Low Boost

[cerberusiam]

ANOTHER 06 with an ECU problem, that seems to be a major failure point in that year. There are several vendors that you can order one from, reconditioned, for around $300 I believe. You send them your VIN and they set it up for you. Let me know and I will try to dig up a contact number.

 

[TCDiesel]

ANOTHER 06 with an ECU problem, that seems to be a major failure point in that year. There are several vendors that you can order one from, reconditioned, for around $300 I believe. You send them your VIN and they set it up for you. Let me know and I will try to dig up a contact number.

I agree, Here's a comment form Wingman over at compD

Try unplugging the fan hub, I had to work on a 05 with weird ECM communication problem and no start condition and it was the electric fan hub that was short.



All pin out was okay on the ECM, we swap another ECM in it and it work, second startup, no start condition.



Swap the original ECM, same thing, start and second startup, no start condition.



After unplugging the fan hub all was okay ... stupid dodge engineer lol

 

[SShafranko]

I took the two ECM plugs out last night and covered the pins with NYK non conducting electric grease and took it for a ride. The truck felt like it found another 50 horsepower somewhere but it still won't boost past 30.



Before i buy the new computer i am going to unplug every single harness plug on the truck, install grease and plug back in. If that doesn't do anything than C i could use that contact info if you could find it.



Todd i only made two changes lately.



#1 New batteries



#2 Switched from Edge to Smarty

 

[TCDiesel]

When did you do the Batteries?

 

[SShafranko]

When did you do the Batteries?

I don't remember, I'm a roofer which = no memory and no spelling ability



I think it was about four to five months ago.

 

[SShafranko]

ANOTHER 06 with an ECU problem, that seems to be a major failure point in that year. There are several vendors that you can order one from, reconditioned, for around $300 I believe. You send them your VIN and they set it up for you. Let me know and I will try to dig up a contact number.

I don't underestand why everyone tells me that the PCM is not repairable but they sell refurbished units. Aren't they repaired? Not really too knowlidgable on these PCM's i guess but there has to be some type of software or component failure which should be repairable... . no?



is there anything to worry about on the refurbished units? If it is not a huge price difference i think i would rather have a new one i think.



Let me know on the vendor info if it is not too much trouble. Thank you very much.



Sasha

 

[TCDiesel]

Same as Me... OK. . When you change the Batteries the connections (all) form the rider side battery to the Drivers side need to be perfect. Nothing to do with your problem do to it being long ago,what happens is the system charges the riders side but all the draw is on the driver side,then the system will over charge itself and either blow the rider side battery or fry something.

 

[SShafranko]

Same as Me... OK. . When you change the Batteries the connections (all) form the rider side battery to the Drivers side need to be perfect. Nothing to do with your problem do to it being long ago,what happens is the system charges the riders side but all the draw is on the driver side,then the system will over charge itself and either blow the rider side battery or fry something.

OK. I'll check that too while i'm disconnecting plugs. Thanks

 

[SShafranko]

If my PCM is no good does anyone know exactly what happens. In other words my truck still runs ok but it seems like it is running at 60% power. Does the PCM go into some type of closed loop or a default fueling table? Anyone know the specifics on this?

 

[TomJohnston]

Is there any chance you had previously installed another programmer like the bullydog? I am finding out that a number of people have had problems with their ecm's, like myself, after removing the bullydog programming from their truck. I didn't notice the problems until I added more mods to my truck and I still wasn't making good boost. Good Luck, Tom J.

 

[SShafranko]

Is there any chance you had previously installed another programmer like the bullydog? I am finding out that a number of people have had problems with their ecm's, like myself, after removing the bullydog programming from their truck. I didn't notice the problems until I added more mods to my truck and I still wasn't making good boost. Good Luck, Tom J.

I had the Edge Module and then the Smarty Programmer. Only two on my truck ever. After i removed Edge and installed Smarty the truck seem to run fine although i didn't have any gauges for a while until i installed the mech. gauges. I installed the Edge Insight for a couple of months just to monitor things and i remember i could not see over 32lbs with it. I thought that the Insight was bad, which eventually stopped working altogether after a couple of months. I don't know if the computer failure was do to any of the electronic devices or just coincidence, but i wish i could find out. My Map sensor did burn out right before i removed the Juice which may have been an indicator of things to come.



But anyway i am ready to pick up a new computer i just don't know where to get it from at this point in time. I left Bob a message this week. Anyone have any idea of a trusted source where i can purchase one this week?

 

[SShafranko]

Is there any chance you had previously installed another programmer like the bullydog? I am finding out that a number of people have had problems with their ecm's, like myself, after removing the bullydog programming from their truck. I didn't notice the problems until I added more mods to my truck and I still wasn't making good boost. Good Luck, Tom J.

Did you replace your ECM? If so where did you purchase it?

