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Old 21st April 2011, 10:04
chrislandy chrislandy is offline
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Any competent tuner with the correct software should be able to put it into a decent state of tune (unless the z cars thing is over complicated). I made the mistake in thinking my engine would need to be fully mapped for the SVA but they only check the emissions at idle and fast idle iirc. In the end I "tuned" mine on the drive to idle within the lambda required using a wideband o2 sensor and rev nicely then took it to a local friendly mot station, slipped them 10 to use their emissions tester, plugged the laptop in and got the HC's and Lambda within the test critera - you have to be quick though as you don't want it to get so hot the compensation tables kick in. I also took the lappy to the SVA test and was able to tweek it a little to make it pass on the day
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