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#1 | ||
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Junior Member
Join Date: Nov 2009
Posts: 6
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There seems to be a lot of talk about all the obd11 gauges and a lot of questions.
Maybe I can explain and hopefully help people that may be new or are un decided. obd11 gauges are fantastic for someone who has a stock car and just wants to see what is going on with engine management etc.They are also good for someone that has control of the stock ecu ie power axel dealers. For someone that decides to tune their car ie rrm or cmd ,it becomes obsolete because they are fooler tunes and the ecu will not see the actual numbers because of map clamps etc. So to summerize ,stock car not looking to tune obd11 great choice. Looking to tune and see the actual numbers pick direct line gauges |
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#2 | ||
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Senior Member
Join Date: Apr 2009
Location: ATX
Posts: 4,924
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So to summarize, you're incorrect on just about all of it. Nice try though.
It's OBD2 or OBDII not OBD11. Scan gauges can be useful for anyone, tuned, not tune, etc... Most scan gauges can show instant MPG, exhaust/cat temps, 0-60 times, 02 volts, clear stored codes, show coolant, intake and ambient temp, a whole bunch more that can be useful to anyone. The only value clamped is MAP/TIP on CMD, all other values show up correctly. MAP/TIP will show correctly up to whatever clamp value you have set. IE you'll show real boost until Xpsi that CMD says not to let the ECU see. Clamp it at 17, run the 16psi tune and call it a day. I was able to hit 17.5 on mine without the ECU throwing a fit... How do you even know what if anything is clamped on RRMs? They haven't said if they clamp the values of anything. It's not like if you throw CMD or RRM on the car all of a sudden your coolant gauge isn't going to work, 02 volts will be off, throttle % will be off, need I go on? |
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#3 | |||
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Evo 9 kit FTW!!
Join Date: Sep 2009
Location: MSP - Twin Cities
Posts: 422
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#4 | |||
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Junior Member
Join Date: Nov 2009
Posts: 6
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Quote:
I should never have used the word clamp I should have stuck with fooling the ecu, would that be a better term. One post and you ripped me a new one,Tks for the warm welcome |
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#5 | |||||
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Senior Member
Join Date: Apr 2009
Location: ATX
Posts: 4,924
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Quote:
Quote:
With RRM the same as above would be true, except perhaps MAP, since we don't know if it clamps. Timing would also be read incorrectly using a scangauge with RRM, i think. I also would hope, and assume, that RRM isn't messing with throttle settings, no need. It doesn't make a scan gauge useless with CMD or RRM. Quote:
Last edited by CrookedH; 11-25-2009 at 08:36 PM.. |
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#6 | |||
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Junior Member
Join Date: Nov 2009
Posts: 6
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#7 | ||
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Senior Member
Join Date: Apr 2009
Location: ATX
Posts: 4,924
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Did you not read my posts? Or do you just not understand them?
You say its obd11, well it's not. It's obd2 or obdII. Shows you most likely don't know what it even stands for or what it's purpose is if you're calling the second/third generation of onboard diagnostics the eleventh generation. You then go on to say a scan gauge is useless to people using RRM and CMD because they clamp values. RRM may or may not, we don't know, so that again, was misinformation. CMD does, but just losing PSI above X and a couple duty cycle readings doesn't make a device worthless due to it's dozens of other correct informational readings. Perhaps something like: FYI, if you have a scan gauge and use a tuning device that clamps or skews values, some of the info might not be displayed correctly. That gets your point across without FUD and misinformation. |
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#12 | ||
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Banhammer power activate!
Moderator
Join Date: Nov 2008
Location: Greenwood, SC
Posts: 7,925
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obd OVER NINE THOUSAAAAAAAAAAND!
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- "If you are flammable and have legs, then you are never blocking a fire exit. You can write that down and put a dash in front of it, and put my name at the bottom." Mitch Hedberg |
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#13 | |||
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Noob
Join Date: Jan 2009
Posts: 473
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Quote:
![]() ![]() Dude, if you are going to post something on a specific topic, make sure you have good knowledge of it. There is always somebody who knows more and better than you. Next thing you know, somebody will chime in and ask you for details on your TD04 19T setup, then proceed to school you on that, too. It's the internet. Everybody is an expert. You thought you would teach somebody something and got schooled by somebody else. Deal with it. |
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#14 | ||
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FKA - Whyte 380GT
Join Date: Jul 2009
Location: St. Paul, Minnesota
Posts: 3,134
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Does anyone have any insight what gauges would work best with my flux capacitor?
__________________
White 3.8L V6 - AT SuperLux LED Tailights 20% Tint Carbon Fiber "H" emblem KDM Matte Black LED Mirrors KPR Tow Hook RRM SRI RRM Pulley DD LED Stage 3 upgrade DD 8K HID Seibon Carbon Fiber TS Hood Stance GR+ Coilovers 7ism Catback exhaust 19" Takata Green Volk Te37 245/35 & 275/35 Hankook Ventus V12 Evo M&S Night Shadow Bumper with LED's Custom painted roof and trunk lid |
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#15 | ||
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Senior Member
Join Date: May 2009
Location: Washington, DC
Posts: 1,637
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Something in the Giggawattz range. Maybe obdgiggawattz?
__________________
2010 Lime Rock Green V6 M/T Track w/Navigation |
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#16 | ||
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Use the F'n Search Button
Join Date: May 2009
Location: Pittsburgh
Posts: 3,300
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__________________
My Current Car: My Past Cars: My Current Mods: What I'm Selling: My Dramatic Life Quote: Blah, Blah, Blah |
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#17 | |||
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Senior Member
Join Date: Jul 2009
Posts: 4,138
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Lol. Wow. flamer fest lol
Quote:
Clamping refers to making the ECU see a false reading, intentionally. Be it using a diode to "clamp" a pressure value from the MAP sensors, or from a module (CMD). A reflash would just reprogram the ECU. BTW a 19T wheel on the turbo, without any type of tuning won't really do anything, besides just hitting peak boost lower in the RPMs. Might cause some boost spikes, if you light it up, but then, you would throw an engine code. Your understanding of the OBD2 system is confused. ![]() OBD stands for "On Board Diagnostics," and is primarily used to diagnose issues. Tuners just utilize the "reprogramming" feature that the factory/service department uses, to reflash the ECU. The reason why there is a "2" at the end, is because the auto makers standardized the whole OBD system, and its the second major revision. If you are getting the values directly from the ECU, from the diag port using a OBD scanner or a gauge that connects through that port (something like an infometer, from my understanding), and have any of the sensors "clamped" (defined clamping earlier ), those readings will be false, thus useless above a certain value. |
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#18 | |||
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Senior Member
Join Date: Jul 2009
Posts: 4,138
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Quote:
hahahaha. I think I'm that person lol |
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#20 | ||
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Senior Member
Join Date: Aug 2009
Location: Illinois
Posts: 1,636
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Scan gauges showing the ECU output readings through OBDII are only the commanded values and not necessarily what is happening in reality, no matter whether stock, PA flashed or the pass through hardware.
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2010 Red 2.0L track |
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