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Discussion summary
YOUR RESEARCH98 Boxster - Multiple Codes P1130,P1531,P0446,1124,P1126 - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Leading reported evidence
Clean mass air flow sensor
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
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98 Boxster - Multiple Codes P1130,P1531,P0446,1124,P1126 - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Read full discussion summary
Leading evidence: 'Clean mass air flow sensor' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check evap value' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
98 Boxster - Multiple Codes P1130,P1531,P0446,1124,P1126 - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace bank 1 & bank 2 o2 sensor
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed · Original poster
* Changed bank 1 & bank 2 O2 sensor after the Catalytic convertor.
98 Boxster - Multiple Codes P1130,P1531,P0446,1124,P1126 - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Check evap value
Suggestion or failed attempt
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0
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0
Unsuccessful attempts
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Suggestion · Original poster
Also, do you recommend anything for check the EVAP value?
98 Boxster - Multiple Codes P1130,P1531,P0446,1124,P1126 - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Disconnect ends)
Suggestion or failed attempt
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Suggestion
You can blow the hose out (after disconnecting both ends) with compressed air, and the valve can be bench tested to make sure it works properly.
98 Boxster - Multiple Codes P1130,P1531,P0446,1124,P1126 - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
9 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
986Forum: 1 discussions
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Generation: 20261026T120458Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi everyone,
I need your expert advice and guidance in figuring out the main issue with my Porsche Boxster.
Modes - 986 Boxster
Year - 1998
Milages - 38,000
Current projects - Competed
* Mass Air flow sensor cleaned
* Throttle body cleaned
* Changed bank 1 & bank 2 O2 sensor after the Catalytic convertor.
I have the following codes on the car. I'm not sure what this main issue is. I need your advice to where to start.
Codes - P0446,P1124,P1126,P1130, & P1531
Thanks!
P 0446 EVAP cannister purge valve below limit, purge air line blocked.
P 1124 & 1126 Fuel air mixture too lean (both banks), possible intake air leak
P 1130 Overly lean condition, intake leak
P 1531 cam timing active, but no positive position (it isn't working) bank 1
Thank you for replying with the feedback.
I ordered a smoke leak detector which should arrive tomorrow. I hope it will resolve for follow 3 codes once i determine where the air leak is at.
P 1124 & 1126 Fuel air mixture too lean (both banks), possible intake air leak
P 1130 Overly lean condition, intake leak
I have gotten code P1530 as well, which is short in the wire possibly. Now it's starting with P1531. Do you think it would be short in the wire since the mileage on the car is 38K for the solenoid to go back?
Also, do you recommend anything for check the EVAP value?
When it comes to wiring issues, the 38K miles is meaningless, but the fact that the car is 26 years old is. The wire used in these cars was "environmentally friendly" but has been found to be the favorite chow of things like rodents. It also has a propensity to crack, particularly around hot areas.
As for the VarioCam actuators, you can disconnect the one on bank #1 and test it with a 9V battery; you should hear it click when it moves (engine off). If it doesn't, it could be the actuator itself. You can also test the entire harness and actuators by testing them with a Porsche specific diagnostic tool like the Durametric system.
It is either the valve itself, or the hose leading to it is blocked. You can blow the hose out (after disconnecting both ends) with compressed air, and the valve can be bench tested to make sure it works properly.
The wiring on the car is in pretty good shape. However, I will definitely perform the 9V battery test on the solenoid. Additionally, there is an issue with the rear wing as well. it used to open at high speed but not with the switch. I wonder if the issues could be with in cluster as well?
I have the Foxwell NT501 scanner. What reading should I look for?
I tried the 9V battery test yesterday. I heard it click just once and when I looked for a closed loop in connection with multimeter, I had a reading .04 Oms
Yesterday, I did the smoke test, and there were no leaks. I started it from the intake filter, and then separately did from the AOS hose in tot he intake Manifold, directly into the AOS.
While doing that, i saw the power steering reservoir was empty and the drain line was rippled. I installed a new longer line.
I cleaned the MAF sensor again. If it comes up again, then I think it could be the MAF sensor.
P0446 - code came back on again. I'm going to open the canister and see if the value is stuck. I tried the scanner and EVAP does open and close.
P1531 - came back on.
This is a source reference. Confirm exact model applicability in the original material.
