Boost Gauge for Turbo?

[AnnDee4444]

Wish there was a way to enable this page...

In the meantime, this app is supposed to display OBDII data through Android Auto: https://play.google.com/store/apps/details?id=com.ecm.dashobd&hl=en_US&gl=US

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[ALeeL]

It's not that the engine shuts itself off.

It's a derate scenario.

Drive on the freeway and pull off for fuel, shutting off the engine. Start it back up within a few minutes and get back on the highway immediately. The engine derates while you're on the on ramp.

Cruising on the freeway you maintain a fair amount of continouos boost. So you have some heat in the turbo and exhaust. If you shut down the engine without a cool down you heat soak a bit. When you fire it back up within a couple of minutes that heat soak triggers the derate. It's temporary. Let it idle for a couple of minutes and you're fine.

The important part is that the temps which trigger the derate are not shown on the dash, nor is any notification shown that you are being derated. You just lose power and the dash shows normal. That tends to be somewhat disconcerting to most people.

If this were the case, then it would have happened to me multiple times this summer. I keep my fifth wheel at the coast which is two and a half hours away from my house. I generally keep the Jeep down there and just drive the car back and forth, but I did bring it back several times this summer. All of these times were in over 100F outside temps here in Texas.

The road coming back is also extremally windy and you are fighting against it the whole way. It is so windy that there are wind mills for a third of the drive. I have stopped multiple times after doing 75-80 mph for a bio or fuel break and immediately went on my way without any derate or loss of power. I feel that this would be way more common if it was derating because of this. Unless, the both of you have the coolant hose going to your turbo clogged keeping it from cooling down and others don't.

I will also say, that these turbos can survive at well over 1,200F for extended periods of time unless Jeep/FCA makes theirs with cheap metal.

 

[grimmjeeper]

If this were the case, then it would have happened to me multiple times this summer. I keep my fifth wheel at the coast which is two and a half hours away from my house. I generally keep the Jeep down there and just drive the car back and forth, but I did bring it back several times this summer. All of these times were on over 100F outside temps here in Texas.

The road coming back is also extremally windy and you are fighting against it the whole way. It is so windy that there are wind mills for a third of the drive. I have stopped multiple times after doing 75-80 mph for a bio or fuel break and immediately went on my way without any derate or loss of power. I feel that this would be way more common if it was derating because of this. Unless, the both of you have the coolant hose going to your turbo clogged keeping it from cooling down and others don't.

I will also say, that these turbos can survive at well over 1,200F for extended periods of time unless Jeep/FCA makes theirs with cheap metal.

Just because you haven't seen it doesn't mean that it doesn't happen.

It doesn't happen often. But it does happen whether you have personally experienced it or not.

 

[ALeeL]

Just because you haven't seen it doesn't mean that it doesn't happen.

It doesn't happen often. But it does happen whether you have personally experienced it or not.

But that doesn't make sense if Jeep made a perimeter that the engine would derate at a certain turbo temp, and I could not replicate it even in harsher conditions with higher ambient temps and higher load. Generally when a derate is due to reaching a certain perimeter like a specific temp that a lot of people can attain, then it is easily replicated every time with a lot of people. However, when something is not working as it should, then it is not easily replicated by a lot of people and only happens to a small group or at inconsistent times.

I am not saying it didn't happen, I am just I don't agree on the cause since it would have easily happen to me at over 100F outside temps, doing 75-80 mph, and high winds.

 

[grimmjeeper]

But that doesn't make sense if Jeep made a perimeter that the engine would derate at a certain turbo temp, and I could not replicate it even in harsher conditions with higher ambient temps and higher load. Generally when a derate is due to reaching a certain perimeter like a specific temp that a lot of people can attain, then it is easily replicated every time with a lot of people. However, when something is not working as it should, then it is not easily replicated by a lot of people and only happens to a small group or at inconsistent times.

I am not saying it didn't happen, I am just I don't agree on the cause since it would have easily happen to me at over 100F outside temps, doing 75-80 mph, and high winds.

I bet you mean parameter.

Thing is, all you have to do is let the engine idle for just a little bit for the temps to drop. Even something as simple as crossing over the interstate to get to the gas station on the other side and cross back before you get back on the interstate is enough.

The two times it happened to me I was on a US highway and I pulled off to the gas station right next to the road and got right back on the highway immediately after filling up, trying to get right back up to 70 MPH. So it's likely you can duplicate the scenario if you put some effort into it. It's just that no one has bothered to do it yet.

But just because it doesn't happen more consistently doesn't mean the analysis isnt accurate.

If you normally idle your diesel before you shut it down, you drop the temps enough for the system to not derate. Since I do that all the time now, I don't see this problem any more.

And it may not be the turbo temp itself. It may be one of the temps in the emissions system. Could be something else. We don't know for sure because the Jeep doesn't display anything when it does this. And it's trivially easy to get it to stop. Enough that it's likely to clear before you even have a chance to figure out that it has happened.

