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Sudden loss of power and the CEL comes on

w_pienaar
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w_pienaar Member

w_pienaar

Posted
Posted

My pride and joy (1997 Boxster 2.5) played up on me on my way to work yesterday morning. I was driving on the motorway when there was a sudden loss of power. I was able to nurse it to the nearest off-ramp. I was able to crawl at a snails pace with the engine RPM just above idle. Any attempt to accelerate ended up with the engine cutting out. On the way to a nearby garage close to the off-ramp, the CEL started flashing for a short wile and eventually ended up as a full amber. At this point normal engine power was restored and I steadily returned home.

I downloaded the fault codes last night and now need some advice on what the problem may could be. For what I was able to establish searching the forum points towards a faulty MAF. Even though several O2 fault codes appear in the list, am I correct to assume that they only reports the emission issues and that the actual item causing the problem is “upstream”. This leads me to believe that it may be the MAF to blame.

P.S. A problem I’ve also been struggling from time to time is when accelerating the engine briefly “hesitates” going through the 4500 RPM range. This I also considered to be the MAF giving notice.

The fault codes downloaded are listed below.

Eagerly awaiting your responds.

Cheers

Motronic 5.2.2

Current Fault Codes

________________________________________

P1123

Factory Fault Code 27 - Oxygen sensing adaptation range 1 (cylinders 1-3)

Lean limit

________________________________________

P1125

Factory Fault Code 35 - Oxygen sensing adaptation range 1 (cylinders 4-6)

Lean limit

________________________________________

P1531

Factory Fault Code 174 - Camshaft adjustment, bank 1

________________________________________

P1128

Factory Fault Code 26 - Oxygen sensing adaptation range 2 (cylinders 1-3)

Enrichment limit

________________________________________

P1130

Factory Fault Code 34 - Oxygen sensing adaptation range 2 (cylinders 4-6)

Enrichment limit

________________________________________

P1319

Factory Fault Code 62 - Misfire, emission related

________________________________________

P1313

Factory Fault Code 50 - Misfire, cylinder 1, emission related

________________________________________

P1318

Factory Fault Code 55 - Misfire, cylinder 6, emission related

________________________________________

P1314

Factory Fault Code 51 - Misfire, cylinder 2, emission related

________________________________________

P0130

Factory Fault Code 10 - Oxygen sensor ahead of catalytic converter (cylinders 1-3)

Short circuit of wires or limited voltage increase

________________________________________

P0150

Factory Fault Code 18 - Oxygen sensor ahead of catalytic converter (cylinders 4-6)

Short circuit of wires or limited voltage increase

________________________________________

P0300

Factory Fault Code 75 - Misfire damaging to catalytic converter

________________________________________

P0301

Factory Fault Code 63 - Misfire, cylinder 1, damaging to catalytic converter

________________________________________

P0302

Factory Fault Code 64 - Misfire, cylinder 2, damaging to catalytic converter

________________________________________

P0303

Factory Fault Code 65 - Misfire, cylinder 3, damaging to catalytic converter

________________________________________

P1315

Factory Fault Code 52 - Misfire, cylinder 3, emission related

________________________________________

Copyright 2005-2006. Durametric Software Inc. All rights reserved.

Porsche, Cayenne, Boxster, Cayman, Turbo are registered trademarks of

Dr. Ing. h. c. F. Porsche AG.

Durametric Software is not affiliated with Porsche in any way.

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  • 6 months later...
jhae Member

jhae

Posted
Posted
My pride and joy (1997 Boxster 2.5) played up on me on my way to work yesterday morning. I was driving on the motorway when there was a sudden loss of power. I was able to nurse it to the nearest off-ramp. I was able to crawl at a snails pace with the engine RPM just above idle. Any attempt to accelerate ended up with the engine cutting out. On the way to a nearby garage close to the off-ramp, the CEL started flashing for a short wile and eventually ended up as a full amber. At this point normal engine power was restored and I steadily returned home.

I downloaded the fault codes last night and now need some advice on what the problem may could be. For what I was able to establish searching the forum points towards a faulty MAF. Even though several O2 fault codes appear in the list, am I correct to assume that they only reports the emission issues and that the actual item causing the problem is “upstream”. This leads me to believe that it may be the MAF to blame.

P.S. A problem I’ve also been struggling from time to time is when accelerating the engine briefly “hesitates” going through the 4500 RPM range. This I also considered to be the MAF giving notice.

The fault codes downloaded are listed below.

Eagerly awaiting your responds.

Cheers

Motronic 5.2.2

Current Fault Codes

________________________________________

P1123

Factory Fault Code 27 - Oxygen sensing adaptation range 1 (cylinders 1-3)

Lean limit

________________________________________

P1125

Factory Fault Code 35 - Oxygen sensing adaptation range 1 (cylinders 4-6)

Lean limit

________________________________________

P1531

Factory Fault Code 174 - Camshaft adjustment, bank 1

________________________________________

P1128

Factory Fault Code 26 - Oxygen sensing adaptation range 2 (cylinders 1-3)

Enrichment limit

________________________________________

P1130

Factory Fault Code 34 - Oxygen sensing adaptation range 2 (cylinders 4-6)

Enrichment limit

________________________________________

P1319

Factory Fault Code 62 - Misfire, emission related

________________________________________

P1313

Factory Fault Code 50 - Misfire, cylinder 1, emission related

________________________________________

P1318

Factory Fault Code 55 - Misfire, cylinder 6, emission related

________________________________________

P1314

Factory Fault Code 51 - Misfire, cylinder 2, emission related

________________________________________

P0130

Factory Fault Code 10 - Oxygen sensor ahead of catalytic converter (cylinders 1-3)

Short circuit of wires or limited voltage increase

________________________________________

P0150

Factory Fault Code 18 - Oxygen sensor ahead of catalytic converter (cylinders 4-6)

Short circuit of wires or limited voltage increase

________________________________________

P0300

Factory Fault Code 75 - Misfire damaging to catalytic converter

________________________________________

P0301

Factory Fault Code 63 - Misfire, cylinder 1, damaging to catalytic converter

________________________________________

P0302

Factory Fault Code 64 - Misfire, cylinder 2, damaging to catalytic converter

________________________________________

P0303

Factory Fault Code 65 - Misfire, cylinder 3, damaging to catalytic converter

________________________________________

P1315

Factory Fault Code 52 - Misfire, cylinder 3, emission related

________________________________________

Copyright 2005-2006. Durametric Software Inc. All rights reserved.

Porsche, Cayenne, Boxster, Cayman, Turbo are registered trademarks of

Dr. Ing. h. c. F. Porsche AG.

Durametric Software is not affiliated with Porsche in any way.

hey my car has the same problem with just about all your codes

did you ever find a solution

my car was running like shi*

then i cleared the codes and wont run at all starts runs super rough then cuts off

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