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Nov 30, 2018 19:22:46 GMT
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i recently picked this taskmaster exhaust gas analyzer up would anyone have a copy of the manual for this ive looked online and cant find one i have stuck this on my 205 gti no cat and at idle and is in the idle zone to the left also stuck it on a mk3 astra multipoint injection with cat and at idle is in the ecs idle zone to the right. are these two idle zones marked on the dial for cat and non cat cheers for any help
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Nov 30, 2018 20:42:09 GMT
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Sorry cant help you, but I'm looking for something like this, what should I expect to pay?? Pm if preferd. Cheers
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Nov 30, 2018 20:54:40 GMT
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analog ones seem to fetch ok money these days ive been looking for one before i got this. this cost me £35 in a box with some old spanners and sockets at an auction the other stuff in the box was junk really only bought it for this
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Nov 30, 2018 20:56:36 GMT
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Ok, thanks. Hope you sort a manual out.
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hard to find anything for these old tools heathkit did a similar one that theres a bit of info out there...most are just connect and wait 10 mins to settle then adjust the knob to 0 in free air better off with a wideband kit if you can stretch to the ££££ got myself this one the other week for £50, but youre never sure if you can trust it
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91 golf g60, 89 golf 16v , 88 polo breadvan
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already got a gunson digital one don't like it. digital reading jumps all over the place when adjusting a engine. wanted an old school one with dial. i under stand when i plug it in to let it settle then adjust the nob to set before i start i just really want to know what the two idle zones mean on the gauge. is the second one on the right taking into account for a cat lowering the emissions.
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well if its accurate then compare to this chart www.mgexp.com/article/co-afr.htmlthe black numbers labeled air fuel ratio = a co reading on the chart , your manual should should give an idea what to set it to my inj polo says 1% co for example
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91 golf g60, 89 golf 16v , 88 polo breadvan
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Rich
Club Retro Rides Member
Posts: 6,226
Club RR Member Number: 160
Member is Online
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Usually you would power up, allow to stabilise in fresh air then zero it out to a number on the scale like my old CryptonTune, but I cannot recall what the number should actually be sadly.
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ChasR
RR Helper
motivation
Posts: 10,188
Club RR Member Number: 170
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FWIW, the above AFR chart can be used with an AFR gauge as well. I saw this before and even looked into charts after this post, but it seems Des Hammil's ignition book actually had this information anyway, and it's a book I've had for years! It seems an AFR gauge would have been handy for me many years ago as a few people suggested. I possibly could have got a few cars to struggle less with the MOT and AFR values with one of these. That said, I did manage to make my old Triumph Stag just pass the emissions for a post -75 standard. Also, the above CO to AFR chart changes when there is a catalytic converter involved. www.researchgate.net/figure/Exhaust-composition-as-a-function-of-air-excess-ratio-over-stoichiometry-lambada-18_fig3_34286046
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Last Edit: Dec 9, 2018 17:40:35 GMT by ChasR
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got myself this one the other week for £50, but youre never sure if you can trust it That's very similar to one of my car boot sale finds last year, for £2 or £3 I think, although yours is the fancy digital version. This black one was also sold by Blue Point, apparently. A mate has the same unit, and when I was trying to get my recent project through the first MOT after the rebuild, I borrowed it and the reading it got was just about exactly the same as the MOT tester got. So a future task is to put the two together and see how my reading compares to his.
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