I agree that it should give us an alert when it derates. That would give us more useful information to diagnose the problem. But they don't. So we have to go off the observed behavior of those who have experienced it.

It doesn't have to make sense to you for us to diagnose and understand the problem.

 

[AC77]

Just got my ecodiesel. Love it. Odd that jeep didn't put a boost gauge anywhere. Best aftermarket solution?

derringer tuner, has all gauges on it, and boost of course

 

[SargeDiesel]

I have the scan gauge3, works great

I can see what's on your current screen, but the scangauge III has 3 pages... right ? What else do you find important to monitor ?

Getting ready to install mine

Thanks

 

[GtX]

I can see what's on your current screen, but the scangauge III has 3 pages... right ? What else do you find important to monitor ?

Getting ready to install mine

Thanks

Yes. 3. I upgraded from a II and only use the first page. I do like being able to set an alarm for Regen and high oil temp.

 

[SargeDiesel]

Yes. 3. I upgraded from a II and only use the first page. I do like being able to set an alarm for Regen and high oil temp.

Good deal.... I've watched a few videos, but everyones application is different.

The instructions are a little generic, but I understand why. Looks like one of those deals where you just have to install it and start messing around with it.

My issue is, this is my first diesel, so I know there are some important things to monitor.

Maybe someone can help me compile a list... not necessarily inorder if importance... but a list of what I should be looking at. I think I know a few, plus the ones that you mentioned.

1. REGEN
2. OIL TEMP
3. TRANS TEMP
4. COOLANT TEMP
5. PRE-TURBO TEMP
6. POST TURBO TEMP
7. DEF TANK LEVEL
8. BOOST PRESSURE
9. SOOT LEVEL

That would fill the 1st page, there are two more available... suggestions ?
Thanks

 

[JLUR Farout]

I just drive it and wait for the next engine oil leak to start.

 

[miner3649er]

I know Scan gauge II can show turbo temperature and I think the Banks system will too, but I don't like having an extra box to bounce around especially off road. Is there are system that will show you the turbo temp on the dash, maybe in offroad mode or somewhere else? Also see link below for other discussions on this topic.

https://www.jlwranglerforums.com/forum/forums/3-0l-6-cyl-turbo-ecodiesel-engine-exhaust.26/

 

[ALeeL]

I bet you mean parameter.

Thing is, all you have to do is let the engine idle for just a little bit for the temps to drop. Even something as simple as crossing over the interstate to get to the gas station on the other side and cross back before you get back on the interstate is enough.

The two times it happened to me I was on a US highway and I pulled off to the gas station right next to the road and got right back on the highway immediately after filling up, trying to get right back up to 70 MPH. So it's likely you can duplicate the scenario if you put some effort into it. It's just that no one has bothered to do it yet.

But just because it doesn't happen more consistently doesn't mean the analysis isnt accurate.

If you normally idle your diesel before you shut it down, you drop the temps enough for the system to not derate. Since I do that all the time now, I don't see this problem any more.

And it may not be the turbo temp itself. It may be one of the temps in the emissions system. Could be something else. We don't know for sure because the Jeep doesn't display anything when it does this. And it's trivially easy to get it to stop. Enough that it's likely to clear before you even have a chance to figure out that it has happened.

I agree that it should give us an alert when it derates. That would give us more useful information to diagnose the problem. But they don't. So we have to go off the observed behavior of those who have experienced it.

It doesn't have to make sense to you for us to diagnose and understand the problem.

I have done worse than that. As stated before, I have traveled to the coast in the Jeep many times this summer in temps above 105F. Speed limit is 75 mph, but I generally do 5 over. My six year old's bladder has me stopping one to two times on this trip, and both times are stops immediately off the highway, turn the engine off for a few minutes while I take him inside, then turn the engine back on and go.

I would think that if it were something that were easily replicated, then harsher conditions would replicate it. It does not make sense for Jeep to program the engine to shut down because you did not idle long enough before shutting down. If anything, they would program it to stay on and keeping you from shutting down. Shutting the engine down is the exact opposite of what you want to do if you need to do a cool down period.

I think we are in agreement on things, just looking at it a different way. I am not saying that we should not have the gauges, just saying that the derate it likely not due to turbo temps or not performing a long enough cool down period and likely due to emissions system or some other temp.

 

[Tpsillos]

I’ve enjoy the clean look of the banks I-dash. Only thing I’ve ever owned from them but it has what I need.

 

[BAKNBLK]

Jumping in here but can the Tazer show pre turbo egt?

 

[AC77]

Why didn’t jeep give us more line of sight into our vehicle…but yea tazer could have done turbo temps s as well it would seem

So other aftermarket manufacturers can also make $ and open doors for a lot more gadgets

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