Just over 200 miles ago had a few mods installed (giac, exhaust etc) now after a short wot in 2nd and 3rd about 20 seconds later I get the dreaded cel. Note I don't have the evoms V flow system.
Car still drives fine so I figure my first stop should be Autozone to pull the codes as I suspect the dealer wouldn't be too interested. Any other suggestions ?

 

Return to where the GIAC was installed. Also could be really anything until you get the codes read. Did you upgrade the boost hoses to silicone?

good luck let us know. (hope your MAF is ok)

 

AutoZone fo sho. Give them your DL and they will give you their code reader.

 

Hi Tom, Tommy

Just been to AutoZone and used thier reader only one fault code P1109 Air Flow meter.

So I cleared the fault code and drove home.

As far as I can tell everything seems normal, none the less I'm going to replace the MAF.

Soooo,
where's the best place to get one and are there any specials tools required ?
It looks like a simple DIY.

Is it safe to continue driving it having cleared the code ?

I thought once a MAF went bad that was it - maybe not ?

I don't think it's fair to ask the dealership to cover this under warranty as it's most likely related to my mods.

Now had I had the V flow intake installed I would have instantly thought that was the problem - just goes to show MAF's will pop with or without the V flow mod :-)

Thinking about getting one of these aswell - saves bugging autozone should I have anymore problems http://www.pocketlogger.com/index.php?pid=obdii

 

save $400.00 get some elec cleaner at ace hardware. rermove your maf and spray it clean... be sure it's dry reinstall it and all should be fine.....have 01 had the same prob.it works steve

 

He can try the electrical cleaner, but typically if you throw a code that points directly to the MAF and/or your ABS/PSM lights come on, the MAF is on its way out. Cleaning it typically cures your fuel trim settings and whatnot. Also, if you are paying $400 for a MAF, you should really give Imagine Auto a call. They should be able to do better than that. If they can't, I can point you in other directions as well.

 

Hi Steve, thanks for the tip - worth a try. Any particular brand of elec cleaner you recommend ?
From past experience some can leave a residue.

Tim

PS just testing picture up load.

 

Well at least you found the problem!!!

 

I figured it was either an O2 or MAF sensor and quite frankly I'd rather change a MAF than an O2 as the former is likely much easier to access !

Edit - hmmm the reader at Autozone reported P1109 air flow meter but googling P1109 seems to indicate an 2 sensor. Surely the code means the same for any vehicle manufacturer ?

Tim

 

yep got mine at ace sez crc on the can it's a red can cleaned mins six months ago and all is fine

 

ruiner never bought a maf cleaned mine and has been well for 6 months or so ..... the service mgr at my local porsche dealer gave me the cleaning tip... he simply said i'm going to save you $400.00 maybe that's installed..

 

Buying parts from your local Porsche dealer = "no no"

They will rape you on the price, typically. There are a few select places that give just over cost.

As for installation, it only takes 2 minutes, max, so if they charge 1 hr of labor, it is a rip-off. Cleaning your MAF generally helps, but I have found that if your CEL specifically relates back to MAF specific codes, it might be too late. There are a few stages of MAF failure/problems. One involves a contaminated MAF. That can be fixed by cleaning. The others typically result from a failing MAF (usually a circuit issue). Cleaning really doesn't help that aspect.

 

Here is what the cleaner looks like:

One version of the can - CRC QD Electrical Cleaner


Another new "look" to the can from the same company I do believe (notice the "no residue")

 

Not always. Most are close, but not always the same.

Here is a bit of info on CEL codes: As you can see, the second number (1 in your case) determines a specific manufacturer code or SAE number. Because the second number is 1, the code will be Porsche specific.

Anatomy of the DTC

A DTC is made up of 5 digits. The figure below demonstrates the composition of a DTC. With this information it is easier to trouble shoot a DTC without knowing the description of the code.

 

Nice...that is helpful. Thanks Ruiner!