iwas thinking why 9m did not give this to me when i asked for it.as there diagnostic machine will be more advanced.Īs raw data.and i could see the occasional misfire on cylinder 1.though it was just a couple of times and valued at 1.ĬEL did ot come on for the duration of the 15min drive. though i think i did not get it at first and then after a few tries it started.Īlso managed to save the graph data to excel. Selected the cylinder misfire options 1 - 6.Ĭar was driving okay apart from the usual hesitation. I cleared the codes again.started the car and nothing has come back.Īlso noted the real time values = can monitor everything though little beyond me. Wayne suggested i swap the coil packs out with another cylinder.to see if its the coilpack. Started the car.and then i got this and the CEL light came on againīosch Digital Motor Electronics Motronic 7.8.1 This will not show up as a rich lean type switching of the post lambda sensor. A good OE cat will store oxygen for ten seconds or more. The engine management will carry out what's caused an oxygen storage test on the cats this is when the fuelling is altered while you are driving and it will measure the time the cats can store oxygen. There may not even be an issue with the rear sensor switching. Help Others as you would wish to be Helped by Others. This area is Kens field i feel ( 9 excellence )
my crude understanding is that the exhaust gass flow has been altered and is no longer as efficent as it was. The sensors will have no effect on the running problems you have. but it would be interesting to see if your car will pass an mot on emissions.
DURAMETRIC PORSCHE CODES CODE
Ĭant comment on maps knocking out the post cat lambdas to not generate a fault code im afraid. then thats going to be normal as they aint any good at being a filter for the exhaust gasses. On a standard car then the cats are not doing their job well enough, i would suspect its seeing switching on the post cat sensors. J Catalytic converter faulty (pre-catalytic conversion rate too low) J Aged oxygen sensor behind catalytic converter J Oxygen sensors in front of and behind catalytic converter swapped (position in exhaust assembly) It is not necessary to have the vehicle in motion for this. I No fault oxygen sensors, tank vent, secondary-air pump relay, secondary-air valve relay, throttle adjusting unit, mass air flow sensor, no misfire.Į The diagnostic conditions can also be established using the PIWIS Tester via the short test "Catalytic conversion". I 50 seconds (cumulative) within following load/rpm range I Oxygen sensors behind catalytic converter ready for operation I Oxygen sensing in front of catalytic converter active I Loading of activated charcoal filter < 8 The amplitudes allow conclusions to be drawn about the ability of the catalytic converter to store oxygen. The catalytic converter monitor compares the amplitude of the oxygen sensor behind the catalytic converter with the amplitude of a computed limit catalytic converter during defined air gulping and enrichment phases. Though did not make sence.as if i did not have the map.would that mean i would leave with my CEL light on? Still saying they have done many porsches and no issues with exhaust and map. Just spoke to top gear - they said when the map they do a o2 off.so the error does not come up.Īlso saying like above the sensors are more then likely ok. They are new 200cell big bore cats that were installed few months back by Sounds more like failing / failed catalysts than sensors to me. Last edited by SamUK on Mon 2:18 pm edited 1 time in total Map was removed from the car.and 2 days later my CEL has come one and not going awayīank 1 catalytic converter system insufficient effectīank 2 catalytic converter system insufficient effectĭoes this mean both my o2 sensors are faulty?Īnyone know cost of replacement? can i use a bosh part? can this be changed easily from under the car? This is around my issue with the hesitation i get at 1200rpm which was random, but now constant after my plug and coil-pack change.
Posted: Mon 2:13 pm Post subject: Durametric Codes - Help
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