shadow Posted March 19, 2008 Report Share Posted March 19, 2008 Seems to have just died all of a sudden. Is this common? No big deal as long as the turbo is working I am okay with no gauge Quote Link to comment Share on other sites More sharing options...
RareGMFan Posted March 19, 2008 Report Share Posted March 19, 2008 The gauge that came in my TGP was dead when I bought it. I swapped it over to another cluster, and it was fine. Quote Link to comment Share on other sites More sharing options...
Addicted2bass Posted March 20, 2008 Report Share Posted March 20, 2008 Mine still works but its way off. Usually its down in negative boost. It has an aftermarket one to....not sure how accurate it is, it was on the car when ni bought it. Its a cheapy pep boys one tho, im thinking of getting a new one when i redo my pillar pod. Quote Link to comment Share on other sites More sharing options...
GutlessSupreme Posted March 20, 2008 Report Share Posted March 20, 2008 All the stock ones are pretty inaccurate.. I've never heard of one dying though. Doesn't surprise me, considering all of the other problems our clusters have. Quote Link to comment Share on other sites More sharing options...
shadow Posted March 23, 2008 Author Report Share Posted March 23, 2008 All the stock ones are pretty inaccurate.. I've never heard of one dying though. Doesn't surprise me, considering all of the other problems our clusters have. Yeah I am wondering if its just a bad connection on the cluster itself. My F150 has a supercharger and I never installed a boost gauge in that truck so I wont miss it in this car. Quote Link to comment Share on other sites More sharing options...
jeremy Posted March 23, 2008 Report Share Posted March 23, 2008 just put in an aftermarket guage and call it a day Quote Link to comment Share on other sites More sharing options...
Addicted To Boost Posted March 23, 2008 Report Share Posted March 23, 2008 If the boost gauge isn't working, it is likely that your vacuum source is damaged. Time to start checking for broken, melted, disconnected, or loose vacuum lines and fittings. Quote Link to comment Share on other sites More sharing options...
Pontiac6KSTEAWD Posted March 23, 2008 Report Share Posted March 23, 2008 Not entirely true Nick. My boost guage is broken as well. But I know I am creating boost, and have no vacume leaks. Its just a bad cluster, which is typical for these turbos. Quote Link to comment Share on other sites More sharing options...
shadow Posted March 23, 2008 Author Report Share Posted March 23, 2008 Yeah it works sometimes but only for a short period of time plus I think it read really low. Quote Link to comment Share on other sites More sharing options...
Pontiac6KSTEAWD Posted March 23, 2008 Report Share Posted March 23, 2008 Sounds like it needs to be rebuilt Dont forget to join the TGPforums also. Lots of good info over there. Quote Link to comment Share on other sites More sharing options...
Addicted To Boost Posted March 23, 2008 Report Share Posted March 23, 2008 Not entirely true Nick. My boost guage is broken as well. But I know I am creating boost, and have no vacume leaks. Its just a bad cluster, which is typical for these turbos. If the boost gauge isn't working, it is likely that your vacuum source is damaged. Time to start checking for broken, melted, disconnected, or loose vacuum lines and fittings. I said it was likely that it was a vacuum line problem. Often the vac line is disconnected or is damaged at the map sensor. I had this problem with my TGP when I first got it, and that is what the problem was. It could very well be a gauge issue too, since these gauge clusters seem to have so many issues. Quote Link to comment Share on other sites More sharing options...
RareGMFan Posted March 23, 2008 Report Share Posted March 23, 2008 Yeah it works sometimes but only for a short period of time plus I think it read really low. That reminded me, mine would periodically work out of no where too, then go back to not responding. Since I wanted to try my other clusters to find one that was more accurate anyway, I swapped it out, and the turbo gauge responded fine on the replacement one. Certainly couldn't hurt to check your line first. If you find nothing there, then search for a replacement cluster. I started a thread about what I was planning to do with the gauge cluster if I were going to keep the turbos. I'd still like to follow through with this, though, even though I'm selling them. http://www.w-body.com/forum/index.php?topic=54295.0 Quote Link to comment Share on other sites More sharing options...
shadow Posted April 8, 2008 Author Report Share Posted April 8, 2008 Yes it has been randomly working and not working lately. Should the boost level ever touch +15 ? Quote Link to comment Share on other sites More sharing options...
