At high rpm it would be around 42. Customer reply replied 6 years ago. The only way you get max HP is with the cruise engaged. 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. If a High Boost Pressure Event occurs, the wastegate is closing properly. 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. wrote regarding boost gauges on electronic Cats: >Sort of seems as useful as a pressure gauge on your refrigerator. Cat Man. Designed to … Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. Vern, may I suggest before going to a great deal of cost on your engine. All Cat Diesel Truck engines have Fuel Transfer Pumps, it is good idea to know how they work and how to change them. Around 1500 or below around 35. Caterpillar Engine Expert. Cat c12 2ks 2002 turbo options. Caterpillar Engine, Temperature and Pressure Sensor. I have checked with a cat shop and tbey said to put a meter on the air filter side as it could be a leak in the turbo hoses. The fuel pressure range o the C12 engine is 70 to 90 psi. Vocational, Technical or Trade Scho. When the calculated engine exhaust gas temperature … Perform a torque converter stall test. Looking for more information? 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%. As the boost pressure increases against the diaphragm in canister (2), the wastegate valve is opened and the rpm of the turbocharger is limited by bypassing a portion of the exhaust gases past the turbine wheel of the turbocharger. The correct oil pressure for this engine is high side 47.7 psi and the low side is 13.6 psi. Customer complains that truck goes into limp mo … read more. 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. I will see if beaver in bend can check these two items or if it is just the added weight. One thing about Cat engine oil pressure it run very low and the build of all Cat engines the oil system is flooded with Exhaust Gas Temperature Derate often occurs if these Cat bridge engines are put under prolong heavy loads and/or climbing steep grades. Please reply back if you need more help or have more questions. At idle or low RPM's the fuel pressure is around 70-75. 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. http://prevostcommunity.com/PDF/Motor%20Home%20Fuel%20economy.pdf, Quote from: Dave Atherton on April 16, 2015, 04:57:55 AM. Cat Engine Expert. Good luck The big cats can be expensive quick if the maintainence is neglected. Jan 1, 2008 Eau Claire, WI 0. The Big Boss Turbo design has been created to withstand the toughest heat cycle conditions adding reliability with performance and efficiency. Vocational, Technical or Trade Scho. The turbocharger boost pressure forces plunger (4) to move down to valve seat (5). 10,221 satisfied customers. This video discusses the design, history, and problems with the Cat C12 and C10 engines. Boost pressure. Plus the heat exchanger, fuel cooler, trans cooler cleaning. 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. The fuel check pressure seems like a great idea. 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. C15 ACERT MXS Cat boost pressure, no load. 53 18. ATD exhaust gas temperature 2 voltage below normal: 332: 3: aftertreatment fuel pressure control: aftertreatment fuel pressure sensor voltage above normal: 332: 4: aftertreatment fuel pressure control: aftertreatment fuel pressure sensor voltage below normal: 332: 11: aftertreatment fuel pressure control: aftertreatment fuel presuure high: 333: 5 You may >have about as much control. but now the code is gone and has not reappeared. Here is something else to think about – the older 425-B Cat engine, which was mechanical, had aluminum pistons, did not smoke on cold start-ups, achieved good fuel mileage, made great power, started easily, had long engine life, and only had one wire going to the engine to run it, produced 19.3 horsepower per pound of turbo boost! At high RPM's the fuel pressure is around 85-90 psi. Our large selection of Caterpillar manuals has in-depth information suitable for any job, big or small. If a Cat Diesel Engine doesn't have good fuel pressure it can cause a lot of performance related issues. Page 1 of 2 1 2 Next > Apr 27, 2013 #1. ingedavi Light Load Member. 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%. Login with username, password and session length. Check Cat ET for the following logged Diagnostic Codes 190-02 and 190-08. 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. Vern, what you just mentioned about engine slow response at start than has power. However, normal oil pressure is around 50 psi. An indication of a problem with the wastegate turbocharger is: * boost pressure is too high at full load conditions. we had a low boost code before we changed the turbo. It sounds like low, Jerry, here is some info. 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. The plunger must close against the seat at a pressure of 27.5 kPa (4 psi). After 15 seconds, a High Boost Pressure Event should result. Are these 700HP C-12? I have a 475hp MXS. I try to do mine yearly or at 10K miles whichever comes first. 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). 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. To be honest, the desired does not always match the actual boost pressure. Hi, have info off Cat SIS for the C-12 oil pressure. Available for: 2000-2004 CAT C12 Engines Warranty: 1 Year Unlimited Mile Warranty Get better fuel efficiency and drivability from your Caterpillar C12. 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. This is the complete list of Caterpillar fault codes. The reason I ask is that it is time to replace the original cat c12 turbo, and I'm look … Use Cat ET to override the wastegate to 0 percent. I am happy to assist. If the air is denser, that is, if barometric pressure is higher and/or temperature lower, boost pressure will be higher than specified. Thanks for the info. Sensors for Cat® Equipment including Pressure, Temperature, Fuel Level, Speed, Position, and Oxygen. Normally when it should and doesnt, the ECM will turn on the check engine light and set a boost not responding code. I did mention. Of course, boost pressure is a function of engine load. 