hodge Posted October 9, 2011 Share Posted October 9, 2011 Was out in the car today, all was good, after parking up for a few hours I started the car and drove home. I noticed my AEM wideband gauge was sitting at 14.8 with no movement what so ever. Even under different loads it wouldn't move. It raised concern because its linked to my Syvecs of lambda and My dash2 is linked to my ECU via a can bus cable and the AFR reading on there wasn't moving either. I kept the car off boost with a very steady drive home. I'll plug the laptop in tomorrow to see if it's just the gauge but I'm thinking it's the sensor has failed. Now ice got the sensor in the midpipe so there's not much of a heat issue there. Anyone had this issue before and if so what actually was the problem and how was it rectified. Thanks John Quote Link to comment Share on other sites More sharing options...
Lee P Posted October 9, 2011 Share Posted October 9, 2011 Faulty sensor mate, had this before. Swap it over and all should be fine. Quote Link to comment Share on other sites More sharing options...
hodge Posted October 9, 2011 Author Share Posted October 9, 2011 Faulty sensor mate, had this before. Swap it over and all should be fine. Thought as much. Thanks Lee. Quote Link to comment Share on other sites More sharing options...
bignum Posted October 9, 2011 Share Posted October 9, 2011 Theres a walkthrough on how to test the sensor here mate,http://youtu.be/1mb4VmDd0ao Quote Link to comment Share on other sites More sharing options...
hodge Posted October 9, 2011 Author Share Posted October 9, 2011 I'll check that out tomorrow mate. Thank you. Quote Link to comment Share on other sites More sharing options...
dude Posted October 9, 2011 Share Posted October 9, 2011 Are you using the UEGO sensor for the syvecs as well as the guage ??? The Uego sensor is a bit of a cheapy dude, we run a much better one for the Syvecs, how close to the turbo is the sensor? extreme heat does kill em. Quote Link to comment Share on other sites More sharing options...
hodge Posted October 9, 2011 Author Share Posted October 9, 2011 Are you using the UEGO sensor for the syvecs as well as the guage ??? The Uego sensor is a bit of a cheapy dude, we run a much better one for the Syvecs, how close to the turbo is the sensor? extreme heat does kill em. I'm using the signal wire from the gauge to the Syvecs John. The sensor is in the midpipe. I fed the sensor through the grommet in the transmission tunnel and into the midpipe. Quote Link to comment Share on other sites More sharing options...
dude Posted October 9, 2011 Share Posted October 9, 2011 I'm using the signal wire from the gauge to the Syvecs John. The sensor is in the midpipe. I fed the sensor through the grommet in the transmission tunnel and into the midpipe. The better/more expensive the wideband the faster it reactes/sends signal to ecu, the uego one is around £50, the one we use for ecu is about £200, the one we get for the dyno can be up £1000, I have heard tell of widebands lab grade costing £5000. It would seem all widebands are not created equal. Quote Link to comment Share on other sites More sharing options...
hodge Posted October 9, 2011 Author Share Posted October 9, 2011 The better/more expensive the wideband the faster it reactes/sends signal to ecu, the uego one is around £50, the one we use for ecu is about £200, the one we get for the dyno can be up £1000, I have heard tell of widebands lab grade costing £5000. It would seem all widebands are not created equal. Feckin hell. I'll just order a new AEM sensor tomorrow. And here's me saving my pennies to build a new engine. Sad times. Quote Link to comment Share on other sites More sharing options...
dude Posted October 9, 2011 Share Posted October 9, 2011 I would run 2 widebands John, 1 for the guage and a better one for the ecu, I think the ecu ones are Bosch, I know you can get one from Charlie at SRR, give Matt a ring in the morning and he will tell you what we use, is the Syvecs set to close loop at the moment, ie is it relying on the wideband ??? Quote Link to comment Share on other sites More sharing options...
hodge Posted October 9, 2011 Author Share Posted October 9, 2011 I would run 2 widebands John, 1 for the guage and a better one for the ecu, I think the ecu ones are Bosch, I know you can get one from Charlie at SRR, give Matt a ring in the morning and he will tell you what we use, is the Syvecs set to close loop at the moment, ie is it relying on the wideband ??? I'm not sure how Ryan mapped it John TBH. I'll look into adding another sensor over the winter once the car is off the road for a bit of a refresh. Quote Link to comment Share on other sites More sharing options...
