S2 Running rich.... Why?

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Re: S2 Running rich.... Why?

Postby Simon_P » Wed 18.09.2019, 14:39

lotusflasherman wrote:In the UK they will not test a car with a leaking exhaust as the Emissions Test is not valid so I reckon that's why Simon's car failed.

Too much guessing Phil!
It didn't fail for a leaking exhaust it failed on emissions "Exhaust Lambda reading after second fast idle outside specified limits (8.2.1.2 (c))" The tester said it was probably due to a small leak in the exhaust system but he couldn't find one.

lotusflasherman wrote:In the UK they will not test a car with a leaking exhaust as the Emissions Test is not valid
In answer to your earlier question. If exhaust is only at positive pressure a leak would only let gas out there would be no effect on the Emissions test.
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Re: S2 Running rich.... Why?

Postby Simon_P » Wed 18.09.2019, 14:51

GeoffSmith wrote:I had a PROM error on 2/8/10. That was after a flat battery and it soon cleared.
That's the Geeky bit, quoting the date that you had a prom error... or were you referring to a mathematical series?
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Re: S2 Running rich.... Why?

Postby GeoffSmith » Wed 18.09.2019, 17:32

Simon_P wrote:
GeoffSmith wrote:I had a PROM error on 2/8/10. That was after a flat battery and it soon cleared.
That's the Geeky bit, quoting the date that you had a prom error... or were you referring to a mathematical series?
Oh it was very geeky. I know the date because I collect .es files. :-D
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Re: S2 Running rich.... Why?

Postby HJ2 » Tue 08.10.2019, 21:07

Sorry to see no update yet.
Could an off base timing cause rich running?
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Re: S2 Running rich.... Why?

Postby Simon_P » Tue 08.10.2019, 23:58

Hi HJ
HJ2 wrote:Could an off base timing cause rich running?

Yes and no. Your question may be mixing cause and effect.
Yes Ignition timing has a direct effect on emissions so it is worth checking that it is correct.

can you post an elanscan ?
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