Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical chat

Reply
 
LinkBack Thread Tools Display Modes
Old 02-23-2015, 03:21 PM   #1
Registered User
 
Join Date: Feb 2015
Location: Arkansas
Posts: 1
P1128 and p1130 codes

Hi, everyone new to the forum. I bought my wife a 2001 Boxster S. The issue I'm having is the car is giving me these codes. It runs great, I've cleaned the MAF. Still get the code. When the weather gets a bit better I'll get out there and do more checking. I guess what throws me off on these codes is that all the post I've seen with them they have bad running cars. This one runs great except with the check engine light. Any thoughts would be helpful. Thanks.
Pster is offline   Reply With Quote
Old 02-23-2015, 07:24 PM   #2
Registered User
 
Jager's Avatar
 
Join Date: Jul 2010
Location: California
Posts: 1,809
Garage
Check your Air Oil Separator, it might be bad.
__________________
Jäger

300K Mile Club
Jager is offline   Reply With Quote
Old 02-23-2015, 09:03 PM   #3
Registered User
 
Join Date: Oct 2008
Location: Waco, Texas
Posts: 376
Had the same codes a few years ago...car ran rough when first started

and engine was cold (overnight). I eventually took it to a indie euro mechanic that deduced that it could be the AOS (had recently been replaced), Air leak, MAF, or that the engine was defective. The last response about the defective engine is what let me know they had no clue what they were doing and did not have the necessary equipment to do diagnostics on the car. I bought a new MAF a few weeks later and the codes never came back and the car ran smooth again. The car will run without the MAF hooked up so it does give some trouble shooting insight as to whether the MAF is good or bad.
papasmurf is offline   Reply With Quote
Old 02-24-2015, 02:12 PM   #4
Track rat
 
Topless's Avatar
 
Join Date: Nov 2006
Location: Cucamonga CA
Posts: 3,643
Garage
9/10 times it is a failed MAF or intake air leak. Start there.
__________________
2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor
Topless is offline   Reply With Quote
Old 03-02-2015, 06:08 PM   #5
Registered User
 
Join Date: Aug 2010
Location: Florida
Posts: 156
I have had those codes intermittently for quite some time. Can't really notice performance issues. I can't find a pattern but it was after an AOS failure w oil in throttle body. Cleaned MAF and throttle body. Haven't noticed performance issues. Got tired of booting up the Durametric so I got one of the Bluetooth ELM units and just read and reset it w android phone. I suspect vacuum leak bug have been unable to track it down
opus69 is offline   Reply With Quote
Old 03-04-2015, 06:00 AM   #6
Registered User
 
Join Date: Dec 2012
Location: Jefferson City, MO
Posts: 88
Quote:
Originally Posted by Topless View Post
9/10 times it is a failed MAF or intake air leak. Start there.
Agreed. I had the same issue with the check engine light coming on. Same codes, but the car ran just fine. Would reset the codes and would be ok for about a month and then come back on. Instead of just cleaning the MAF I bought a new one off of Amazon. Got the Bosch MAF. Spent an hour installing it and that fixed the problem.
__________________
2003 Boxster S
1991 BMW 318is
'93 Ducati 900SS
'76 BMW R75/6
'73 Honda Scrambler
Kurt V is offline   Reply With Quote
Old 03-04-2015, 06:49 AM   #7
Registered User
 
kk2002s's Avatar
 
Join Date: Sep 2012
Location: S. New Jersey
Posts: 1,173
Garage
Same codes after Throttle body clean. For me it was improper re-seating of AOS to Throttle body hose.
It has an odd seating system on each end so make sure they seated correctly
__________________
2002 S - old school third pedal
Seal Grey
kk2002s is offline   Reply With Quote
Old 03-04-2015, 04:50 PM   #8
Registered User
 
Jager's Avatar
 
Join Date: Jul 2010
Location: California
Posts: 1,809
Garage
Quote:
Originally Posted by opus69 View Post
I have had those codes intermittently for quite some time. Can't really notice performance issues. I can't find a pattern but it was after an AOS failure w oil in throttle body. Cleaned MAF and throttle body. Haven't noticed performance issues. Got tired of booting up the Durametric so I got one of the Bluetooth ELM units and just read and reset it w android phone. I suspect vacuum leak bug have been unable to track it down
Using your Durametric, what does the voltages look like on the O2 sensors ahead of your catalytic converters with the motor running?
__________________
Jäger

300K Mile Club
Jager is offline   Reply With Quote
Old 03-07-2015, 01:48 PM   #9
Registered User
 
Join Date: Aug 2010
Location: Florida
Posts: 156
Jaeger sorry did not reply sooner but was not on line. Have not checked voltage but will try to check this weekend. Would be happy if it was as simple as MAF replacement but I suspect vacuum leak.
opus69 is offline   Reply With Quote
Reply


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 11:20 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