Lee P Posted October 9, 2011 Share Posted October 9, 2011 It will only be using the wideband to trim the fueling, Ryan will have mapped it with out the sensor. Dont worry about that. As Dude says you can buy a sensor which will wire directly into the syvecs as the AEM one wont work on the Syvecs. I would replace you AEM one for now and then if your worried about the reliability of it get a specific one for the Syvecs at a later date and run the two. The other option would be to ditch the AEM one completely, if you have a sensor wired direct into the Syvecs you will be able to see it on the dash 2 anyway so you wont need the gauge. Quote Link to comment Share on other sites More sharing options...
hodge Posted October 9, 2011 Author Share Posted October 9, 2011 Think I'll add another sensor over the winter Lee. I like having the wideband gauge there. Quote Link to comment Share on other sites More sharing options...
FOSTA Posted October 9, 2011 Share Posted October 9, 2011 Hey mate I was reading on how to connect the aem wideband to the e-manage last nite and I came across a thread where someone had connected the signal White wire to the e-manage and both times it fooked the sensor! Both sensors when failed read 14.8 with no movement. So sounds like it's failed mate. Quote Link to comment Share on other sites More sharing options...
hodge Posted October 10, 2011 Author Share Posted October 10, 2011 Hey mate I was reading on how to connect the aem wideband to the e-manage last nite and I came across a thread where someone had connected the signal White wire to the e-manage and both times it fooked the sensor! Both sensors when failed read 14.8 with no movement. So sounds like it's failed mate. Thanks Jamie, aye I'm going to order a new sensor today mate. Let's hope this 1 lasts a little longer that 3 months. I'll get under the car and pull it out today for inspection. Quote Link to comment Share on other sites More sharing options...
Ryan.G Posted October 10, 2011 Share Posted October 10, 2011 Check the connection of the sensor also as if it loses connection of the Ion Pump on the sensor it will read 14.8 constantly. Ryan Quote Link to comment Share on other sites More sharing options...
hodge Posted October 10, 2011 Author Share Posted October 10, 2011 Check the connection of the sensor also as if it loses connection of the Ion Pump on the sensor it will read 14.8 constantly. Ryan Will do chief. I'll check it all over today. If I get no joy I'll order a new sensor. Quote Link to comment Share on other sites More sharing options...
hodge Posted October 10, 2011 Author Share Posted October 10, 2011 Just ordered a new sensor from EFI-Parts. There not the cheapest but I know there delivery is very quick so I should have it by Wednesday at the latest. I'll report my results once it's fitted. Quote Link to comment Share on other sites More sharing options...
mellonman Posted October 10, 2011 Share Posted October 10, 2011 Check the connection of the sensor also as if it loses connection of the Ion Pump on the sensor it will read 14.8 constantly. Ryan i agree its probably the wires out the back of the guage that have come out for it to be a constant 14.8 that is what it puts out as a default so can be calabrated with a ecu,when you diconnect the sensor Quote Link to comment Share on other sites More sharing options...
hodge Posted October 10, 2011 Author Share Posted October 10, 2011 i agree its probably the wires out the back of the guage that have come out for it to be a constant 14.8 that is what it puts out as a default so can be calabrated with a ecu,when you diconnect the sensor Ive just taken the dash out and checked the back of the gauge and all is good. ive also checked the connection from the AEM loom to the sensor and that is fine too. i guess its a bad sensor. just as a final check, ill plug the laptop into the Syvecs to see what reading its getting from the sensor. Quote Link to comment Share on other sites More sharing options...
hodge Posted October 10, 2011 Author Share Posted October 10, 2011 ive just checked the signal from the Syvecs and its seeing 14.88-14.91 so that confirms the sensor in my book. Quote Link to comment Share on other sites More sharing options...
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