Salt shaker1 Posted August 21, 2013 Share Posted August 21, 2013 My 2013 granite has thrown the codes spn102, FMI14, SPN1127 FMI 18. Was sent to Mack to fix one week after finally getting it back it has done it again. What do they mean, the shop manager couldn't even tell me. Yes shop manager. Could these codes cause a power loss? Quote Link to comment Share on other sites More sharing options...
Challenger Posted August 22, 2013 Share Posted August 22, 2013 SPN 102 FMI 14 Intake manifold pressure. Engine can go into derate causing low power. Possible causes Harness, Connectors, sensor, or boost leak. SPN 1127 FMI 18 Engine turbocharger intake manifold pressure. Engine Derate-low power. Possible causes, boost leaks, EGR system failure.This will cause low power. They both can be caused by a boost leak. Do you hear any boost leaks? Do you have a boost gauge? Does it read 35-37psi? What does the gauge say when the malfunction light comes on, or when you feel the low power? If I was working on it, I would road test the truck and monitor boost pressure and listen for leaks. Then I would pressure test the intake system and check for leaks. Repair any leaks and reroad test. If no problems found I would consider a test pressure sensor. Basically just replacing the boost pressure sensor, then reroad test or release to customer. It could be a number of different things. Has the dealer repaired or replaced anything? This doesnt sound like it would be that difficult to repair. You have 2 codes. You probably only have 1 problem that is causing another code to go with it. Quote Link to comment Share on other sites More sharing options...
Salt shaker1 Posted August 23, 2013 Author Share Posted August 23, 2013 I didn't think to check boost pressure, truck has been sent to the dealer this morning. They didn't change a thing last time it was there. I believe they just reset the light. Luckily it's under warranty. Thank you for ur response. I will now know what to look for and ask about when I pick it up. Quote Link to comment Share on other sites More sharing options...
Keffer inc Posted August 3, 2016 Share Posted August 3, 2016 Mine is doing the same thing. Bobtail in it goes from 8-16 psi boost with cruise control set on flat ground. It seems the vgt kicks in to build higher boost and cuts off near 16 or 20 psi, the leaks down to 5-8 psi and vgt kicks in again. I just bought the truck and can't pull a trailer yet as its not signed on with my company yet. Salt shaker, what did they find on your truck? Also, to pressure test the intake, do I just take off the air filter and install a test setup there and take it up to 20psi to find a leak? Or is there more to it? Quote Link to comment Share on other sites More sharing options...
Keffer inc Posted August 3, 2016 Share Posted August 3, 2016 It's a 2011 CXU613 road tractor with the 445c motor. Quote Link to comment Share on other sites More sharing options...
Keffer inc Posted August 3, 2016 Share Posted August 3, 2016 Yep, check engine light is on. I have code 1127 with fml 10, 14, and 18. The 10 I think I set off by stomping on the gas and then off. Turbo and vgt sound functional. Hoping it was a coupling boot on yours? Quote Link to comment Share on other sites More sharing options...
Keffer inc Posted August 25, 2016 Share Posted August 25, 2016 Dealer has the truck now. They found a leak on the exhaust manifold and a broke stud and o-ring on the intake manifold. Hopefully not too expensive. They said 9 hours and and $400 to $500 parts. Hope this is helpful to someone else along the way. Quote Link to comment Share on other sites More sharing options...
Chris trucking Posted July 8, 2020 Share Posted July 8, 2020 I have 2013 Volvo. Son 1127.fm 10 on do I have to replace the turbo I here no leak to my understanding no power can't pull a empty trailer or hills.. cutting off Quote Link to comment Share on other sites More sharing options...
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