Mopar1973Man

Remember I'm not using a IAT sensor... Mine is locked to 143*F (2.2K Ohm resistor)So I tend to think the APPS sensor is more the cause... Any error codes?

No better than petroluem based... But can't be used in winter climate because all synthetics don't have pariffin wax in the oil so there ho NO PPD additive package. (Pour Point Depressants). So I tend to say away from semi-synthetics and full synthetics because of the extremely cold temps I want something that will aid in keeping the fuel flowing... So I typically go back to petroluem based snowmobile oil that has a pour point of at least -50*F... So far I've manage to get to -25*F with no other fuel additive for gelling...

Just for the sake of information value... Russ your trailer is... 28WTB TT Transport by Tahoe http://www.tahoe-rv.com/TahoeTransport-specs.htm [TABLE=width: 50%, align: center] [TR] [TD]GVWR[/TD] [TD]12,500#[/TD] [/TR] [TR] [TD]CCC[/TD] [TD]3,480#[/TD] [/TR] [TR] [TD]Hitch Weight[/TD] [TD]1,140#[/TD] [/TR] [TR] [TD][/TD] [TD][/TD] [/TR] [TR] [TD]Fresh Water [/TD] [TD]100 Galons[/TD] [/TR] [TR] [TD]Grey Water[/TD] [TD]45 Gallons[/TD] [/TR] [TR] [TD]Black Water[/TD] [TD]45 Gallons[/TD] [/TR] [/TABLE]

I would validate the error codes by clear the codes now and then go for a ride and check again if the code returns after a 10-15 mile ride then more than likely the code is true. If not the code was a random glitch which sometimes occurs.As for the P0216 its not a good sign but you can buy yourself some time to get funds put together for replacing the VP44. Eventually it will fail or performance will get so poor that you'll be force to replace it.As for the trans shifting problem you might trade your horn relay and the trans relay and see if that helps... But there should of been a code for TQ lockup or something typically.

No... It will pump pulses of fuel flushing the fitting out but no its not going to pump gallons but that all depends on how long you crank on it. :shrug:I know the pump is rated is cc's of stoke... Don't ask how much but its enough to spit fuel though...

Ekkk... Bad injector copper shim or maybe a cracked head.The bad copper shim would allow the compression gases to be forced into the return rail to the fuel tank pressurizing the fuel tank. I've heard of a person with a cracked head and only cracked between the combustion chamber ot the return rail.

Well if it was me I would just cover the port with duct tape or simular for now. But once it was installed on a new engine I would just leave the high pressure lines off and roll the engine allowing the diesel fuel to flush the pump out. Being there is no way of flushing it unless its tied to the ECM for fire signal.

After your done send it my way...

What funny about fuel pressure the early years of CR engine specified 9.5 PSI for MIN PSI then the whole pressure tables where remove later on. As for my low pressure light is a Cummins Switch which is set at 3.5 PSI way too low for my truck being MIN pressure is 10 PSI and I typically keep it above 14 PSI. http://mopar.mopar1973man.com/cummins/3rdgen/fuel-system/fuel-system.htm But after reading about the CP3 pump a bit I found its also got a overflow valve just like the VP44 got. But the problem is I can't find any specs on this overflow valve and when it opens. Like I'm learning your fuel pressure should be just high enough all the time to keep the overflow open. This would keep the CP3 happy with extra fuel flow lubing and cooling as well as the VP44 style pumps do. But I know on Chevy Duramax truck there have no lift pump before the CP3 so Fuel gelling will show up as a fuel pressure drop of about 2-3 PSI lower than typical and may or may not improve...

Here is the best I can do... Its a bit more to the right center of the head will be a banjo bolt... As for pressure there really isn't much... http-~~-//www.youtube.com/watch?v=YREpPrMxkHU Remember this is all 24V information its pretty close the same but little differences...

Yes. I've got mine enabled borrowing Bob Wagner's Smarty...

There is a hollow rail through the head that exits at the back of the head... On the 24V it tees into the VP44 return line and return to the fuel tank.

Yes... Run a program of your choice... Take a ride... Return to stock and your done...

Your injector are very simular to mine except mine don't have the solenoid to control firing. You can see the extra hole at the top of the injector that is the bled hole that the excess fuel is return to the return rail. So yes the injector is lubed and cooled by the fuel and then return to the tank. As the CR engines they are a bit different on the top half of the injector but basically work the same.

