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littco
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« Reply #15 on: January 28, 2013, 09:29:53 AM »
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Ok... Mine were Definately different between agu and bam. So no ideas there.
Can only suggest timing then. Assume you've put a stock map back onto elongate any map issues?
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20VTMK1
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« Reply #16 on: January 28, 2013, 09:36:37 AM »
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Ok... Mine were Definately different between agu and bam. So no ideas there.
Can only suggest timing then. Assume you've put a stock map back onto elongate any map issues?
Hi , As i said , i dotn doubt your findings .. just puzzled with my findings ... Yes , with the stock map , its pretty much the same . I even got the EGT limit exceeded code in one instance |
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littco
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« Reply #17 on: January 28, 2013, 09:54:59 AM »
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I'm going to say cam timings out then.
Not had a look at the logs but what's the requested v actual lambda? And what timing you running when its going rich?
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prj
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« Reply #18 on: January 28, 2013, 09:58:37 AM »
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hi ,
Question : The logs show 4 th gear pull's , yet I used 3rd gear. Could this be the issue ? No, this just means you will have to re-tune gear detection later. |
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20VTMK1
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« Reply #19 on: January 28, 2013, 10:04:29 AM »
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I'm going to say cam timings out then.
Not had a look at the logs but what's the requested v actual lambda? And what timing you running when its going rich?
From 2000 rpm till 4500 rpm or so , its fine , 0.82 req vs 0.81 ~ 0.82 , after 4500 rpm , egt's start climbing and it then starts to go down to 0.63 req , 0.75 actual. I have read up that 0.75 is the richest the ecu will register - the reason why my lm2 is spot on to the ecu requested. Timing is as follows 3000 rpm , 4.5 deg 3500 rpm , 3 deg 4000 rpm , 7.5 deg 4500 rpm , 13 deg Red line its at 22-24 deg |
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« Last Edit: January 28, 2013, 01:34:41 PM by 20VTMK1 »
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20VTMK1
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« Reply #20 on: January 28, 2013, 10:05:29 AM »
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No, this just means you will have to re-tune gear detection later.
Thanks PRJ , least of my problems now ... I will look into this at the end of the project |
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prj
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« Reply #21 on: January 28, 2013, 10:06:36 AM »
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Check physical cam timing, your timing is out I think.
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20VTMK1
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« Reply #22 on: January 28, 2013, 10:09:39 AM »
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I did , I also took it to an audi tech , he commented its all good , a few dollars later ..
Ok , so I will look into it again .
Know of any resource that documents this fairly well ? The setup proceudre ? I will you tube it and google as well .
Also , no fault codes related to crank angle and cam position.
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littco
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« Reply #23 on: January 28, 2013, 10:18:24 AM »
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There's a mark on the crank pulley and one on the engine block, these should align along with the mark on the cam pulley and cam cover.
What are your egt temps as per the log at 4500rpm? That's incredible low and by co-incidence about the point cdnws ( cam switch takes place) might be worth setting cdnws to 0 to lock the cam and stop switching and see if that helps.
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20VTMK1
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« Reply #24 on: January 28, 2013, 10:43:28 AM »
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Hi ,
850 at 4500 rpm , 875 @ 4750 rpm
Yes , I recall those cam/crank timing marks . I will re look at this shortly.
So lock the camshafts as a test ? Its seems to me that the egt's are high from the onset. From 2000 rpm , the egt is already close to 700 deg c
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20VTMK1
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« Reply #25 on: January 28, 2013, 10:53:10 AM »
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There's a mark on the crank pulley and one on the engine block, these should align along with the mark on the cam pulley and cam cover.
What are your egt temps as per the log at 4500rpm? That's incredible low and by co-incidence about the point cdnws ( cam switch takes place) might be worth setting cdnws to 0 to lock the cam and stop switching and see if that helps.
Is it not low since I didnt really ad timing to the stock maps ? Or should the ecu advance till it gets to the optimum timing ? Do you change both the basic and optimum timing maps ? |
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20VTMK1
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« Reply #26 on: January 28, 2013, 01:37:37 PM »
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Hi ,
I checked the crank to cam timing.
I lined up the marks on the valve cover and exh cam pulley. At this point the crank pulley was approx 2-3mm(to the rear of the engine) away from the mark on the block. I take it tis was retarded in relation to the cams . Redid the belt tension and it seems good now .
Lets see how it goes.
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