slim_crx 0 Posted February 7, 2012 well hello all, over here in northern ireland and was up for the mot, well the co on idle is through the roof, is ther anything on the throttle body to srew it down or anything, or is it a remapping job! any help would be great Quote Share this post Link to post Share on other sites
steveo29 0 Posted February 7, 2012 you ajust the co with the co pot ...its a small matchbox size black box in the boost tube Quote Share this post Link to post Share on other sites
slim_crx 0 Posted February 7, 2012 thanks pal, thats the box jus before the throttle body on that pipe, and how does it adjust can i ask Quote Share this post Link to post Share on other sites
16VG60 1 Posted February 7, 2012 Check your vac hose to the ECU is securely connected to the correct pipe on the throttle valve, and that it is not split etc. Before you can adjust the CO% level at the potentiometer you will need to follow the correct procedure to then in turn allow adjustment. Furthermore you will require an exhaust has analyser. Sent from my iPhone using Tapatalk Quote Share this post Link to post Share on other sites
slim_crx 0 Posted February 7, 2012 o ok, i had the throttle valve off before and all the pipes seemed ok, ok and how do i do that, what all do i need to do, ive a exhaust gas analyser at work so will be able to get it right with that Quote Share this post Link to post Share on other sites
16VG60 1 Posted February 7, 2012 Get the engine to 80 degrees oil temp. Unplug the blue ECU temp sensor plug. Remove the cam cover breather hose from the boost return pipe, and angle it away from boost return connection. Rev the engine three times, each time in excess of 3000 rpm. Connect analyser. Adjust CO% and idle to allow correct settings. When done rev engine once above 3000 rpm and re-connect plugs and hoses. Sent from my iPhone using Tapatalk Quote Share this post Link to post Share on other sites
slim_crx 0 Posted February 7, 2012 thanks pal, thats a great help, will get that done asap, Quote Share this post Link to post Share on other sites
16VG60 1 Posted February 7, 2012 My pleasure fella, good luck. Regards, John JMR Sent from my iPhone using Tapatalk Quote Share this post Link to post Share on other sites
steveo29 0 Posted February 8, 2012 might be a tamper proof cap on that box , pop it out and theres a screw head under it Quote Share this post Link to post Share on other sites
slim_crx 0 Posted February 8, 2012 was thinking that, didnt see one on it before so hopefully something on it, thanks Quote Share this post Link to post Share on other sites
slim_crx 0 Posted February 11, 2012 so in work here and put the gas analyser on and its not over the limit no more, was sitting at around 1.50 and i turned it down to 1.00, what should i set it to! also on the day of my mot i had the car out at a boys doing some work and he disconnected the battery and couldnt get it started after and when i went out it was very hard to start, took ages, could hav been flooded, would this have had anything to do with it saying it was running rich! ive a air/fuel ratio gauge on car and it was showing it was fine at mot so dont know why it was so high, but all seems ok now, do i bring it up to mot or do yous guys have any ideas Quote Share this post Link to post Share on other sites
Album56 0 Posted February 12, 2012 When you used the analyser the blue sensor was disconnected? A faulty sensor can make the ECU think the engine is cold when its not & overfuel your engine. Did you check with the analyser after you had set the CO & reconnected the blue sensor? A faulty sensor could also make starting difficult with very rich mixture. Quote Share this post Link to post Share on other sites
