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[Field Marshal Dr. Opti]

The failure slip for Mrs Opti's RX8 reads...........Exhaust emissions lambda reading after 2nd fast idle outside specified limits (7.3.D.4)

But looking at the emissions slip it seems that  no second fast idle test was carried out. It just reads "Not Done". No figures......no   pass/fail....nothing.

It's probably all perfectly innocent, but is this normal for the MOT emissions test?

[Lazydocker]

From memory it should be Idle, Fast Idle, 2nd Fast Idle (if needed) and all should show on the slip

[Field Marshal Dr. Opti]

From memory it should be Idle, Fast Idle, 2nd Fast Idle (if needed) and all should show on the slip

Thanks LD. My emissions slip is as follows.

Fast Idle Test
Engine speed
CO Level
HC Level
Lambda


Second Fast  Idle Test
Engine Speed
CO Level
HC Level
Lambda


Natural Idle Test
Engine Speed
CO Level

The second fast idle test and Natural idle test were marked "Not Done"

She goes in for another test tomorrow.......so any information would be of help.

[Lazydocker]

Need a more up to date tester (I haven't done an MOT test for over 10 years!) to confirm but I would be suspicious that it wasn't done correctly

[Field Marshal Dr. Opti]

Need a more up to date tester (I haven't done an MOT test for over 10 years!) to confirm but I would be suspicious that it wasn't done correctly

Thanks, LD. Maybe it would have passed on the second fast idle test......but for some unknown reason it wasn't done. Weird.

[b4ndit]

second fast idle test is done if the car fails the first fast idle test, if it passes the first it does not need the second one to be done

[Field Marshal Dr. Opti]

second fast idle test is done if the car fails the first fast idle test, if it passes the first it does not need the second one to be done

That's what I thought.

The car failed the first fast idle test on the lambda reading. 1.12 ( should be between 0.97-1.03)

So why no second fast idle test?

[Lazydocker]

Is this the first test or a retest?

[Field Marshal Dr. Opti]

Is this the first test or a retest?

First test.

[Lazydocker]

Is this the first test or a retest?

First test.

Thought it was strange that the reading was identical

[Field Marshal Dr. Opti]

Is this the first test or a retest?

First test.

Thought it was strange that the reading was identical

Booked in at a different garage tomorrow. £34.95 to find out.

[Lazydocker]

Is this the first test or a retest?

First test.

Thought it was strange that the reading was identical

Booked in at a different garage tomorrow. £34.95 to find out.

Give it a good thrashing on the way there and aim to arrive at the time it's due. If at all possible, try to leave it running when you book in unless it's going to be left waiting for a while

[hercules]

could be £34.95 well spent 

[tidla]

The only trouble is that the exhaust test is usually done last as its coming off the ramp some 30-45 mins later. I think a voluntary smoke test might be better before the test. If ok then a test at the same station.

[Lazydocker]

The only trouble is that the exhaust test is usually done last as its coming off the ramp some 30-45 mins later. I think a voluntary smoke test might be better before the test. If ok then a test at the same station.

But it shouldn't be Any tester worth his salt should do it immediately on driving the car into the test station (assuming it is warm enough) and we always did, as do the test station(s) I use