Menoporsche Posted February 7 Report Share Posted February 7 I know I need a code reader. Ironically it's (probably) in the back of the other car which is away having its coolant system sorted... Got the car back a couple of weeks ago from having a new clutch etc, and drove it around a bit before this appeared. No idea if they are related. In my MY08, if I get a CEL and the message "Check Engine Visit Workshop", am I right that the car is still driveable? Because if not it would say something more urgent like "Do not drive"? All stabs in the dark welcome... Quote Link to comment Share on other sites More sharing options...
iborguk Posted February 7 Report Share Posted February 7 (edited) If it’s not a flashing CEL then it’s ok to drive but would get it looked at sooner than later. Can you drop by a garage with which has the appropriate code reader ? If it’s driving ok I’ll bet on something exhaust related but that’s just that , a guess… Edited February 7 by iborguk Quote Link to comment Share on other sites More sharing options...
Paul P Posted February 7 Report Share Posted February 7 Check the fluids (oil and water) and assuming its not overheating or suffering any other obvious issues then should be fine until you can get it checked - think you have said it's not so easy as amazon next day where you are - but a 20 quid code reader would tell you enough to inform the next steps Quote Link to comment Share on other sites More sharing options...
Menoporsche Posted February 7 Author Report Share Posted February 7 It's not flashing I haven't had a chance to/ dared to drive it since that message appeared. The agreement is my mechanic finishes the Toyota, brings it to me and drives off in the Boxster. His workshop is about half an hour away, so it sounds like it shouldn't blow up on the way there. Just that the Toyota is taking more days than expected (solve one coolant leak, system builds pressure then exposes another leak! - then need to wait for parts each time) and it's frustrating that we have no car. It was supposed to come Friday, then Monday, then today but he messaged me just after midnight last night to say he's found another one . It's the usual hindsight, if I'd known of the delays I would have already ordered a code reader. OK sod it, just ordered the iCarsoft, arrives Friday 1 Quote Link to comment Share on other sites More sharing options...
ricof Posted February 7 Report Share Posted February 7 I'm placing a bet that it's secondary air pump related! Quote Link to comment Share on other sites More sharing options...
iborguk Posted February 7 Report Share Posted February 7 5 Quote Link to comment Share on other sites More sharing options...
EXY Posted February 7 Report Share Posted February 7 1 hour ago, iborguk said: Just the orange ones Quote Link to comment Share on other sites More sharing options...
Mattman42 Posted February 7 Report Share Posted February 7 disconnect the battery for 20mins and reconnect - see if the CEL comes back on? Not ideal, but may be a one off Quote Link to comment Share on other sites More sharing options...
½cwt Posted February 7 Report Share Posted February 7 (edited) Was that the N rated iCarsoft you ordered, of not the car will explode when you connect it. 🤣 Edited February 7 by ½cwt 1 Quote Link to comment Share on other sites More sharing options...
iborguk Posted February 7 Report Share Posted February 7 R Rated for when it doesn't start. Quote Link to comment Share on other sites More sharing options...
Menoporsche Posted February 8 Author Report Share Posted February 8 icarsoft arrived a day earlier than predicted 👍 "P0431, Warm up catalyst efficiency below threshold, Bank 2." Sounds to me like "you have a slight leak in the exhaust, ok to drive until you can get it fixed". Quote Link to comment Share on other sites More sharing options...
iborguk Posted February 8 Report Share Posted February 8 (edited) 30 minutes ago, Menoporsche said: icarsoft arrived a day earlier than predicted 👍 "P0431, Warm up catalyst efficiency below threshold, Bank 2." Sounds to me like "you have a slight leak in the exhaust, ok to drive until you can get it fixed". Could be... P0431 Catalytic conversion NOTE 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. The amplitudes allow conclusions to be drawn about the ability of the catalytic converter to store oxygen. Diagnostic conditions Engine start temperature > -15°C (5 °F) Catalytic converter temperature 385 .... 635°C (725-1175 °F) Loading of activated charcoal filter < 8 Oxygen sensing in front of catalytic converter active Oxygen sensors behind catalytic converter ready for operation 50 seconds (cumulative) within following load/rpm range Engine speed 1280 .... 2880 rpm Engine load (relative filling) 22 .... 41% No fault oxygen sensors, tank vent, secondary-air pump relay, secondary-air valve relay, throttle adjusting unit, mass air flow sensor, no misfire. The diagnostic conditions can also be established using the PIWIS Tester via the short test "Catalytic conversion". It is not necessary to have the vehicle in motion for this. Possible fault causes Oxygen sensors in front of and behind catalytic converter swapped (position in exhaust assembly) Valve lift error Aged oxygen sensor behind catalytic converter Catalytic converter faulty (pre-catalytic conversion rate too low) If an aged oxygen sensor (oxygen sensor signal behind catalytic converter, dynamism) is detected together with this fault: remedy the fault "Oxygen sensor signal behind catalytic converter,dynamism" first, then check if this fault - catalytic conversion - has been entered again. Edited February 8 by iborguk 1 Quote Link to comment Share on other sites More sharing options...
Paul P Posted February 8 Report Share Posted February 8 Or. Turn it off and see if it stays gone. 1 Quote Link to comment Share on other sites More sharing options...
½cwt Posted February 8 Report Share Posted February 8 Are your exhaust bolts/studs very rusty? Could be the start of a leaking system which would skew the lambda readings throwing up a catalysing out of range fault. Or a dying lambda sensor. Check the live data with the iCarsoft and if one reading is constant or completely out of range that could indicate a duff lambda. Definitely 'override and reset' is the first step and investigate in more depth if it returns. 1 Quote Link to comment Share on other sites More sharing options...
Menoporsche Posted February 8 Author Report Share Posted February 8 It's howling a gale outside. Give me a couple of hours, see if I can take it out later tonight with a reset. Quote Link to comment Share on other sites More sharing options...
Menoporsche Posted March 4 Author Report Share Posted March 4 On 2/8/2024 at 3:08 PM, Menoporsche said: "P0431, Warm up catalyst efficiency below threshold, Bank 2." Sounds to me like "you have a slight leak in the exhaust, ok to drive until you can get it fixed". Cleared it then, it stayed away for a month, back again today. Will check when indie is free, to get it looked at. Quote Link to comment Share on other sites More sharing options...
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