Login with username, password and session length. Ask Your Own Medium and Heavy Trucks Question. If the air is denser, that is, if barometric pressure is higher and/or temperature lower, boost pressure will be higher than specified. Vocational, Technical or Trade Scho. Designed to … It sounds like low, Jerry, here is some info. Fuel pressure is normally 70-90 psi. 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. If a Cat Diesel Engine doesn't have good fuel pressure it can cause a lot of performance related issues. Caterpillar Engine, Temperature and Pressure Sensor. At high RPM's the fuel pressure is around 85-90 psi. we had a low boost code before we changed the turbo. You may >have about as much control. If a High Boost Pressure Event occurs, the wastegate is closing properly. Vocational, Technical or Trade Scho. 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). 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. The reason I ask is that it is time to replace the original cat c12 turbo, and I'm look … Please reply back if you need more help or have more questions. Available for: 2000-2004 CAT C12 Engines Warranty: 1 Year Unlimited Mile Warranty Get better fuel efficiency and drivability from your Caterpillar C12. 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! 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. 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. Are these 700HP C-12? 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. I am happy to assist. At high rpm it would be around 42. 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. Sensors for Cat® Equipment including Pressure, Temperature, Fuel Level, Speed, Position, and Oxygen. Check Cat ET for the following logged Diagnostic Codes 190-02 and 190-08. 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'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%. 53 18. The only way you get max HP is with the cruise engaged. Cat Man. Hi, have info off Cat SIS for the C-12 oil pressure. All Cat Diesel Truck engines have Fuel Transfer Pumps, it is good idea to know how they work and how to change them. I use a visible boost gauge, can I use a Borg-Warner turbo without a waste gate. The fuel pressure range o the C12 engine is 70 to 90 psi. to look for ( low power/poor response to foot feed. ) Perform a torque converter stall test. Around 1500 or below around 35. This is the complete list of Caterpillar fault codes. This video discusses the design, history, and problems with the Cat C12 and C10 engines. 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. Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. Discussion in 'Trucks [ Eighteen Wheelers ]' started by ingedavi, Apr 27, 2013. 10,221 satisfied customers. 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. I try to do mine yearly or at 10K miles whichever comes first. 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. The Cat ® C18 Industrial Diesel Engine is offered in ratings ranging from 429-522 bkW (575-700 bhp)@ 1800-1900 rpm. Customer complains that truck goes into limp mo … read more. Vern, may I suggest before going to a great deal of cost on your engine. Our large selection of Caterpillar manuals has in-depth information suitable for any job, big or small. The turbocharger boost pressure forces plunger (4) to move down to valve seat (5). but now the code is gone and has not reappeared. Vern, what you just mentioned about engine slow response at start than has power. Looking for more information? After 15 seconds, a High Boost Pressure Event should result. 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. Customer reply replied 6 years ago. It goes up hills fine when going starts above 40 milesper hour. However, normal oil pressure is around 50 psi. At idle or low RPM's the fuel pressure is around 70-75. 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%. The Big Boss Turbo design has been created to withstand the toughest heat cycle conditions adding reliability with performance and efficiency. 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 Use Cat ET to override the wastegate to 0 percent. 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. Normally when it should and doesnt, the ECM will turn on the check engine light and set a boost not responding code. When the calculated engine exhaust gas temperature … The plunger must close against the seat at a pressure of 27.5 kPa (4 psi). Thanks for the info. wrote regarding boost gauges on electronic Cats: >Sort of seems as useful as a pressure gauge on your refrigerator. Did not state engine hp so I used 445 hp. Of course, boost pressure is a function of engine load. I will see if beaver in bend can check these two items or if it is just the added weight. 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. Cat Man. Boost pressure. 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