Solved - Check Engine + ABS + PSM Errors Gone after MAF - Rennlist - Porsche Discussion Forums

Go Back  Rennlist - Porsche Discussion Forums > Water Cooled Technical Discussion Areas > 996 Forum
Reload this Page > Solved - Check Engine + ABS + PSM Errors Gone after MAF
Notices
996 Forum

Solved - Check Engine + ABS + PSM Errors Gone after MAF

Reply

Old 03-20-2017, 04:00 PM
  #1
Ian964
User
Thread Starter
 
Ian964's Avatar
 
Join Date: Nov 2002
Location: New Hampshire
Posts: 748
Default Solved - Check Engine + ABS + PSM Errors Gone after MAF

2003 C4S. My ABS/PSM lights went on about a week before I put the car away for the winter. Shortly thereafter the Check Engine ("CEL") light also went on. OBD was telling me it was a MAF issue, but I didn't think this was related to the ABS/PSM. The shop down the road just had an OBD scanner and not anything Porsche specific.

I bought a cheap MAF on eBay that came with the security torx. Install took me about 25 minutes. The ABS/PSM lights never came back on but the CEL remained. I drove it for about 10 minutes and the CEL finally went away. So nice to have a clean dashboard and I was able to actually fix it myself!

Anyway, I'm just posting this because when I was searching the forum for answers, the ABS/PSM issue did not seem to go hand-in-hand with the MAF failure.

I went with the cheap MAF just because I wasn't sure if it was the issue. For 50 bucks it was worth finding out. Should I upgrade to a Bosch or OEM MAF or just wait for this one to fail?
Ian964 is offline  
Reply With Quote
Old 03-20-2017, 04:27 PM
  #2
Schnell Gelb
Super User
 
Join Date: Apr 2014
Location: Los Angeles
Posts: 2,202
Default

There are 2 MAF part numbers. New & old.
To get the correct one, start with the Porsche part number for your year. Do not rely only on an Interchange part number.If it has the correct part number .it is O.K. A quick visual is the droopy 'nose' on the later MAF. You'll see the difference when you start lookingat the alternatives.
Schnell Gelb is offline  
Reply With Quote
Old 03-20-2017, 04:32 PM
  #3
AWDGuy
User
 
Join Date: Mar 2011
Posts: 1,486
Default

had the same thing 2 weeks ago when I took the 4.0 out of storage. CEL, PSM and ABS light came on.

"great....NOW what?"

plug in scanner.. code for MAF. light bulb goes off in my head as I was doing some work on it over the winter and I probably forgot to plug the MAF in. low and behold....open the trunk lid and sure enough I forgot to plug the MAF back in.

plugged it back in...started the car...clear of any lights. sweet!
AWDGuy is offline  
Reply With Quote
Old 03-23-2017, 05:26 PM
  #4
mharrison
User
 
mharrison's Avatar
 
Join Date: Jan 2005
Location: Mississippi
Posts: 950
Default

Glad that you got it cleared up. I experienced that about a year ago. Being the cheap SOB that I am, I cleaned the MAF sensor with this and all was good with the world and has remained so.
mharrison is offline  
Reply With Quote
 

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
tx targa
996 Forum
8
08-25-2017 07:21 PM
ScoobyDoo555
996 Forum
23
05-26-2017 04:04 PM
NCdog
996 Turbo Forum
14
03-29-2017 07:48 PM
fbgh2o
996 Turbo Forum
15
06-16-2016 11:07 AM
fbgh2o
996 Forum
3
05-27-2016 10:26 AM

Thread Tools
Search this Thread
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -3. The time now is 05:48 PM.


Copyright ę 1998 - 2017 Rennlist.com
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: