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Discussion Starter · #1 ·
I installed a gauge on the R and its reading irradically. Company says I can only use an engine block ground and suggested to follow the battery strap down to the engine block ground.<p>I cant use the intake manifold, etc.... it HAS to be an engine block ground. <p>Any ideas from you tech guys?
 

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Re: Anyone Know where a good Engine Block Ground point is? (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">I installed a gauge on the R and its reading irradically. Company says I can only use an engine block ground and suggested to follow the battery strap down to the engine block ground.<p>I cant use the intake manifold, etc.... it HAS to be an engine block ground. <p>Any ideas from you tech guys?</TD></TR></TABLE><p>Well, that's going to be a long follow from your battery to your engine block. <p>The best ground point is in the engine bay up in the top right corner, just in front of the cowl. <p>Sounds like this gauge company is full of crap.
 

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Discussion Starter · #3 ·
Re: Anyone Know where a good Engine Block Ground point is? (Needsdecaf)

its in the directions "good engine block ground" and they say this happens occasionally. <p>I hope theyre not lol.<p>They said there was no point to continue unless I used that. Are there any under the hood or will I have to route to the battery? Is the engine block really grounded back there?
 

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Re: Anyone Know where a good Engine Block Ground point is? (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">its in the directions "good engine block ground" and they say this happens occasionally. <p>I hope theyre not lol.<p>They said there was no point to continue unless I used that. Are there any under the hood or will I have to route to the battery? Is the engine block really grounded back there?</TD></TR></TABLE><p>The engine block IS the ground. <p>For many cars with a front mounted battery, the negative terminal will go right to the block and that will be the main grounding point. Modern cars don't use quite the same setup. <p>The factory grounding points, especially the one in the engine bay, are "clean" electrically. If not, things like the ECU would not function well. When they say "engine block ground" they mean a good ground, not one that's steps removed from a main ground like say a mount for your stereo, which can be a ground point, but not reliable. <p>Use the factory grounding point in the engine bay.
 

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Discussion Starter · #5 ·
Re: Anyone Know where a good Engine Block Ground point is? (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">Use the factory grounding point in the engine bay. </TD></TR></TABLE><p>Thanks I will try this. We installed the gauge to the factory ground under the carpet in the front drivers side kickpanel by the hood release latch. <p>Is the one we used any worse than the one under the hood by the cowl?<p>For some reason I think they want this thing attached to where the frigging engine is grounded to the negative terminal.
 

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Re: Anyone Know where a good Engine Block Ground point is? (mpdbrown)

There is a good ground right next to the fuse panels under the hood. Make sure you get that bolt nice and tight again or you could have some other issues pop up!
 

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Re: Anyone Know where a good Engine Block Ground point is? (GiRaff3)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>GiRaff3</b> »</i></TD></TR><TR><TD CLASS="quote">There is a good ground right next to the fuse panels under the hood. Make sure you get that bolt nice and tight again or you could have some other issues pop up!</TD></TR></TABLE><p>You been eating those nuclear wings again? What did you think I was talking about, LOL. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0">
 

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Re: Anyone Know where a good Engine Block Ground point is? (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>You been eating those nuclear wings again? What did you think I was talking about, LOL. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0"> </TD></TR></TABLE><p>I have made it a habit to only partially read threads recently...<br>BTW, I had another one of those wings last Thursday! I ate all of it this time <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/rolleyes.gif" BORDER="0">
 

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Discussion Starter · #9 ·
Re: Anyone Know where a good Engine Block Ground point is? (GiRaff3)

so use that ground you guys are recommending, and if it doesnt work, call her crazy?
 

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Re: Anyone Know where a good Engine Block Ground point is? (mpdbrown)

There is no cable running from the negative terminal of the battery to the engine block. The battery is connected to the chassis in the trunk, and the "engine block" is connected to the chassis up front. The chassis is the ground conductor.<p>I would use the ground point that has been recommended by others already here. It is difficult to get to but one of the starter mounting bolts will always be a good ground point, less the starter not function properly.<p>Perhaps a little more information on the gauge would help out, what is it measuring, and what type of sensor is it using?
 

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Discussion Starter · #12 ·
Re: Anyone Know where a good Engine Block Ground point is? (rushin_max)

its a cyberdyne digital boost gauge installed in the CFW door pod.<p>reads correct vaccuum at idle but low vaccuum off throttle at highway speeds.<p>It doesnt get into boost until VERY late and creeps up only to about 4lbs of boost at wot.<p>its grounded under the carpet by the hood release cable which is currently a factory grounding point.
 

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Re: Anyone Know where a good Engine Block Ground point is? (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">its a cyberdyne digital boost gauge installed in the CFW door pod.<p>reads correct vaccuum at idle but low vaccuum off throttle at highway speeds.<p>It doesnt get into boost until VERY late and creeps up only to about 4lbs of boost at wot.<p>its grounded under the carpet by the hood release cable which is currently a factory grounding point.</TD></TR></TABLE><p>Sounds more like an issue with how it's reading boost....
 

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Discussion Starter · #14 ·
Re: Anyone Know where a good Engine Block Ground point is? (Needsdecaf)

Sounds alot like throw it in the garbage soon lol. <p>It was installed by someone whose done it before and he def knew what he was doing and his works.<p>Ill try another ground first.
 

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Discussion Starter · #15 ·
Re: Anyone Know where a good Engine Block Ground point is? (rushin_max)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>rushin_max</b> »</i></TD></TR><TR><TD CLASS="quote">I had same problem, where did you get ur gauge? (brand?)</TD></TR></TABLE><p>how did you remedy the problem?
 

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Re: Anyone Know where a good Engine Block Ground point is? (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>how did you remedy the problem?</TD></TR></TABLE><p>I got rid of the POS gauge. lol<p>Actually, I grounded the sensor straight to the chassis, and that helped(for a little while) But then it started skewing off again(didn't go back to zero, showed more vac. than it actually was)<p>Just get a mechanical and save urself the headache. ...or a good brand electronic.
 

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Discussion Starter · #17 ·
Re: Anyone Know where a good Engine Block Ground point is? (rushin_max)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>rushin_max</b> »</i></TD></TR><TR><TD CLASS="quote"><br>Just get a mechanical and save urself the headache. ...or a good brand electronic.</TD></TR></TABLE><p>I did. bit the $210 bullet...Defi blue racer boost gauge. I can use the existing wiring so it shouldnt be too bad to swap her in.<p><br> <IMG SRC="http://www.turbochargers.com/store/images/defiblue.jpg" BORDER="0">
 
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