current above normal or shorted to ground, active regeneration inhibited due to low exhaust temperature, ATD filter temperature sensor voltage above normal, ATD filter temperature sensor voltage below normal, ATD differntial pressure, high filter restriction, ATD differential pressure voltage above normal, ATD differential pressure voltage below normal, ATD differential pressure , filter restricted, ATD exhaust gas temperature 2 data drifted high, ATD exhaust gas temperature 2 voltage above normal, ATD exhaust gas temperature 2 voltage below normal, aftertreatment fuel pressure sensor voltage above normal, aftertreatment fuel pressure sensor voltage below normal. C15 ACERT MXS Cat boost pressure, no load. I am happy to assist. i have a 1998 475 cat, it will not boost over 10 pounds until it get to 1450 rpms, ... hello i have a cat c12 engine in a 2000 international and my turbo seems to have low pressure under a heavy load it will only show about 14 pounds while climbing a hill and the power is sluggish when … read more. Login with username, password and session length. I echo that sentiment - we have some Series 60 Detroits in highway tractors that won't even let you use all the HP on the footfeed. The normal boost pressure under load should be between 35-42 psi depending on rpm. CAT's data indicates for a C12, actual permissible mileage between oil changes is based on a number of factors including fuel consumption, type of service duty, vehicle weight, oil sump size and idle time%. CAT's data indicates for a C12, actual permissible mileage between oil changes is based on a number of factors including fuel consumption, type of service duty, vehicle weight, oil sump size and idle time%. One thing about Cat engine oil pressure it run very low and the build of all Cat engines the oil system is flooded with Use Cat ET to override the wastegate to 0 percent. You may >have about as much control. Did not state engine hp so I used 445 hp. Thanks for the info. I try to do mine yearly or at 10K miles whichever comes first. The reason I ask is that it is time to replace the original cat c12 turbo, and I'm look … The ECM calculates the engine exhaust gas temperature, by using the readings of the Inlet Manifold Temperature Sensor and the Atmospheric Pressure Sensor (along with a rpm factor). Cat® C12 Diesel Marine Propulsion Engines, with ratings of 340-490 bhp (254-366 bkW) at 1800-2300 rpm, meet IMO II emission standards with the exception of the 497 mhp (490 bhp) rating at 2300 rpm which meets IMO I emissions standards. Looking for more information? All Cat Diesel Truck engines have Fuel Transfer Pumps, it is good idea to know how they work and how to change them. Customer complains that truck goes into limp mo … read more. Customer reply replied 6 years ago. Fuel pressure is normally 70-90 psi. Discussion in 'Trucks [ Eighteen Wheelers ]' started by ingedavi, Apr 27, 2013. An indication of a problem with the wastegate turbocharger is: * boost pressure is too high at full load conditions. The big cats can be expensive quick if the maintainence is neglected. However, normal oil pressure is around 50 psi. The C12.9 marine propulsion engine is ideal for high performance marine applications including yachts, fishing vessels, military vessels, governmental vessels and various other high performance marine applications. Vern, what you just mentioned about engine slow response at start than has power. It goes up hills fine when going starts above 40 milesper hour. Jan 1, 2008 Eau Claire, WI 0. Around 1500 or below around 35. we had a low boost code before we changed the turbo. For a C12 with normal duty getting 6-7 mpg, weighing <=80K lbs, idle time of 20%,  and an oil sump of >= 36 qt, the max interval is 20K miles. Hi, have info off Cat SIS for the C-12 oil pressure. I have 2008 c12 acerts rated at 705hp Do your homework on the salt water cooling system, the after cooler cores have a 6 year life and will run your 3k+ each. Of course, boost pressure is a function of engine load. If the air is denser, that is, if barometric pressure is higher and/or temperature lower, boost pressure will be higher than specified. Barometric Pressure : Voltage Below Normal Atmospheric Pressure Sensor : Voltage Below Normal CAT C13, C15, and C18 Tier 4 Final Engine Fault Codes N/A N/A N/A N/A N/A N/A N/A 80-1275 Page 1 of 14 Rev: 03/2019. Get a closer look at the Cat® C12.9 high performance engine as Hashim Marzuq from Caterpillar Marine Group discusses key features and benefits in this walkaround. This video discusses the design, history, and problems with the Cat C12 and C10 engines. It sounds like low, Jerry, here is some info. Good luck but now the code is gone and has not reappeared. Are these 700HP C-12? 102-03 Boost Pressure Sensor Open Circuit 25 253-02 Check Customer or System Parameters 56 102-04 Boost Pressure Sensor Short Circuit 25 253-11 Check Transmission Customer Parameters 56 105-00 High Intake Manifold Temp Warning 64 253-14 Truck Manufacturer Parameter Not Programmed 56 Caterpillar Engine Expert. If a High Boost Pressure Event occurs, the wastegate is closing properly. Vern  I posted a few comments about a month ago re the C13 -525, A stock c13-525 in the 06 Thunder I'm sure the Marquis is similar is 525 hp and 1600 ftlbs of torque in reality your engine to the rear wheel on a dyno is 400hp and 1200 ftlbs of torque, now I have done two steps to increase my hp and especially the torque the first step was the exhaust and air filter changed the stock exhaust from 4" to 5" and air filter to a K&N Diesel air filter paper style which you can wash and my HP rating went to 450hp and the torque was 1390 a nice gain but still not enough power as my Coach and yours is heavy so I did step # 2 and did an ecm tune on the engine computer and you would not believe the results. Cat Man. Plus the heat exchanger, fuel cooler, trans cooler cleaning. The plunger must close against the seat at a pressure of 27.5 kPa (4 psi). Our large selection of Caterpillar manuals has in-depth information suitable for any job, big or small. The only way you get max HP is with the cruise engaged. When going downhill, coasting in gear at 1200 rpm I'm having a boost reading of 5 psi and the gauge will twitch one time. Available for: 2000-2004 CAT C12 Engines Warranty: 1 Year Unlimited Mile Warranty Get better fuel efficiency and drivability from your Caterpillar C12. 10,221 satisfied customers. Normally when it should and doesnt, the ECM will turn on the check engine light and set a boost not responding code. Cat Man. At high RPM's the fuel pressure is around 85-90 psi. If a Cat Diesel Engine doesn't have good fuel pressure it can cause a lot of performance related issues. Cat c12 2ks 2002 turbo options. 53 18. After 15 seconds, a High Boost Pressure Event should result. The amount of boost relative to engine speed and load depends upon the application, with the specification given for 28.8 in./Hg dry barometric pressure, 77°F (25°C) ambient temperature, and 35 API gravity fuel. Cat Engine Expert. When the engine is stopped, the absence of boost pressure allows the plunger to rise to the open position, which allows condensation from the aftercooler to drain out. http://prevostcommunity.com/PDF/Motor%20Home%20Fuel%20economy.pdf, Quote from: Dave Atherton on April 16, 2015, 04:57:55 AM. Ask Your Own Medium and Heavy Trucks Question. Vocational, Technical or Trade Scho. At high rpm it would be around 42. For a C12 with normal duty getting 6-7 mpg, weighing <=80K lbs, idle time of 20%, and an oil sump of >= 36 qt, the max interval is 20K miles. Boost pressure. Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. Check Cat ET for the following logged Diagnostic Codes 190-02 and 190-08. The fuel pressure range o the C12 engine is 70 to 90 psi. Caterpillar Engine, Temperature and Pressure Sensor. This is the complete list of Caterpillar fault codes. 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