My First CEL

[NickCats]

Well, it was bound to happen sooner or later...

Got my first CEL on my way home from work today

Stopped at Murray's and they were able to read and reset for me :

P1123 Oxygen Sensing Adaptation Area 1 (Cylinders 1 - 3) - Lean Threshold

P1125 Oxygen Sensing Adaptation Area 1 (Cylinders 4 - 6) - Lean Threshold

( thanks for the codes, JAAY ! )

Just got done searching the forum, and it looks like blinkwatt had the same problem awhile back and ended up replacing the MAF.

I have a 1999 Boxster with 40k miles.

So, my plan is to see if it comes back, and if so, after I clean the MAF, should I replace if it throws the code again ? How do I know it is the MAF and not the o2 sensors ?

Also, another stupid question, on my way home I was stuck in traffic behind a car that was billowing smoke from the tailpipe. Is it possible this could have triggered the code since the radiators were pulling in the exhaust from the front ?

Also, where is the cheapest place to order the MAF and any instructions on replacing / cleaning ?

Thanks in advance for your help...

Nick

[NickCats]

Just found this over on Mike Focke's website :

http://mike.focke.googlepages.com/checkenginelightcausedbymassairflowsensor

djomlas, looks like I might need your help if I have to clean the MAF

Nick

[blinkwatt]

If I remember correctly 986online.com price matched and beat all other quotes(Sunset,********************************AZ & Suncoast) I sent to them. It was $225 shipped for a new non-egas MAF.

[FrayAdjacent]

Keep us updated on what happens.

I'm going to try to get some MAF cleaner and clean mine this Friday when I'm off. She started idling roughly on me on Sunday when she warmed up, and I had the AC on.

[NickCats]

Found it for $196 :

http://www.************************************************************/search/product.aspx?sid=2zaway55xj0ruo23hqfckevs&makeid=800019@Porsche&modelid=1357196@BOXSTER%20&year=1999&cid=22@Fuel%20%26%20Air%20System&gid=5068@Air%20Mass%20Sensor

[blinkwatt]

Originally Posted by NickCats

Found it for $196 :

http://www.************************************************************/search/product.aspx?sid=2zaway55xj0ruo23hqfckevs&makeid=800019@Porsche&modelid=1357196@BOXSTER%20&year=1999&cid=22@Fuel%20%26%20Air%20System&gid=5068@Air%20Mass%20Sensor

Whoa! Good find! Looks like they have gone down in price a little.