This procedure is designed for medium-duty trucks that do not normally operate in conditions that make automatic regeneration possible, such as the '08-'10 Isuzu NPR model. The next step is to select DPFE regeneration adpatation. If anyone out there is an Isuzu tech and has training info they would share with me it would be appreciated. Got a Raytek? I wound up replacing the differential pressure sensor because despite it looking ok in idss, on my autel it looked weird. I don't want opinion. So I take out the get the egt hot, I pull over at 600* and try the regen. What I need to know. What requirements for each, what can kick each out. I kick it out and retry a few times. “We see a lot of Cummins motors in our area for maintenance, in addition to heavy trucks. Your Isuzu NPR uses cooling chambers in the engine to cool the engine and prevent its internal components from seizing. Do you have solution? It contains two 64oz bottles of Stiction Eliminator and Diesel Extreme, which provide an incredible solution to helping our customers with a variety of diesel issues,” says Nace. What i did find weird is I have 2 trucks next to each other. 【S pecial Function 】 DPF Regeneration+Oil Reset. To register as a new keeper of your Isuzu, please attend your nearest Isuzu Dealer with a copy of your V5 Registration document as proof of address. The scan tool will display a lower percentage when the engine is at idle with little or no load. When the cooling system is not working properly, the engine may end up overheating. Rich Cunningham. Is the EGR working? The Powertrain Control Module monitors the conditions necessary for diesel particulate filter regeneration. Then it would Regen. I would download it, just in case Scott has to pull it. Hot Shot's Secret. The proper DPF fuel additives contain a cetane improvement to reduce hydrocarbons and particulate matter in your exhaust. Isuzu is currently researching deoxidizing (reduction) type NOx catalysts that employ diesel oil or urea as reduction agents. DPF Regen Case Studies: Many … Continue reading "A Deeper Look into Understanding DPF" I don't know about the "glove test" but I did note the temperature of the valve, and it remained room temperature until commended open. It’s really been incredible for us.”. As an exhaust component continually clogging from the perpetual operation of a diesel truck, this filter is built into a system where it essentially cleans itself of the buildup. Once the exhaust temperature reaches a certain point, for example while driving at high speeds, the built up matter in the DPF turns to ash. Passive regeneration happens automatically. Likely face plugged and allows a rich fuel mixture to burn inside DPF instead of DOC. (FCAR F506 Pro Obd2 Scanner Heavy Duty Truck Car 2 in 1 Automotive Scanner DPF Regeneration Oil Reset ODB OBD 2 Diagnostic Tool. Ones a 2012, ones a 2018. Code Description JAL ISUZU Code Description 1 4 x 2 Code Plant Location 7 Fujisawa Code Description Cab Type W Code Series 4 NPR Code Description B 10001-14000 lbs. “ACTIVE” REGENERATION – WHEN, WHERE, HOW? Do you have any training material explaining the different regen modes? Hand over exhaust , not hot , not working. (Descarga en Español) OVERVIEW The two compounds in diesel exhaust that have the most impact on the environment are NOx and particulate matter, which is more commonly called “Soot”. OBDII Isuzu Code Definitions. That kinda info. What criteria must be met for each stage of regen, and what changes can kick it out? The DPF is an emission filter that reburns Particulate Matter (PM) much like a Catalytic Converter (CC) does. I can take CAC pipes off, put pipes on, open egr, close egr, remove the cooler, nothing seems to change load. Fuels with higher cetane burn more efficiently and completely than those with lower cetane ratings. Extreme heat causes the oil to burn, oxidize and create layers of sludge and deposits. isuzu code p20fe, Isuzu truck N-series fault codes list+ flashing codes , diagnostic trouble codes, DTCs descriptions, blinking codes for Isuzu Trucks free download PDF; Diagnostic flash codes for Isuzu engines 4HK1 and 4JJ1 New bus engines with extremely high temperature exhausts are causing maintenance directors to … This truck came in with a p244b - dpf high differential pressure, p2463 - dpf high soot accumulation, p2459 - dpf regen frequency. That little button right there is a manual DPF regeneration / cleaning button. is in the tool. This temperature increase causes trapped soot