MR2 Roadster Owners Club

The Workshop => Performance Related => Topic started by: Two's Company on September 4, 2006, 18:33

Title: Quick Unichip install question
Post by: Two's Company on September 4, 2006, 18:33
I'm putting the Unichip back in after the MOT and I can't remember whether the lead for the switches plugs into the Unichip or the PnP harness.   s:? :? s:?  

Does anyone know off the top of their head?

Thanks
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Post by: Two's Company on September 4, 2006, 19:12
I figured that it must plug into the PnP harness while putting it back.   s:wink: :wink: s:wink:
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Post by: spit on September 4, 2006, 22:37
Nicely done Steve ... Top thread   s:wink: :wink: s:wink:  

Just to get some mileage from this before I delete it, did you get your leaky driveshaft boot sorted? Did they treat you to a new joint or just the boot?
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Post by: Two's Company on September 5, 2006, 08:50
Quote from: "spit"Nicely done Steve ... Top thread   s:wink: :wink: s:wink:  

Just to get some mileage from this before I delete it, did you get your leaky driveshaft boot sorted? Did they treat you to a new joint or just the boot?

Cheeky bugger   s:roll: :roll: s:roll:  

Just a new boot, I didn't push for a new joint now I have the extended warranty to call upon   s:wink: :wink: s:wink:
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Post by: peppyuk on September 5, 2006, 09:15
Why did you remove the Unichip for the MOT ?
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Post by: Two's Company on September 5, 2006, 09:58
I read on here that it can increase emissions and lead to a fail.  For the sake of 10 mins I thought I might as well take it out.

Even with it out the limits for lambda sensor reading are between 0.97-1.03 and mine was 1.03.  Not sure if the unichip would affect this?

I drove around for a week with it out and the car feels like a yaris without it.   s:D :D s:D
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Post by: GSB on September 5, 2006, 11:04
MOT tests are looking specifically at closed loop fuel control, which the Unichip has no effect on. Unichip only affects the open loop map.
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Post by: spit on September 5, 2006, 17:43
Quote from: "Two's Company"Cheeky bugger   s:roll: :roll: s:roll:  

OK I won;t delete it - there's some mileage in the 'chip/emissions debate and the boot business  s:wink: :wink: s:wink:  

Hope they cleaned up all the cack that had sprayed onto the firewall/battery tray etc. ?
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Post by: Two's Company on September 6, 2006, 08:43
Quote from: "spit"Hope they cleaned up all the cack that had sprayed onto the firewall/battery tray etc. ?

I haven't checked but I think I know the answer.   s:wink: :wink: s:wink:
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Post by: Anonymous on September 6, 2006, 09:56
Quote from: "GSB"MOT tests are looking specifically at closed loop fuel control, which the Unichip has no effect on. Unichip only affects the open loop map.

Would an MOT tester run the car until it was warm and running in closed loop? Or just crack on even if the car wasn't in closed loop?
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Post by: Anonymous on September 6, 2006, 13:44
Mine has just passed it's 1st MOT with the unichip plugged in. My  lambda reading was spot on.

Shouldn't effect things.
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Post by: Two's Company on September 6, 2006, 14:00
Cheers guys, I won't bother taking it out next year   s:D :D s:D
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Post by: GSB on September 6, 2006, 14:14
Quote from: "Matt"
Quote from: "GSB"MOT tests are looking specifically at closed loop fuel control, which the Unichip has no effect on. Unichip only affects the open loop map.

Would an MOT tester run the car until it was warm and running in closed loop? Or just crack on even if the car wasn't in closed loop?

It should be warm, but its up to you to make sure really.
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Post by: heathstimpson on September 7, 2006, 07:02
Wasn't there an issue with the American programmed maps even in closed loop  s:?: :?: s:?:
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Post by: Chris on September 15, 2006, 09:50
more than likely heath, as mine is an american map and failed it's first mot emissions test earlier this year, which maybe what two's company was aluding too...

either that or maybe the garage didn't wait until it was warm, if that makes a difference...  either way, i think i'll still be taking it out next year.
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Post by: heathstimpson on September 15, 2006, 13:35
Quote from: "Chris"more than likely heath, as mine is an american map and failed it's first mot emissions test earlier this year, which maybe what two's company was aluding too...

either that or maybe the garage didn't wait until it was warm, if that makes a difference...  either way, i think i'll still be taking it out next year.
I took mine out for the first MOT but will maybe give it a go next time. I have a local friend who knows does MOT testing so may be a little more lenient  s:wink: :wink: s:wink: