FREDMANE Posted December 14, 2014 Share Posted December 14, 2014 So I replaced my ignition coils yesterday night and when I got the car back up and running I monitored somethings including boost like always. I noticed that my "lowest" amount was -39 and "highest" was +39psi. This did not happen before. I did a log and it only peaked at these values for less than a tenth of a second. Any Idea what is causing this? I attached a log showing the action (Row 1016 and 1344)1016 and 1344 boost peaks.csv Link to comment Share on other sites More sharing options...
DeltaNu1142 Posted December 14, 2014 Share Posted December 14, 2014 What are you using to log? It's likely noise. Tits mcgee Link to comment Share on other sites More sharing options...
iNVAR Posted December 14, 2014 Share Posted December 14, 2014 Noise, agreed. Link to comment Share on other sites More sharing options...
cryo Posted December 14, 2014 Share Posted December 14, 2014 The factory map sensor cannot read nearly that high. I have had other customers experience this as well since cobb updated to a fast logging protocol. It can be ruled out as noise like mentioned above. Dave [sIGPIC][/sIGPIC] Providing unmatched customer service and a Premium level of Dyno/E-tuning to the Community cryotuneperformance@yahoo.com facebook.com/cryotuneperformance. Link to comment Share on other sites More sharing options...
FREDMANE Posted December 14, 2014 Author Share Posted December 14, 2014 All logs done through accessport. Boost is measured by noise...? I'm confused by what you mean, please elaborate for me. Thanks! Link to comment Share on other sites More sharing options...
MrTris Posted December 14, 2014 Share Posted December 14, 2014 They mean mechanical noise as interference in the sensor, since it can't read that high anyway. It's a misread. Link to comment Share on other sites More sharing options...
FREDMANE Posted December 14, 2014 Author Share Posted December 14, 2014 I am running an etune by BrenTuning just fyi . I'm currently stage 2+ Link to comment Share on other sites More sharing options...
FREDMANE Posted December 14, 2014 Author Share Posted December 14, 2014 Thank you! Any way to prevent this? Or do I have to deal with it Link to comment Share on other sites More sharing options...
DeltaNu1142 Posted December 14, 2014 Share Posted December 14, 2014 Signal noise, not audible noise: Wikipedia Thank you! Any way to prevent this? Or do I have to deal with it The only time you have to "deal with it" is when you're looking at the logs. Any other time, you won't notice it. Tits mcgee Link to comment Share on other sites More sharing options...
iNVAR Posted December 14, 2014 Share Posted December 14, 2014 Deal with it. Just ignore that row. Or if it makes you feel better, just delete/blank out the cell. I get that from time to time using RR and my vagcom cable. Link to comment Share on other sites More sharing options...
FREDMANE Posted December 14, 2014 Author Share Posted December 14, 2014 Thanks for the input guys. Nearly shat myself on the way home from work Link to comment Share on other sites More sharing options...
MrTris Posted December 14, 2014 Share Posted December 14, 2014 If you want to rid yourself of it completely, I suggest replacing the sensor. Link to comment Share on other sites More sharing options...
FREDMANE Posted December 14, 2014 Author Share Posted December 14, 2014 Replace with OEM or is there a better aftermarket sensor? I appreciate the help everyone Link to comment Share on other sites More sharing options...
iNVAR Posted December 14, 2014 Share Posted December 14, 2014 Uhm, don't replace it, wtf. It could just be electrical interference on the cable and/or bad grounds.... why would you tell him to replace the sensor. Link to comment Share on other sites More sharing options...
DeltaNu1142 Posted December 14, 2014 Share Posted December 14, 2014 As indicated by Dave above, there's no guarantee that replacing the entire car would rid you of this "problem," which would more accurately be described as "barely a nuisance." I haven't read my logs in over a year. I would move on to more pressing issues, like what's on TV or what is causing that smell behind your fridge. Tits mcgee Link to comment Share on other sites More sharing options...
FREDMANE Posted December 14, 2014 Author Share Posted December 14, 2014 :l okay then Link to comment Share on other sites More sharing options...
MrTris Posted December 14, 2014 Share Posted December 14, 2014 You're right, no guarantee it'll fix the problem. Link to comment Share on other sites More sharing options...
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