particles to burn and be released (through the muffler and tailpipe) as ions of nitrogen and oxygen. Hello, I have a 2012 Isuzu NRR with the 5.2L diesel. Are the NOx heaters working? I have a 2004 Isuzu Forward Truck 6Hl engine but lately it’s been regenerating too often. Have you run the nozzle and SCR tests? All rights reserved. We continue to have great results.”, Kyle Nace mines 0-2% at idle. When touring / towing it does a regen closer to 500klms probably because of higher temps keeping the DPF cleaner for longer. When we don’t hear back, we consider that ‘no news is good news’. He also said that colder temps may have some effect on this, which I wondered about as most of my problems have occurred with temps down in the teens, although it did happen today and temps were in the 30's. Thanks but that's in service into. And with the fragile condition of the DPF itself, the less regens required, the better.”. Hydraulic Brake System Code Description 6 Isuzu 4HK1-TC Steel Tilt Single Cab 71 inch BBC: Bumper to Back of Cab 55698_Sec00_'07 08.2.8 11:40 AM Page 8 “ACTIVE” REGENERATION – WHEN, WHERE, HOW? The Isuzu D-Max automatic transmission fluid temperature warning light comes on for around 3 seconds with the ignition set to 'on' and should then go out. Then it will continue to start and stop regen on its own…, Gotta love this, from Isuzu training... But I am stumped, my local Isuzu "lead tech" is stumped. An active regen cycle is a normal process that takes place as the truck is going down the road. Isuzu Ute Australia released the anticipated seven-seat wagon version of its D-Max ute range in late 2013, with third-row seating, coil-spring rear suspension and rear axle disc brakes. If it didn't pass the tests…, I have a Isuzu with a very similar issue right now. As a result, we distributed a query to members of the World Sweeping Association. Im stumped. Here is the training manual I have, maybe you can find something in there I missed. Check for a cal update? Stiction is the sticky friction caused by byproducts of burnt oil. wtf. Most diesel engines operate more efficiently with a fuel that has a cetane rating of 48 to 50. How to find your Isuzu Workshop or Owners Manual. Isuzu Trucks C & E Series; Isuzu Trucks F-Series Forward; Isuzu Trucks N-series; Below are list of Isuzu Trucks On Board Diagnostic Trouble Codes. I did have a p0172 code set twice, which I cant prove out. I'm by no means an expert. If your organization has had similar issues with the newer Isuzu chassis, and they were not addressed in this article, be sure to let us know so we can see about adding the information.. Log in to Reply. See more information about Savings on DPF Regen Cycles. As I mentioned earlier, this should be in the service information in the tool. hopefully it's just a sub zero thing. And when I look into new products, I try and test these claims and use these products myself, before I ever represent them for my customers. The 2012 Im at 30gps, egr 22% but load is 1%. The KTS will bring up the next screen with particulate filter status, Engine speed, exhaust gas tempreatures and differential pressures. Exclusive isuzu hexapod cab with spacious interior and space for storage behind the seats; Interior also includes ground clearance mirror and overhead console MODEL SPECIFICATIONS Offering eight (8) wheelbases from 152 to 248-in., the diesel-powered FTR can accommodate bodies ranging from 14 to 30 ft. and has a GVWR of 25,950 lbs. That is in service information. A forced regen occurs when soot builds up inside the diesel particulate filter (DPF) to the point that the vehicle is no longer operable. Sits there awhile. NOWWW the question is what input(s) are used to calculate load. Over time, the WorldSweeper office has received a number of reports from parking lot sweeping contractors concerning trouble they were having with the DPF systems on their Isuzu chassis. If the driver slows or stops the truck, the regen will stop. The funny thing is the truck doesn't even go into temp rise. Does that raise the engine load? “With the accuracy in modern computerization, and the rigs that control that whole system, it’s something you want to pay attention to and address relatively soon, before you enter ‘limp mode’ or ‘De-rate’ where the truck will not operate over 20 to 30 mph in some cases.”, If the EGR system is failing, with improper recirculation of the exhaust, the truck runs with a lot more particulate and a lot more soot, therefore also clogging the DPF even