Jim Warman Posted December 9, 2007 Share Posted December 9, 2007 Getting back into my role as "posting !@#!?$!".... may last job of the week (finished on what should have been a day off and barely two hours before me and my smiling face were due at the staff Xmas party) was an early 04 that ran bad cold and not much better warm. It already had the induction heating flash, two memory codes for cylinder 3 and a couple (IIRC) of boost related codes - most likely from the misfire on 3. As part of our normal test routine, we have started looking for ICP bias... Just wondering if anyone else has started to include doing this in their normal diag and what guys are finding when they do look at ICP_V? Quote Link to comment Share on other sites More sharing options...
Brad Clayton Posted December 9, 2007 Share Posted December 9, 2007 I check everyone here in Vermont and 99% are dead on. I treat it like the correlation pids which I also check on everyone, map-ebp-baro. Quote Link to comment Share on other sites More sharing options...
DwayneGorniak Posted December 10, 2007 Share Posted December 10, 2007 I look at ICP on every single truck I work on Jim. I find bad ICP's on early builds all the time and I have even found a couple lately on later ones. ICP is something that I see overlooked all too often. And I have won over alot of customers that have gone through reflash repairs at other dealerships and all kinds of Egr valves, etc. I never trust ICP sensors. /forums/images/%%GRAEMLIN_URL%%/2cents.gif Quote Link to comment Share on other sites More sharing options...
Brad Clayton Posted December 10, 2007 Share Posted December 10, 2007 I think that looking at ICP_V as well as any other voltage pid (versus) the inferred reading is gonna be the norm pretty soon. It's kinda like the natural progression from checking a wire with an ohm meter to doing a voltage drop test to even take it further by load testing the wire. I like to call it the "burn your fingers blind your eyes" test because I use a high beam halogen bulb. Quote Link to comment Share on other sites More sharing options...
Bruce Amacker Posted December 14, 2007 Share Posted December 14, 2007 I think that looking at ICP_V as well as any other voltage pid (versus) the inferred reading is gonna be the norm pretty soon. Agreed. I think the WSM has a misprint, showing KOEO at .02v when it means to say .2v. I use .18-.24 KOEO (0psi) as my limits. This doesn't say it's good, it just means it might be OK. The only true way to check bias is with a "tee" fitting and adapter like I did a while back. Original thread: http://www.forddoctorsdts.com/forums/ubb...gonew=1#UNREAD: /forums/images/%%GRAEMLIN_URL%%/grin.gif Quote Link to comment Share on other sites More sharing options...
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