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Discussion Starter · #1 ·
hey guys, I installed my boost gauge this past friday and everything worked perfectly. it was reading spikes to 16 but held at 14 at wot in 3rd and 4th gear. <p>I havent really driven the car since then but today going to and from work it would spike to 14-15 in 3rd and 4th but settled at 11-12lbs. It has been very humid lately and is about 80 degrees and 80% humidity.<p>Is it possible for these conditions to affect the iat that much to drop my boost almost 5lbs? that would be pathetic lol.<p>I dont remember the conditions friday but it was at night and wasnt nearly as humid.
 

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Mine always hits 14 at WOT no matter what the temps even at ~ 95 although we are quite dry right now in SoDak so that might play into it.
 

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Re: (stormchasin_racin)

If you don't have an ECU mod, the car is 1 bar or 14.7PSI boost, I thought. Start reducing from this # based on atmospherics/temps, etc.
 

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Discussion Starter · #4 ·
Re: (Short Circuit)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Short Circuit</b> »</i></TD></TR><TR><TD CLASS="quote">If you don't have an ECU mod, the car is 1 bar or 14.7PSI boost, I thought. Start reducing from this # based on atmospherics/temps, etc.</TD></TR></TABLE><p><br>i have a stock ECU.<p>the intercooler is no longer efficient after 70 degrees? (something Ive heard on here...)<p>how much of an effect does humidity have?
 

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Re: (mpdbrown)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>mpdbrown</b> »</i></TD></TR><TR><TD CLASS="quote"><p><br>i have a stock ECU.<p>the intercooler is no longer efficient after 70 degrees? (something Ive heard on here...)<p>how much of an effect does humidity have?</TD></TR></TABLE><p>No, it is not effective at 70 degrees. <p>You will not always get max boost at WOT, even when freezing out. The car has a drive by wire pedal which really isn't a "throttle pedal". It is a torque request pedal. The computer sees what you've requested and adjust boost, timing, fuel, throttle to match what you need, or what it can give. <p>
 

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Re: (Short Circuit)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Short Circuit</b> »</i></TD></TR><TR><TD CLASS="quote">If you don't have an ECU mod, the car is 1 bar or 14.7PSI boost, I thought. Start reducing from this # based on atmospherics/temps, etc.</TD></TR></TABLE><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Short Circuit</b> »</i></TD></TR><TR><TD CLASS="quote">If you don't have an ECU mod, the car is 1 bar or 14.7PSI boost, I thought. Start reducing from this # based on atmospherics/temps, etc.</TD></TR></TABLE><p>1.2 Bar. <p>
 

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Discussion Starter · #7 ·
Re: (Needsdecaf)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Needsdecaf</b> »</i></TD></TR><TR><TD CLASS="quote"><p>No, it is not effective at 70 degrees. <p>You will not always get max boost at WOT, even when freezing out. The car has a drive by wire pedal which really isn't a "throttle pedal". It is a torque request pedal. The computer sees what you've requested and adjust boost, timing, fuel, throttle to match what you need, or what it can give. <p></TD></TR></TABLE><p>So i should beat on it and really smash the pedal? lol.<p>So 12lbs is normal for the most part and when the temps drop i should see more consistent boost readings?
 

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Re: (mpdbrown)

<B>VERY</B> low boost
 

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Re: (mpdbrown)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>mpdbrown</b> »</i></TD></TR><TR><TD CLASS="quote">exactly what i was thinking. now why?<p>tcv is 25K old...</TD></TR></TABLE><p>And the journey begins...<p>TCV might be the issue. First though, check for leaks in any vacuum hoses. Be very thorough. Start there, then maybe swap the TCV.
 

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Discussion Starter · #11 ·
Re: (Johnr352)

well this morning....damn thing starts reading correctly again lol.<p>started the commute with 12 lbs...then i laid on it in 3rd for about 10 seconds and boost started to creep up to 14-15lbs.<p>now it reaches 14-15 with no problem and holds there all day. spikes to 16-17.<p>So now what do you guys think was the issue? Temps were down to 70F. did the ecu just grow a pair and allow for full boost?
 

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Re: (mpdbrown)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>mpdbrown</b> »</i></TD></TR><TR><TD CLASS="quote"><p>So now what do you guys think was the issue? Temps were down to 70F. did the ecu just grow a pair and allow for full boost?</TD></TR></TABLE><p>Yes....
 

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Re: (mpdbrown)

You know I had a very similar issue. Car felt a bit slow, looking at the boost gauge it struggled to go past 14psi. Pulled the ECM fuse, took it around the block <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0"> . 21+ psi spikes and levels out to about 19 - 20 psi. In fifth gear it's at about 22 psi.
 

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Re: (xman03)

If it went back to normal, feel lucky. My first R would not boost past 10psi, and I tried everything. There have been other members with the same issue. At the very least, I think you have seen the effects that summer can have on the R. FMIC time?
 

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Re: (mpdbrown)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>mpdbrown</b> »</i></TD></TR><TR><TD CLASS="quote">well this morning....damn thing starts reading correctly again lol.<p>started the commute with 12 lbs...then i laid on it in 3rd for about 10 seconds and boost started to creep up to 14-15lbs.<p>now it reaches 14-15 with no problem and holds there all day. spikes to 16-17.<p>So now what do you guys think was the issue? Temps were down to 70F. did the ecu just grow a pair and allow for full boost?</TD></TR></TABLE><p>Once I had bad gas... <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/eek.gif" BORDER="0"> <p>But it might well have been the temp, or just the ecu determined you didn't need the boost at that moment.
 

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Discussion Starter · #16 ·
Re: (Johnr352)

well yea i feel lucky then lol. such a pain, first having to install my first gauge only to have the company tell me it basically wont work on my car. then having to buy this new expensive gauge and have it read correctly for a day.<p>im just glad its all over lol. and yea i guess it will go back down but at least I will know why....<p>Yea FMIC would be nice but im pretty sure DP is next for me. its just easier...
 

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Re: (mpdbrown)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>mpdbrown</b> »</i></TD></TR><TR><TD CLASS="quote"><p>Yea FMIC would be nice but im pretty sure DP is next for me. its just easier...</TD></TR></TABLE><p>Easier yes, but not as effective in the long run.
 
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