more. Here we go again, $$$$$ It does make fire now, but it doesn't always go into the regen. FutureTech meets the demands of today's automotive service professionals and delivers Vehicle Electrification solutions to the automotive aftermarket. i pulled into a rest area at the montana idaho state line. With an additives investment of $200 in two city test trucks, regen cycles were reduced from 36 annually, to 6. It’s used to perform a manual DPF regen on the filter whilst the car / truck is stationary, a bit like a dealer regen but without the fancy laptop / equipment. “You’ll notice a reduction in power during a regen,” notes Nace. I step back and punt a DOC in it. And I noticed turbo boost desired is 15.2@idle and actual is 14.2@idle. The procedure for diagnosing why is in the information. isuzu code p20fe, Isuzu OBD-II Diagnostic Trouble Code (DTC) P0045 Related TSBs Hi, I have a 2012 Isuzu NPR-HD with approx 90k miles and am having issues with DPF regen and Catalytic Converter. Continuously regenerating filters operate at a balance temperature, which can be determined through a laboratory … Guido. Nothing happens. I don't know if these will perform a forced regen while in gear. Isuzu Responds to Reported DPF System Troubles. When oxidization, layers of sludge, carbon and deposits form throughout the engine, additives are an imperative need to clean the parts. I see nothing changing when it…, Hi Jim: Proper Additives Help Reduce DPF Regens You should notice: The REGEN switch will illuminate; NOTE: if the indicator is blinking, check to make sure all the conditions in step 2 are met. See id this helps. After that I was able to heat up and start regen but now it keeps stopping after about 20 minutes with a "70 stop regen" pid. Thanks for the reply. It sits at 200 - regen start for an hour. P0016 CKP & CMP Sensor Signals Out Of Range P0087 Common Rail Pressure Low P0088 Common Rail Pressure High P0089 Fuel Pressure Regulator Performance P0091 Suction Control Valve Voltage Low DO: make sure the engine coolant temperature doesn’t exceed 170 F, 76.6 C. STEP TWO: Once those 4 conditions have been met, push and hold the Engine Re-Gen button for 2 seconds. If a regen is needed while stopped, the driver or a technician must initiate a parked regen. I don't have much in the way of answers or opinions. A computer sensor monitors the DPF and a dashboard indicator light notifies the driver that the regen is taking place, or the DPF is now cleaning. System goes 200 - regen start. 1 1. It’s used to perform a manual DPF regen on the filter whilst the car / truck is stationary, a bit like a dealer regen but without the fancy laptop / equipment. If something happens that indicates a necessity, or to simply avoid the process while driving, we can override the system to regen.”. When they came to us for an oil change, we added our Hot Shot’s Secret additives and within about a week, they saw reductions in their regen cycles and within a month, they had no more issue at all. I take it out and beat it to get the exhaust hot, return and retry, it goes 200 - regen start, 220 - temp rise, then 370-regen active. We’ve used these additives and within 1000 miles we see complete resolve in many of these issues. Call: 1.866.217.0063. Not very…, Hi Jim: He told me there is an injector in the regen chamber that will develope some carbon and thus causing the lights. The Diesel Particulate Filter, commonly referred to as the DPF, can turn into one of the most frustrating parts of maintaining your '08-'10 Isuzu NPR medium-duty truck if it isn't properly taken care of. HTH, “It depends on each individual truck,” says Kyle. “We have a customer that offers a delivery service for rental equipment,” states Kyle. DPF temp should be in the 1000-1100F range. 2018 ISUZU N-SERIES GAS WARRANTY COVERAGE AT A GLANCE Vehicle Warranty Limitations Coverage(Time or Mileage, Whichever Comes First)* Percentage of Dealer’s Normal Charge Paid by Owner Basic 0-3 Years 0-36,000 No Charge No Charge Engine 0-5 Years 0-75,000 No Charge No Charge • Transmission • Drive Axle I subbed for 3 days on Isuzu site and its the same info as on my scan tool, so that was a waste. Change thermostat was 175 % now 191-192 Still to. “An exhaust system is incredibly expensive and susceptible to abuse just like anything else. DPF Regeneration Cycles: An active regen cycle is a normal process that takes place as the truck is going down the road. The cetane booster in Hot Shot’s Secret Diesel Extreme for example, promotes