Saxo Engine/Performance If you're interested in tuning Saxo engines, or if you need to know something which is engine related... this is the place for you. |
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5th January 2003, 04:35
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#1
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L-plater
Join Date: Jan 2003
Location: United Kingdom
Posts: 91
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Which wire on 3plug ECU, or anywhere on the loom can I tap for the lambda signal????
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5th January 2003, 06:18
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#2
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Administrator
Join Date: Dec 2002
Location: Warrington
Posts: 20,551
Car(s): Blue Saxo VTS Turbo/White Megane F1 R26
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It's easy enough if you tap into the lambda sensor wiring loom itself... I did know the pin, but not off the top of my head.
I will check when I get home from work and post here...
Simo'
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5th January 2003, 06:52
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#3
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L-plater
Join Date: Jan 2003
Location: United Kingdom
Posts: 91
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Thanks M8. I thought I had found lambda wiring loom. blue Plug mounted ontop of gearbox. When I tapped the black wire, the meter did not read a thing. Power light was on though
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5th January 2003, 23:41
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#4
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Administrator
Join Date: Dec 2002
Location: Warrington
Posts: 20,551
Car(s): Blue Saxo VTS Turbo/White Megane F1 R26
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Find the lambda sensor and trace it back towards the gerabox area... connector should be black with a red side clip which pulls out. There should be 4 wires...
The pin you need to connect to is either on pin 3 or pin 4... (checked in Haynes).
Not sure which is input and output from the diagram though... I will have a check on my car for you.
Simo'
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6th January 2003, 04:52
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#5
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L-plater
Join Date: Jan 2003
Location: United Kingdom
Posts: 91
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Thanks Dude, I have connected it to the black on the block, but get strange readings. E.G the lights on the meter are flying around everywhere and not rising progressively to a point like i would have expected. They just rise and fall very quickly. If you could have a look at where you have connected that would be muchos appreciated. Cheers.
Rich
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6th January 2003, 18:47
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#6
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Frequent Poster
Join Date: Jan 2003
Location: Bogota Colombia
Posts: 917
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Are you conecting a Fuel/Air Mix indicator?? Like the one i have at the top of the three shown on the pic??
<img border="0" src= "http://ranjel.20megsfree.com/images/photo1055.jpg">
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6th January 2003, 18:53
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#7
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Frequent Poster
Join Date: Jan 2003
Location: Bogota Colombia
Posts: 917
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If so, you will be expecting it to move up (rich) and down (poor) like 3 times every second. This is the ECU working and trying to find always the best mixture of fuel and air. So if it moves up and down a lot its completely normal. Only when you push the gas pedal down for a second or two, will you se how rich or poor your mixture really is.
Hope this helps.
<img src= "smileys/smiley4.gif"><img src= "smileys/smiley4.gif">
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6th January 2003, 20:48
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#8
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L-plater
Join Date: Jan 2003
Location: United Kingdom
Posts: 91
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Thanks M8, That helped. And thanks for all the vids you keep posting on SSC too, Most ammusing <img src= "smileys/laugh.gif">
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6th January 2003, 21:44
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#9
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Frequent Poster
Join Date: Jan 2003
Location: Bogota Colombia
Posts: 917
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No Problem Mate!!! Glad I could help..
Regarding the videos, I just sent Simo like 15 more!!!! We will have to wait for him to host them in the Video Section<img src= "smileys/smiley4.gif"><img src= "smileys/smiley4.gif"><img src= "smileys/smiley4.gif"><img src= "smileys/smiley4.gif">
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9th January 2003, 01:57
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#10
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Administrator
Join Date: Dec 2002
Location: Warrington
Posts: 20,551
Car(s): Blue Saxo VTS Turbo/White Megane F1 R26
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The lambda signal should cycle up and down.. this is how the ecu targets its setpoint.... and alters richer/weaker accordingly.
Sounds like its wired in fine to me.. <img src= "smileys/wink.gif">
Ricardo... as soon as I get back mate.. <img src= "smileys/smiley2.gif">
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9th January 2003, 05:43
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#11
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L-plater
Join Date: Jan 2003
Location: United Kingdom
Posts: 91
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<img src= "smileys/cool.gif">Cool!
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15th January 2003, 01:47
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#12
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Saxperience Forum Bum
Join Date: Jan 2003
Location: Scotland
Posts: 3,380
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imformation!!
i have seen 3 damaged ecus, which have had A,.F.R meters attached to std sensor,do not guess at connections and keep the meter away from interference ,as the spikes can damage ecu. I only will reccommend stand alone units due to this
__________________
when the flag drops the bulshit stops.
owner of GMC motorsport 01671404030/01671403699
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15th January 2003, 01:49
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#13
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Saxperience Forum Bum
Join Date: Jan 2003
Location: Scotland
Posts: 3,380
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std probe connectors have a sheilding in the wiring loom all the way to ecu ,there is a reason!!
__________________
when the flag drops the bulshit stops.
owner of GMC motorsport 01671404030/01671403699
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