 

[TomJohnston]

I haven't replaced mine yet. I have been told that if I get a bullydog programmer and reprogram my truck and then return it to stock it should fix my problem. The reason is because the bullydog deletes your stock programming when it is loaded and then when you remove it the ecm is loaded with a another version of the stock program that is already loaded on the Bullydog. Some have said that this is a South American version that is not copywrited. If your it is more than a firmware issue and your ecm is actually damaged this will not work, but if the firmware is just corrupted it might just work. I am fairly certain that the bullydog corrupted my ecm parameters when it was returned to stock and all I need to do is have a complete reflash or load the non copywrited software from another Bullydog programmer. I am in the process of buying a used BD programmer. If it works I can send it to you to try. Good Luck, Tom J.

 

[cerberusiam]

I haven't replaced mine yet. I have been told that if I get a bullydog programmer and reprogram my truck and then return it to stock it should fix my problem

You can try it but if its a hardware problem which a lot of the 06's seem to develop, it won't work. There are only certain things that thes downloaders can touch in the ECU, corrupting it is a very real problem but thats a hardare\connection problem not the code.



I know of 4 06's that have now swapped ECU's for some totally bizarre and different issues. Whatever the problem was it was fixed with a new ECU.



Twitchy is how I would describe the 06 ECU's. :-laf

 

[SShafranko]

Hey Cerb do you have any info on where I can purchase a new one? Also the dealer reflashed mine and no help it is the same. Thanks folks

 

[daniels]

I had an issue this week with power "falling off" (i. e no boost) above 50% throttle. Ended up being my friggen air filter sucked into my housing a bit and restricted airflow to the turbo enough to cause a MAJOR drop in boost, thus power. I know it's a 'basic" check, but I learned that if we forget the "basics", we quickly be reminded why they are called the "basics".

 

[cerberusiam]

Hey Cerb do you have any info on where I can purchase a new one? Also the dealer reflashed mine and no help it is the same. Thanks folks

There is a place in Jacksonville FL a buddy used to get his swapped when it started doing weird stuff. I don't remember the name so will check with him and get it. I need to check and see if it cured his problems also. His was pooched to the point the dealer scan tool would not read half the stuff it needed and the injector circuits were constantly throwing codes and putting the truck into limp mode.



Someone else we both know had one shut down one bank on him when an injector went bad and they never got it to work until they swapped the ECU. There is some weirtd JuJu with these 06's when the ECU sees things it doesn't like.

 

[SShafranko]

Update... ... .



I installed a new ECM last week. When i first put it in truck ran awesome i thought it was fixed but then noticed that i was still only boosting to 36lbs this time. I got my bottom end and mid back for a little while. After two days of driving i'm back to square one. Can't boost past 32-34lbs, EGT's climb like an animal up to 1400, and just about every time i start the truck it runs differently. I started it this morning and could not get it to boost past 10 lbs. with my trailer hooked. Once i reached my shop unloaded tools re-started truck and took off boooom right to 32 lbs. WTF!!!



I noticed two very strange things which may help in finding this issue.



1) My tach needle at idle moves up and down from 600 to 650 to 750 back to 600, while the truck is idling but the actual idle is not moving it idles smoothly at 750 according to scanner.



2) When i load Smarty SW's and it gets to around 85% completion, the fuel pump starts pulsating and my pressure gauge bounces up and down from 7psi to 15 psi up until it is done loading the SW.



I loaded an SW on two other trucks and the fuel pump stays on and runs smoothly at the same rate throughout the entire down load. This issue may have started after i installed the AD i'm really not sure because i installed a lot of things lately within weeks apart of each other such as: Turbo, AD II, Power inverter 2000w wired to the baterry, MP8, i'm sure i'm missing something else but u get the point.



I have trace my wiring harness and check all connections. I think thats my next step.



It seems like whatever is causing this issue is burning out the ECM and i think it did it to the new one too. Hopefuly not maybe its just screwing with it and once i find the source the ECM will go back to normal, keeping my fingers crossed.....



Sasha

 

[cerberusiam]

Couple of thoughts, my OE fuel pump pulses like you describe on the last part of the download also. Don't think thats an issue.



Can you crank say 50% into the MP8 and get your boost back? It won't hurt to test it at that, just don't drive it long term.



Unwire the power inverter and see if that makes a difference. Theoretically it should not but these system are unltra sensitive to ANY voltage\amp draws on the system and will totally wack the way they run.



You are having some intermittent glitches somewhere from the sounds of it and those are a total pain to track down.

 

[SShafranko]

I don't have the Smarty loaded right now because i am scared of blowing something up. I am running with the MP8 on 0. When i punch it i get around 29-30 psi and 1250 EGT. There is no bottom end or mid, all top end like a 2 stroke dirt bike powerband.



If a turn the MP8 up 50% and punch it i get to 32-34psi, 1400 EGT and it cuts out. #@$%!