CAJ Innovations Forums - Theoretical question

greenmonster Full Member Offline Sweden Posts: 196	Theoretical question 12/01/10 at 10:42:06 Interpolation & other issues aside, could the whole 500 RPM row (all TPS values) in InjDur table be set to 0?
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_Cliff_ YaBB Moderator Offline I Love YaBB 2! Posts: 126	Re: Theoretical question Reply #1 - 12/01/10 at 14:19:07 The 500 RPM column is important for starting the engine. It may also come into play when you let the clutch out too early with not enough throttle.
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greenmonster

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Sweden

Posts: 196

Re: Theoretical question
Reply #2 - 12/02/10 at 10:04:27

From http://www.jefferies-au.org/MyECU/index.htm : Sorting the starts:

Quote:

During stage 1. the throttle is ignored completely. This allows flooding to be cleared by opening the throttle. The injector duration is controlled only by the "Prime" line in the map.

My question:
Quote:

could the whole 500 RPM row (all TPS values)
in InjDur table be set to 0?

Answer.
Quote:

The 500 RPM column is important for starting the engine.

I`m a little confused,
does the the first 500 RPM row in InjDur table
affect starting or not?!?

Just want to know.

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« Last Edit: 12/02/10 at 10:06:38 by greenmonster »

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_Cliff_ YaBB Moderator Offline I Love YaBB 2! Posts: 126	Re: Theoretical question Reply #3 - 12/02/10 at 10:18:45 There is stage 2 after stage 1. If you do what you suggest you will fire but not run.
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greenmonster Full Member Offline Sweden Posts: 196	Re: Theoretical question Reply #4 - 12/02/10 at 10:51:01 The amount of fuel for starting, is it only the Prime line that decides all fuel or does InjDur table 500 RPM row also affect the amount of fuel for starting BEFORE it runs?
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_Cliff_ YaBB Moderator Offline I Love YaBB 2! Posts: 126	Re: Theoretical question Reply #5 - 12/02/10 at 11:10:04 The former - the prime table with the injector dead time InjVOn also.
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greenmonster Full Member Offline Sweden Posts: 196	Re: Theoretical question Reply #6 - 12/03/10 at 00:09:00 OK, thx.
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COnewbie Full Member Offline 97 Sport1100i My16M MkVII 2 LC-1s Posts: 120 Central Oregon, USA Gender:	Re: Theoretical question Reply #7 - 12/27/10 at 10:16:47 I think a light just went on in my head. Up until now, the only way I could get my '97 Sport i started was by using the throttle while cranking, but I thought that was normal. I guess that means that my Prime setting is too rich, right?
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YaBB Administrator YaBB Administrator Offline I love YaBB! Posts: 679 The Land of YaBB	Re: Theoretical question Reply #8 - 12/27/10 at 11:11:54 It is easy to be too rich or lean as that table has quite an effect. Only change those entries by 1 at a time and remember its temperature indexed.
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COnewbie Full Member Offline 97 Sport1100i My16M MkVII 2 LC-1s Posts: 120 Central Oregon, USA Gender:	Re: Theoretical question Reply #9 - 12/27/10 at 12:51:28 Yeah, it's -1 C in my garage right now, so I think I'll wait awhile before I get back to work on it. Thanks for the info, though.
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