Richie-Van-GTi 71 2 Cars Posted December 29, 2006 If Im wiring a lambda into a car that doesnt use a lambda how do I wire the 2 whites? (heater) Is it just one switched live and other is ground? Share this post Link to post Share on other sites
cybernck 402 1 Cars Posted December 29, 2006 it has been discussed recently so it's best to do a SEARCH. in the meantime, here's a pic of what wire goes where in Motronic loom: Share this post Link to post Share on other sites
Richie-Van-GTi 71 2 Cars Posted December 30, 2006 I have tried a search but all I can find is standard wiring answers with regards to the looms etc. I donthave a standard loom or ECU etc, Im using one purely for an air/fuel gauge and need to know how to get the heater working on it. Share this post Link to post Share on other sites
sonofsam 5 Posted December 30, 2006 http://forum.205gtidrivers.com/index.php?s...c=22101&hl= Does that help? Share this post Link to post Share on other sites
Richie-Van-GTi 71 2 Cars Posted December 30, 2006 yeah kind of, still isnt clearly stated if its timed or switched live? Will PM sam as he states he wired to ignition but has a ? after it. Share this post Link to post Share on other sites
Owain1602 0 Posted January 1, 2007 It needs to be on a timer, its not that important in your situation to get the length of time spot on because you can just run it for a bit to get the sensor up to working temp, do you have a cat fitted? if not the sensor will take longer to heat up unless you place it close to the exhaust ports. Share this post Link to post Share on other sites
Rippthrough 98 Posted January 1, 2007 Timed circuit, although some of the wideband sensors like the innovate one control it themselves and just need a constant 12v feed. Share this post Link to post Share on other sites
Richie-Van-GTi 71 2 Cars Posted January 1, 2007 hmm, looks like I need to come up with a timer solution. Any one any ideas on how to do it? Lmabda will be in the downpipe just after the bend and I dont have a cat. Share this post Link to post Share on other sites
Rippthrough 98 Posted January 1, 2007 Tbh, with narrowband sensors I don't think it matters too much bar the extra current drain, certainly I've seen a few cars that just power the heater straight from the fuel pump relay. Share this post Link to post Share on other sites
Richie-Van-GTi 71 2 Cars Posted January 1, 2007 how long doo glowplugs stay on for? could I use on of the control boxes off a TD? Share this post Link to post Share on other sites
Rippthrough 98 Posted January 1, 2007 how long doo glowplugs stay on for? could I use on of the control boxes off a TD? I not 100% but I think its 30 seconds, which would be fine, I don't know if they have afterglow too though? I know mine only takes 8 seconds to get up to temperature, but it's a brand new bosch sensor and heater. Share this post Link to post Share on other sites
Owain1602 0 Posted January 1, 2007 It all depends on the car really but older totally mechanical diesel pumps will stay on for quite a bit, not 30seconds though. Whilst other newer ones dont come on for long at all and its not to aid starting really, its just to shorten the flame burn delay whilst its cold. Im sure you could use a glow plug relay quite simply really, all that will happen is the sensor will not become active if its not up to temperature. But it all depends on other things really, hard to say without knowing the management system. Maybe it will be using lambda all the time, even with a cold engine which would not be good cos the sensor wouldn't be up to temperature therefore not producing the right signal, but might be irrelevant. Will be simple though, no need to over-think. Share this post Link to post Share on other sites
Rippthrough 98 Posted January 1, 2007 narrow bands are high impedence until warmed up, but they would give incorrect readings if they aren't warm enough. I've just been told its a touch under 20 seconds by a diesel owning friend of mine, which is still fine. -Phillip Share this post Link to post Share on other sites
pug_ham 244 3 Cars Posted January 2, 2007 how long doo glowplugs stay on for? could I use on of the control boxes off a TD? Longer than it takes for the light to go out on the dash, listen carefully & you can hear them click off so I'd say 20-30 seconds on mine. There were some 405's that had a different glowplug relay which kept them powered for a few minutes on cold engines afaik. Graham. Share this post Link to post Share on other sites
Richie-Van-GTi 71 2 Cars Posted January 2, 2007 execellent, I thin k I have a 306 TD glowplug relay somewhere, if not I'll get one fom a breakers this week. Thanks for all the advice Share this post Link to post Share on other sites
snillet 1 Posted January 18, 2008 There´s no need for the timer, for exaple XU9JAZ and XU9J4Z and TONS of other engines just powers it straight from the fuelpumpfeed. Share this post Link to post Share on other sites