Updates don't need to be done the high idle already exist in the ECM and you must turn it ON...Repair Procedure: 1. Log onto the MDS2 (Mopar Diagnostic System). 2. Connect the MDS2 and DRBIII to the vehicle and switch the ignition key to"ON". NOTE: AUTO CONNECTION WILL OCCUR ONCE THE DRB III, MDS2, AND VEHICLE ESTABLISH COMMUNICATION. THE "CANNOT READ VIN FROM DRB III" MESSAGE (ON THE MDS2) WILL BE REPLACED BY THE VEHICLE VIN. PRESS THE "OK" BUTTON ON THE MDS2 TO REQUEST A L4DS2 SESSION FOR THE VEHICLE VIN INDICATED. PRESS THE "OK"BUTTON WHEN ASKED TO BEGIN SESSION. 3. Push the FLASH tab on the MDS2. 4. Select READ PART NUMBERS FROM VEHICLE and click SHOW UPDATES on the MDS2. NOTE: A MESSAGE MAY APPEAR (AFTER STEP 3 OR 4) THAT INDICATES NO UPDATES ARE AVAILABLE. IF THIS OCCURS, MAKE SURE YOUR DIAGNOSTIC EQUIPMENT IS OPERATING AT THE LATEST SOFTWARE LEVEL AS LISTED EARLIER IN THIS BULLETIN. IF THE LATEST SOFTWARE IS INSTALLED, AND NO UPDATES ARE AVAILABLE ANOTHER VEHICLE CONDITION EXISTS THAT WILL REQUIRE FURTHER INVESTIGATION. 5. Select the new software part number with the light pen and click UPDATE CONTROLLER SOFTWARE. 6. The MDS2 and DRB III will prompt for any operator action needed during the remainder of the reprogramming process. NOTE: DUE TO THE PCM REPROGRAMMING PROCEDURE, A DTC MAY BE SET IN OTHER MODULES (EATX, BCM, MIC, SKIM, ETC.) WITHIN THE VEHICLE, IF SO EQUIPPED. SOME DTC'S MAY CAUSE THE MIL TO ILLUMINATE. ALL DTC'S RELATE TO A LOSS OF COMMUNICATIONS WITH THE MODULE THAT IS BEING REPROGRAMMED. CHECK ALL MODULES, RECORD THE FAULTS, AND ERASE THESE FAULTS PRIOR TO RETURNING THE VEHICLE TO THE CUSTOMER. ERASE ANY FAULTS IN THE PCM ONLY AFTER ALL OTHER MODULES HAVE HAD THEIR FAULTS ERASED. NOTE: ONCE THE VEHICLE HAS BEEN REPROGRAMMED TO THE PROPER SOFTWARE LEVEL, YOU MUST USE THE DRB III TO ENABLE THE 3 CYLINDER IDLE FEATURE. TO DO SO FOLLOW THE INSTRUCTIONS BELOW. 7. Connect the DRB III to the vehicle without connecting to MDS2 and follow the menu structures it appears below. 8. MAIN MENU - 1998 - 2002 DIAGNOSTICS 9. 1998 - 2002 DIAGNOSTICS - ALL (EXCEPT BELOW) 10. SELECT SYSTEM - 1 ENGINE 11. CONTROLLER TYPE - 1 CUMMINS (ECM/ENGINE) 12. SELECT FUNCTION - 1 MISCELLANEOUS (Misc. is on second page) 13. 3.3 CYLINDER IDLE - Follow the instructions The DRB III will indicate whether the feature is enabled or disabled. 14. Push 1 to Enable, 2 to Disable. 15. You are instructed to cycle the ignition to complete the repair. 16. Press Page Back to Exit. NOTE: THE FOLLOWING STEPS ARE REQUIRED BY LAW. 17. Type the necessary information on the "Authorized Software Update Label" p/n 04669020 (Fig. 1). Attach the label to the PCM and cover the label with the clear plastic overlay.

Ahh... Ok a member to voice... What I told mrtowman4u is it sound like something happened with a injector that possibly hung a pintle needle open or damaged the nozzle of the injector for it to just be blowing black smoke.

The drain manifold takes the remaining pressure out of the injector and bleeds it back to the tank in between firing.

Apparently the high idle is still disabled.

I've got 2 Dodge's (1996 & 2002) both have good dashes no cracks... Am I just lucky or what I don't know but I've pull the dash in both truck and the plastics are good and strong and no signs of cracking...

I'd say you guy rather well... No back to the thread topic...

But even with my straight pipe 3" it still very manageable with Edge Comp and the RV275 Injectors which puts me right there with a CR Engine truck...

I would repair any cracked fuel lines either supply or return.

You might head over to http://www.rvforum.net/SMF_forum/index.php and talk to Gary he's a guru of 5th wheels and trailers... Same here... I've got a bumper pull... Well at least I gave a tidbit of information but I'll got sit in the corner with Dripley...

Here is the write up... http://articles.mopar1973man.com/index.php?option=com_content&view=article&id=68:hfrr-testing-of-common-diesel-fuel-additives&catid=36&Itemid=115 Personally after trying a few to correct a misfire issues and then after soaking a injector over night in straight solvent and seeing it did nothing to correct the problem. I can tell you that if your looking to clean a fuel system you have to take everything apart and clean it by hand. So as for keeping it clean is all about good CLEAN fuel and good fuel filters (<10 Micron) As for keeping things lubed up I would look at the list (above link) and consider the options. As for cetane booster just remember everytime you increase cetane you reduce the BTU's of the fuel... Just remember standard gasoline is right at 116K Btu's

After all the time of hearing VP44 failure and how bad VP44 pump are... I now know what every VP44 rebuilder is fighting every day. Where VP44 owners are cutting corners on fuel quality and filters and feed it dirty nasty fuel from gawd knows where.Why is that you here the same guy bragging about AMSOil in every hole but feed the fuel tank with worse garbage he can find? Why is this? Then blame the VP44 for being a $hitty pump. :rolleyes:I'll admit there is a few actual short life span pump that failed premature but not as often as the big forums as pushing it...