Addicted To Boost Posted April 8, 2008 Report Share Posted April 8, 2008 Yes it has been randomly working and not working lately. Should the boost level ever touch +15 ? Only if the car has been chipped. Stock it should not. Quote Link to comment Share on other sites More sharing options...
mfewtrail Posted April 9, 2008 Report Share Posted April 9, 2008 I remember a video of John's stock(besides a K&N filter) pegging the boost gauge. It's not really hitting 15psi though, that's just from the gauge being so inaccurate. My chipped TGP's peg the stock gauge despite only running around 11psi at most. Quote Link to comment Share on other sites More sharing options...
shadow Posted April 9, 2008 Author Report Share Posted April 9, 2008 Is there a connection under the hood for the boost sensor? I notice the boost gauge works on an off when I hit big bumps. Quote Link to comment Share on other sites More sharing options...
Addicted To Boost Posted April 9, 2008 Report Share Posted April 9, 2008 Like I said before, it could be a vacuum leak.. check all your rubber couplers, especially the ones around the turbo- they get brittle from all that heat. Quote Link to comment Share on other sites More sharing options...
GutlessSupreme Posted April 9, 2008 Report Share Posted April 9, 2008 The boost gauge gets info from the ECM through the MAP sensor, but your car would prolly be running like crap if the MAP was bad or disconnected. It's located on the rear of the plenum, closest sensor to the alternator, right in front of the firewall. Quote Link to comment Share on other sites More sharing options...
Pontiac6KSTEAWD Posted April 9, 2008 Report Share Posted April 9, 2008 Mine works when I hit big bumps, and smack the dashboard. The cluster needs to be rebuilt. Quote Link to comment Share on other sites More sharing options...
shadow Posted April 27, 2008 Author Report Share Posted April 27, 2008 Mine works when I hit big bumps, and smack the dashboard. The cluster needs to be rebuilt. Yep thats what mine does too. I am pretty good with the soldering iron so I may get brave and remove the cluster and check it out. Quote Link to comment Share on other sites More sharing options...
bullet Posted May 7, 2008 Report Share Posted May 7, 2008 Yes it has been randomly working and not working lately. Should the boost level ever touch +15 ? mine did. but IMO don't bother fixing it, cuz it's a stock gauge. And stock is never completely accurate either. Just buy an Autometer or something and tuck it to the side of the cluster. unless you like the factory stock look with no extras, which I can completely respect! Quote Link to comment Share on other sites More sharing options...
92 GP Posted May 12, 2008 Report Share Posted May 12, 2008 Mine still works but its way off. Usually its down in negative boost. LOL. THat's because when your Turbo isn't spooling the engine is pulling vacuum ("negative" boost). How else do you expect air to get in there? Quote Link to comment Share on other sites More sharing options...
shadow Posted May 12, 2008 Author Report Share Posted May 12, 2008 Mine still works but its way off. Usually its down in negative boost. LOL. THat's because when your Turbo isn't spooling the engine is pulling vacuum ("negative" boost). How else do you expect air to get in there? I was curious about that too...thanks for the answer. Quote Link to comment Share on other sites More sharing options...
krenzy Posted May 12, 2008 Report Share Posted May 12, 2008 Most aftermarket boost gauges have "Vacuum/Boost" written on them. Quote Link to comment Share on other sites More sharing options...
92 GP Posted May 13, 2008 Report Share Posted May 13, 2008 No problem Not too hard if you think about it. I mean the piston rings keep the seal air tight right? So when the engine is on the intake stroke...the piston is going down with the intake valve open...dun dun duh DUUUNNN.. Vacuum! So ya, that's why most gauges have a boost/vacuum setting, which to me is pretty convenient. But most boost gauges (aftermarket) are just tapped into a vacuum line. the TGP stock one, as mentioned earlier, uses the readings from the computer that are derived from the MAP (Manifold Absolute Pressure) sensor that detects vacuum, and of course with FI vehicles, boost pressure. Quote Link to comment Share on other sites More sharing options...
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