psdtech Posted August 24, 2006 Share Posted August 24, 2006 Has anyone performed the ka pinpoint test since they changed it? I dont understand the way they want you to check turbo boost it just doesnt seem like you can accurate results this way. I have not performed these test yet just read about it and am drawing on previous experience /forums/images/%%GRAEMLIN_URL%%/shrug.gif Quote Link to comment Share on other sites More sharing options...
LR Mike Posted August 24, 2006 Share Posted August 24, 2006 I assume you are talking about KA6? What they are looking for is a difference in MGP when the VGT is at 0% vs 85% (the most you can command) of at least 3kPa at 1200rpm. Not much! I have done this test (KA) a few times, and I find I get quicker results by visually checking the actuator operation, KA11, before I get too far. This is pretty good at letting you know if the VGT is moving at all. I have found that often when this test is done the actuator will only move nearer the 85% command, no visual movement closer to 0% at all! Quote Link to comment Share on other sites More sharing options...
CERTIFIEDFORDTEC Posted August 25, 2006 Share Posted August 25, 2006 I've done the test and it seems they all pass it but when you go and drive it and check mgp under wot the vgt goes to 15% which means the vanes are stuck...go figure! Quote Link to comment Share on other sites More sharing options...
Mekanik Posted August 29, 2006 Share Posted August 29, 2006 What I was told to do by anenginer is to crank up the rpm to 1200. Command the vgt to 85%, with the egr commanded closed. Then let it get nice and hot for about 10 minutes. I was told to do this before watching the cam move in the turbo. It is also a good idea to take out that 8mm allen plug before doing this. Also the cam will not move until I think like 25% or 35%. Quote Link to comment Share on other sites More sharing options...
LR Mike Posted August 29, 2006 Share Posted August 29, 2006 There are something like 7 or 8 'steps' that can be commanded between 0 and 85%, but the VGT won't react to the first 1 or 2 even on a known good unit. If it is just the first 2 not moving, I wouldn't be worried. Most bad ones seem to stick and not move until over 50%. Quote Link to comment Share on other sites More sharing options...
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