Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

LinkBack Thread Tools Display Modes
Old 12-22-2009, 01:22 PM   #1
Registered User
Join Date: Oct 2008
Location: San Antonio, Texas!
Posts: 733
Low oil throwing the 1128 and CEL?

So I've had this nagging CEL off and on since replacing the AOS (which fixed my fog machine problem and a different code)

I DO have an existing exhaust leak which will get fixed after christmas, but I noticed today that the CEL gets triggered at the EXACT same spot on my way to work. A stop light on a slight incline and boom! CEL

now I started wondering.. this makes me think it isn't random as I thought before (more aggressive driving would trigger the CEL quicker is what I was thinking before).. So I'm wondering, if it's an incline and my oil was "low" because of it, would that cause the CEL and the 1128 code?

I'm due up for an oil change too.. last time I think my mechanic put the manual-specified amount in, but read lower on the dash guage than when I bought it. Should I tell him to "overfill" it just a tad or have him drive it around the block a few times and then "top it off"?

stateofidleness is offline   Reply With Quote
Old 12-22-2009, 04:33 PM   #2
Registered User
Join Date: Apr 2009
Location: Bothell, WA
Posts: 279
You should be checking your oil level each time you fill the gas tank via the electronic display. Ideally you'd let the car sit for longer than the few minutes it takes to fill, otherwise it will always look low, but gas stations are good because they are typically on level ground.

These cars do burn a little oil, so you should buy a quart and expect to top it off on your own every couple thousand miles to be safe. (My '01 burned about half a quart over 3,000 miles)

I don't know about the oil level + CEL thing, esp since 1128 is listed as "Oxygen Sensing Adaptation Area 2 (Cylinders 1 - 3) - Rich Threshold"



'01 Boxster S, 51k miles
'05 Mazda 6 Grand Touring Wagon
yimmy149 is offline   Reply With Quote

Thread Tools
Display Modes

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -8. The time now is 07:04 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page