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. to look for ( low power/poor response to foot feed. ) 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. The Cat ® C18 Industrial Diesel Engine is offered in ratings ranging from 429-522 bkW (575-700 bhp)@ 1800-1900 rpm. It goes up hills fine when going starts above 40 milesper hour. I have a C7 cat [kal85083] with a code 102-3 boost pressure high[25].I used a lap top with cat soft ware to retrieve this code.It is not an active code. Ask Your Own Medium and Heavy Trucks Question. The normal boost pressure under load should be between 35-42 psi depending on rpm. Fuel pressure is normally 70-90 psi. 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. Your Cat dealer can program some of the values in the monitoring system to different trip points if you´d like. 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. 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 Cat Man. I use a visible boost gauge, can I use a Borg-Warner turbo without a waste gate. Discussion in 'Trucks [ Eighteen Wheelers ]' started by ingedavi, Apr 27, 2013. Did not state engine hp so I used 445 hp. Low RPM 's the fuel pressure it can cause a lot of performance related issues 1 2 Next > 27! In ratings ranging from 429-522 bkW ( 575-700 bhp ) @ 1800-1900.... Rpm 's the fuel pressure is around 70-75 about engine slow response at start than has power into mo... Is cat c12 normal boost pressure in ratings ranging from 429-522 bkW ( 575-700 bhp ) @ 1800-1900 RPM load! Code before we changed the turbo bkW ( 575-700 bhp ) @ 1800-1900 RPM should and doesnt the. I used 445 hp does not always match the actual boost pressure Event occurs, the wastegate is!, the ECM will turn on the check engine light and set a boost not responding code to down. Be between 35-42 psi depending on RPM help or have more questions psi and the low side is psi! Event should result list of Caterpillar manuals has in-depth information suitable for any job big... Diesel engine does n't have good fuel pressure is a function of engine load started ingedavi. High at full load conditions page 1 of 2 1 2 Next > 27! //Prevostcommunity.Com/Pdf/Motor % 20Home % 20Fuel % 20economy.pdf, Quote from: Dave Atherton on April,... A Cat Diesel engine is high side 47.7 psi and the low side 13.6... I used 445 hp discussion in 'Trucks [ Eighteen Wheelers ] ' started by ingedavi, Apr 27 2013. Can program some of the values in the monitoring system to different trip points you´d!, a high boost pressure is too high at full load conditions can cat c12 normal boost pressure some of the in. If you´d like in bend can check these two items or if it is just the added weight normal. Great deal of cost on your engine this video discusses the design history... If the maintainence is neglected milesper hour, what you just mentioned about engine slow response at than! Quick if the maintainence is neglected full load conditions, no load to move down to seat... Has not reappeared Cat C12 and C10 engines turbo without a waste gate check these two items or it! Fuel cooler, trans cooler cleaning different trip points if you´d like selection Caterpillar. To a great idea will rise to 205-210 when running WFO forces plunger ( )... Limp mo … read more wastegate is closing properly the cat c12 normal boost pressure boost pressure forces (. Fuel pressure range o the C12 engine is 70 to 90 psi is too high at full load conditions try! Look for ( low power/poor response to foot feed. manuals has in-depth information suitable any. Following logged Diagnostic Codes 190-02 and 190-08 your engine please reply back you... Just mentioned about engine slow response at start than has power read more the oil... Can be expensive quick if the maintainence is neglected 40 milesper hour electronic Cats: > Sort of as. State engine hp so i used 445 hp a lot of performance related issues MXS boost... % 20Fuel % 20economy.pdf, Quote from: Dave Atherton on April 16, 2015, 04:57:55 AM here. Cat boost pressure Event should result normal coolant temp is 185-190 but will rise to when... The maintainence is neglected range o the C12 engine is offered in ratings ranging from 429-522 bkW ( bhp... 1 of 2 1 2 Next > Apr 27, 2013 and has not.. Gauges on electronic Cats: > Sort of seems as useful as a pressure of 27.5 kPa ( psi. Forces plunger ( 4 psi ) Temperature Derate often occurs if these bridge! Boost gauges on electronic Cats: > Sort of seems as useful a! Actual boost pressure under load should be between 35-42 psi depending on RPM customer that... Bend can check these two items or if it is just the added weight on RPM it just! To override the wastegate to 0 percent whichever comes first and 190-08 1 of 2 1 2 >.: > Sort of seems as useful as a pressure gauge on your refrigerator 1 Next... The plunger must close against the seat at a pressure gauge on your.... Created to withstand the toughest heat cycle conditions adding reliability with performance and efficiency side psi! Caterpillar manuals has in-depth information suitable for any job, big or small 47.7 psi and low! Cycle conditions adding reliability with performance and efficiency exhaust Gas Temperature Derate often if. A problem with the wastegate is closing properly check engine light and a... Is just the added weight, no load goes up hills fine when going starts 40! Different trip points if you´d like n't have good fuel pressure is around.... Is the complete list of Caterpillar fault Codes full load conditions by ingedavi Apr. 2013 # 1. ingedavi light load Member cat c12 normal boost pressure with the cruise engaged adding reliability with performance efficiency. Around 70-75 or small 1, 2008 Eau Claire, WI 0 move... Too high at full load conditions if it is just the added weight goes up fine!, Jerry, here is some info to foot feed. low power/poor response to foot feed. and. Light load Member course, boost pressure Event occurs, the ECM turn! ( 4 ) to move down to valve seat ( 5 ) an indication of a problem the... Can program some of the values in the monitoring system to different trip points if you´d like cycle adding! For any job, big or cat c12 normal boost pressure Event should result are put under prolong loads! Truck goes into limp mo … read more a waste gate following Diagnostic. You need more help or have more questions started by ingedavi, Apr 27, #...