more complete combustion, fewer emissions and therefore fewer DPF regens. I didnt know which values to trust so i swung it. With the proper lubricity returned to the fuel system however, mechanical parts are then more fluid in their operations with less friction. That’s been probably eight months ago and he hasn’t been back. Within a week we all noticed a significant improvement and have ever since then, felt comfortable attaching our name to these products and representing something that IS real, and something that DOES work. Gilead, OH 43338. To those having trouble, what Ive read it seems that the Isuzus are set up to do a regen when the DPF reaches 70% blocked, whereas the Hinos are set up to regen at only 30%, so that if you delay a regen in an Isuzu, the DPF becomes critically blocked and the truck goes into limp home mode. The dealer will be able to change your owner’s details on the Isuzu UK system and this will automatically generate a new Isuzu Assistance card for you if the vehicle is less than 36 months old. It set a p0172 this afternoon. Anyone out there have any ideas? First off when driving highways speeds, it does a regen about every 125-150 miles. The Diesel Particulate Filter (DPF) is an assist in emissions-control included within diesel exhaust systems, to catch the remaining particulates left within the combustion cycle of the diesel engine. And that's the only thing I don't like, Id like to see atmosphere at idle. Specific to the DPF, the correct additives properly clean the engine parts and reduce the amount of particulates clogging the DPF, thereby reducing multiple regen cycles. Unless…, I changed the doc, because in my experience, if the thing is dosing and not making fire, the doc is worn out. He was quite sure of himself. Regeneration may happen one of three ways: passive, active, or forced. Your EGT should get close to 1000, IIRC. Isuzu Responds to Reported DPF System Troubles. Main Menu. 2011 Isuzu NPR red exhaust light light, amber regen light blinking, engine derate light on, no codes, exhaust differential is at 0.02 psi. I have Chang the EGR Valve same problem. and steam stops blowing out … History, in the last year, its gotten NOx1 and 2, DPF, Last time it was here for a EGT temp sensor code, where the egr temp sensor broken off in the exhaust manifold. I'll continue to pick at this thing…, Ok, I got it figured out. Each combustion cycle includes un-burnt components of diesel fuel, carbon and particulates that accumulate into a visible smoke from the exhaust stacks. I have the Isuzu scan tool and I tried to force a regen and after 40 min of trying the tool report Regen … EGT gets to about 800*, it goes BACK to 200-regen start and sits there half an hour, then kicks out and sets a P244C - … I am unable to perform a manual regen. I have a bunch of questions though. It sits at 200 - regen start for an hour. This parameter displays the engine load in percent based on inputs to the ECM from various engine sensors. Im out of ideas, Does this one have the exhaust brake by the DPF? Switching your medium-duty truck into DPF Regen mode allows the DPF to burn off the soot and ash, resulting in a cleaner running filter. Selectable regeneration may be performed when the engine (coolant temperature) and exhaust pipe are warm after transport. I have this 2012 NPR, Im calling out more professionals for assistance, seeing as many of my die hards have left the mothership and came here. the injector). As I said above, it will sit at "200-regen start" forever, then sometime it will start the regen (370-regen active) then a couple times WHILE IN REGEN ACTIVE, will kick out into regen start. THE REGEN TEMPERATURE IS ROUGHLY EQUAL TO EXHAUST SYSTEM TEMPERATURES ON A LONG HARD PULL. It scored a performance boost in May 2017 and upgrades in 2018 and 2019, Allan Whiting from Outback Travel Australia reports. Temps get to about 480* which is too low for the aftertreatment injector to be actuated. NOx, or Nitrogen oxides, is the generic term for a group of highly reactive gases, all of which contain nitrogen and oxygen in varying amounts. Passive DPF regeneration systems are very similar to active DPF regeneration systems but they typically require some type of manual input. “When the engine is being choked down with a clogged filter, the driver may recognize just a lack in performance, throttle response, and power,” says Kyle. My truck is commins isx 450 Too many times regen.
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