, send me a PM w/ your email Addy and I'll shoot you a copy of the TSB w/ replacement procedure.

There is also a TSB discussing P1123 and noting the proper voltage range of the MAF. It says:

• MAF signal voltage:
  
  - If the value is between 0.92 V and 1.08 V, no replacement is necessary.
  - If the value is 1.15 V or above, replace MAF.

Run a test using a Multimeter and see what value it gives you. Hope this helps...

Happy Motoring!... Jim'99

[blinkwatt]

I had P1123 & 1125 once,it was a bad MAF. $220(I think) shipped for a new non E-gas MAF from 986online.com .

[Franco]

Originally Posted by MNBoxster

Hi,

Interesting.... Porsche has a TSB out 9/00 1715 1 noting the Oil Filler Hose between the Crankcase and the Service Unit (Oil Filler in Trunk).

It says: "Oil Filler Hose can crack causing the following conditions:

• Check Engine Light
  
  Oil Leak on the Crankcase in the area of the Oil Filler Hose
  
  Rough running (rough idling, increased idle speed)
  
  As a result of the incoming secondary air, the following Fault Codes may be stored in the DME Fault Memory: P1123 to P1130.
  
  A new style hose was installed in Production as of August 18, 2000. In case of complaints, the new style Hose should be installed. PN# 996.107.254.03"

Sounds similar to what you're experiencing, especially with the sound you describe. Check the Crankcase for tell-tale signs, and if confirmed, send me a PM w/ your email Addy and I'll shoot you a copy of the TSB w/ replacement procedure.

There is also a TSB discussing P1123 and noting the proper voltage range of the MAF. It says:

• MAF signal voltage:
  
  - If the value is between 0.92 V and 1.08 V, no replacement is necessary.
  - If the value is 1.15 V or above, replace MAF.

Run a test using a Multimeter and see what value it gives you. Hope this helps...

Happy Motoring!... Jim'99

Hi Jim, I'm trying to send you a PM but your inbox is full.

Thanks Franco

[Franco]

Hi

Update, I tightened the flange connecting the oil fill tube to the crankcase but the noise didn't disappear. there are no leaks anywhere else so that's covered.

I verified the MAF and i got a reading of 1.28 volts so i guess I'll be shopping for a new sensor this week. One thing at a time i guess.
Jim thanks for all the information you have PM'D me, i really appreciate all the time you took to help me on this subject.
Guys like you are indispensable on forums like this, MUCH RESPECT